: Ensuring that service definitions in HKLM\System\CurrentControlSet\Services cannot be modified by non-admin users.
Modern EDR tools should be configured to flag suspicious child processes generated by nssm.exe . For example, nssm.exe spawning cmd.exe , powershell.exe , or unknown binaries out of temporary directories ( C:\Windows\Temp or C:\Users\...\AppData ) should trigger immediate alerts and automated containment blocks.
Provide a checklist for using PowerShell. nssm224 privilege escalation updated
1. Enforce Strict Permissions (Principle of Least Privilege)
A patch has been released for nssm version 224, which addresses this vulnerability. The patch: Provide a checklist for using PowerShell
The user might rename the legitimate application executable to app_orig.exe .
Never install utility applications or custom wrappers like NSSM in root directories (like C:\ ) or generic folders with weak inheritable permissions. The patch: The user might rename the legitimate
Disclaimer: This information is for educational and defensive security purposes only. If you'd like, I can:
wmic service get name,displayname,pathname,startmode | findstr /i "Auto" | findstr /i /v "C:\Windows\\" | findstr /i /v """ Use code with caution. Copied to clipboard
# Create a malicious service configuration file echo "C:\ malicious\payload.exe" > C:\Program Files\nssm\etc\nssm.conf