从 Windows 7 凭据管理器获取 PowerShell 中的缓存凭据

Get Cached Credentials in PowerShell from Windows 7 Credential Manager

我可以使用一些我忽略的 API 来执行此操作，还是我必须弄清楚将此处提到的 C# .NET API 调用移植到 PowerShell 中以在脚本中实现这一点？

我相信您可以使用 Add-Type cmdlet 轻松移植它：

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$sig = @“

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct NativeCredential
{
public UInt32 Flags;
public CRED_TYPE Type;
public IntPtr TargetName;
public IntPtr Comment;
public System.Runtime.InteropServices.ComTypes.FILETIME LastWritten;
public UInt32 CredentialBlobSize;
public IntPtr CredentialBlob;
public UInt32 Persist;
public UInt32 AttributeCount;
public IntPtr Attributes;
public IntPtr TargetAlias;
public IntPtr UserName;

internal static NativeCredential GetNativeCredential(Credential cred)
{
NativeCredential ncred = new NativeCredential();
ncred.AttributeCount = 0;
ncred.Attributes = IntPtr.Zero;
ncred.Comment = IntPtr.Zero;
ncred.TargetAlias = IntPtr.Zero;
ncred.Type = CRED_TYPE.GENERIC;
ncred.Persist = (UInt32)1;
ncred.CredentialBlobSize = (UInt32)cred.CredentialBlobSize;
ncred.TargetName = Marshal.StringToCoTaskMemUni(cred.TargetName);
ncred.CredentialBlob = Marshal.StringToCoTaskMemUni(cred.CredentialBlob);
ncred.UserName = Marshal.StringToCoTaskMemUni(System.Environment.UserName);
return ncred;
}
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct Credential
{
public UInt32 Flags;
public CRED_TYPE Type;
public string TargetName;
public string Comment;
public System.Runtime.InteropServices.ComTypes.FILETIME LastWritten;
public UInt32 CredentialBlobSize;
public string CredentialBlob;
public UInt32 Persist;
public UInt32 AttributeCount;
public IntPtr Attributes;
public string TargetAlias;
public string UserName;
}

public enum CRED_TYPE : uint
{
GENERIC = 1,
DOMAIN_PASSWORD = 2,
DOMAIN_CERTIFICATE = 3,
DOMAIN_VISIBLE_PASSWORD = 4,
GENERIC_CERTIFICATE = 5,
DOMAIN_EXTENDED = 6,
MAXIMUM = 7, // Maximum supported cred type
MAXIMUM_EX = (MAXIMUM + 1000), // Allow new applications to run on old OSes
}

public class CriticalCredentialHandle : Microsoft.Win32.SafeHandles.CriticalHandleZeroOrMinusOneIsInvalid
{
public CriticalCredentialHandle(IntPtr preexistingHandle)
{
SetHandle(preexistingHandle);
}

public Credential GetCredential()
{
if (!IsInvalid)
{
NativeCredential ncred = (NativeCredential)Marshal.PtrToStructure(handle,
typeof(NativeCredential));
Credential cred = new Credential();
cred.CredentialBlobSize = ncred.CredentialBlobSize;
cred.CredentialBlob = Marshal.PtrToStringUni(ncred.CredentialBlob,
(int)ncred.CredentialBlobSize / 2);
cred.UserName = Marshal.PtrToStringUni(ncred.UserName);
cred.TargetName = Marshal.PtrToStringUni(ncred.TargetName);
cred.TargetAlias = Marshal.PtrToStringUni(ncred.TargetAlias);
cred.Type = ncred.Type;
cred.Flags = ncred.Flags;
cred.Persist = ncred.Persist;
return cred;
}
else
{
throw new InvalidOperationException(“Invalid CriticalHandle!“);
}
}

override protected bool ReleaseHandle()
{
if (!IsInvalid)
{
CredFree(handle);
SetHandleAsInvalid();
return true;
}
return false;
}
}

[DllImport(“Advapi32.dll“, EntryPoint =”CredReadW“, CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool CredRead(string target, CRED_TYPE type, int reservedFlag, out IntPtr CredentialPtr);

[DllImport(“Advapi32.dll“, EntryPoint =”CredFree“, SetLastError = true)]
public static extern bool CredFree([In] IntPtr cred);

“@
Add–Type –MemberDefinition $sig -Namespace“ADVAPI32” -Name ‘Util’

$targetName =“computer”
$nCredPtr= New-Object IntPtr

$success = [ADVAPI32.Util]::CredRead($targetName,1,0,[ref] $nCredPtr)

if($success){
$critCred = New-Object ADVAPI32.Util+CriticalCredentialHandle $nCredPtr
$cred = $critCred.GetCredential()
$password = $cred.CredentialBlob;
write-host –fore blue $password
}

改编自此处：http://social.technet.microsoft.com/Forums/en-US/ITCG/thread/e91769eb-dbce-4e77-8b61-d3e55690b511/

基于：http://blogs.msdn.com/b/peerchan/archive/2005/11/01/487834.aspx

Get Cached Credentials in PowerShell from Windows 7 Credential Manager

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