PaperCut MF/NG Potential Exploitation

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About the rule

Rule Type

Standard

Rule Description

Detects suspicious child processes of "pc-app.exe". Which could indicate potential exploitation of PaperCut

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND PARENTPROCESSNAME endswith "\pc-app.exe" AND PROCESSNAME endswith "\bash.exe,\calc.exe,\certutil.exe,\cmd.exe,\csc.exe,\cscript.exe,\dllhost.exe,\mshta.exe,\msiexec.exe,\powershell.exe,\pwsh.exe,\regsvr32.exe,\rundll32.exe,\scriptrunner.exe,\wmic.exe,\wscript.exe,\wsl.exe" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Nasreddine Bencherchali (Nextron Systems), Huntress DE&TH Team (idea)