Detectionhightest

PUA - Rclone Execution

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

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch

Bhabesh Raj, Sittikorn S, Aaron Greetham - NCC GroupCreated Mon May 10Updated Sun Mar 05e37db05d-d1f9-49c8-b464-cee1a4b11638windows

Log Source

WindowsProcess Creation

ProductWindows← raw: windows

CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic

detection:
    selection_specific_options:
        CommandLine|contains|all:
            - '--config '
            - '--no-check-certificate '
            - ' copy '
    selection_rclone_img:
        - Image|endswith: '\rclone.exe'
        - Description: 'Rsync for cloud storage'
    selection_rclone_cli:
        CommandLine|contains:
            - 'pass'
            - 'user'
            - 'copy'
            - 'sync'
            - 'config'
            - 'lsd'
            - 'remote'
            - 'ls'
            - 'mega'
            - 'pcloud'
            - 'ftp'
            - 'ignore-existing'
            - 'auto-confirm'
            - 'transfers'
            - 'multi-thread-streams'
            - 'no-check-certificate '
    condition: selection_specific_options or all of selection_rclone_*