PUA - Rclone Execution

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About the rule

Rule Type

Standard

Rule Description

Detects execution of RClone utility for exfiltration as used by various ransomwares strains like REvil, Conti, FiveHands, etc

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (COMMANDLINE contains "--config " AND COMMANDLINE contains "--no-check-certificate " AND COMMANDLINE contains " copy ") OR ((PROCESSNAME endswith "\rclone.exe" OR MESSAGE = "Rsync for cloud storage") AND COMMANDLINE contains "pass,user,copy,sync,config,lsd,remote,ls,mega,pcloud,ftp,ignore-existing,auto-confirm,transfers,multi-thread-streams,no-check-certificate ") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Bhabesh Raj, Sittikorn S, Aaron Greetham (@beardofbinary) - NCC Group