Suspicious Velociraptor Child Process

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About the rule

Rule Type

Standard

Rule Description

Detects the suspicious use of the Velociraptor DFIR tool to execute other tools or download additional payloads.

Severity

Attention

Rule Requirement

Criteria

Action1: actionname = "Process started" AND ( PARENTPROCESSNAME endswith "\Velociraptor.exe" AND (( COMMANDLINE contains "code.exe" AND COMMANDLINE contains "tunnel" AND COMMANDLINE contains "--accept-server-license-terms" ) OR ( COMMANDLINE contains "msiexec" AND COMMANDLINE contains "/i" AND COMMANDLINE contains "http" ) OR ( COMMANDLINE contains "Invoke-WebRequest ,IWR ,.DownloadFile,.DownloadString" AND ( PROCESSNAME contains "\powershell.exe,\powershell_ise.exe,\pwsh.exe" OR ORIGINALFILENAME contains "powershell.exe,powershell_ise.exe,pwsh.exe" )))) select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME,Action1.DOMAIN,Action1.ORIGINALFILENAME,Action1.PARENTPROCESSID,Action1.PROCESSID,Action1.PRODUCT_NAME,Action1.SECURITYID

Detection

Execution Mode

realtime

Log Sources

Windows

Author

@Swachchhanda Shrawan Poudel (Nextron Systems)