Sigma rule: RClone Execution

Rule

Title

RClone Execution

Status

deprecated

Level

high

Author

Bhabesh Raj, Sittikorn S

Date

2021/05/10

Modified

2022/04/11

File

deprecated/windows/sysmon_rclone_execution.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

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

Log source

product

windows

category

process_creation

Detection

selection:
    Description: 'Rsync for cloud storage'
selection2:
    CommandLine|contains|all:
        - '--config '
        - '--no-check-certificate '
        - ' copy '
selection3:
    Image|endswith:
        - '\rclone.exe'
    CommandLine|contains:
        - 'mega'
        - 'pcloud'
        - 'ftp'
        - '--progress'
        - '--ignore-existing'
        - '--auto-confirm'
        - '--transfers'
        - '--multi-thread-streams'
condition: 1 of selection*

False positives (as the rule lists them)

• Legitimate RClone use

Tags

• attack.exfiltration
• attack.t1567.002

MITRE ATT&CK ids this rule names

• T1567.002

References

• https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware
• https://us-cert.cisa.gov/ncas/analysis-reports/ar21-126a
• https://labs.sentinelone.com/egregor-raas-continues-the-chaos-with-cobalt-strike-and-rclone
• https://www.splunk.com/en_us/blog/security/darkside-ransomware-splunk-threat-update-and-detections.html

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/deprecated/windows/sysmon_rclone_execution.yml