Suspicious Rclone Remote-Control Daemon For Data Exfiltration

ATT&CK techniques

Exfiltration

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
- T1567.002Exfiltration to Cloud Storage
Impact

What it detects

This rule detects rclone launched with the rcd remote-control daemon argument. The MedusaLocker operator used rclone rcd to exfiltrate victim data to cloud storage before deploying ransomware. Rclone running as a remote-control daemon on an endpoint is a strong sign of automated bulk exfiltration to a cloud service.

Reporting behind it

Related detections9 linkedT1567.002 — drag to rearrange

Malicious Bulk Data Exfiltration via Rclone (via process_creation)

Rclone SMB Share Exfiltration

Suspicious Data Exfiltration via Rclone to Cloud Storage (via process_creation)

Malicious Data Exfiltration via MEGAcmd

Suspicious Command and Control via Discord or Telegram Bot API

Data Exfiltration to WebDAV Share via curl Upload

Suspicious Data Exfiltration Tool S3 Browser Execution (via process_creation)

Suspicious Restic Cloud Backup Exfiltration via Renamed winupdate Binary via process_creation

Suspicious Data Exfiltration to Telegram Bot API sendDocument (via proxy)

Suspicious Rclone Remote-Control Daemon For Data Exfiltration

Pivot detection · T1567.002 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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