Dump Credentials from Windows Credential Manager With PowerShell

 Original Source: [Sigma source]
Title: Dump Credentials from Windows Credential Manager With PowerShell
Status: test
Description:Adversaries may search for common password storage locations to obtain user credentials. Passwords are stored in several places on a system, depending on the operating system or application holding the credentials.
References:
  -https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1555/T1555.md
Author: frack113
Date: 2021-12-20
modified:2022-12-25
Tags:
  • -'attack.credential-access'
  • -'attack.t1555'
Logsource:
  • product: windows
  • category: ps_script
  • definition: Requirements: Script Block Logging must be enabled
Detection:
  selection_kiddie:
    ScriptBlockText|contains:
      -'Get-PasswordVaultCredentials'
      -'Get-CredManCreds'

  selection_rename_Password:
    ScriptBlockText|contains|all:
      -'New-Object'
      -'Windows.Security.Credentials.PasswordVault'

  selection_rename_credman:
    ScriptBlockText|contains|all:
      -'New-Object'
      -'Microsoft.CSharp.CSharpCodeProvider'
      -'[System.Runtime.InteropServices.RuntimeEnvironment]::GetRuntimeDirectory())'
      -'Collections.ArrayList'
      -'System.CodeDom.Compiler.CompilerParameters'

  condition:1 of selection_*
Falsepositives:
  -Unknown
Level: medium