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

Suspicious Data Exfiltration via Rclone Cloud Transfer (via process_creation)

Suspicious Data Exfiltration to Dropbox via curl (via process_creation)

Suspicious Lambda Function Creation Across Regions in AWS Extortion Operation

Malicious Data Exfiltration via Renamed Rclone Using Masqueraded Configuration

Suspicious Cloud Exfiltration via Rclone

Suspicious Rclone Cloud Sync Execution for Data Exfiltration via Command Line

Suspicious Data Exfiltration via MEGAsync (via process_creation)

Malicious Data Exfiltration via MinIO Client from Windows Temp

Suspicious Data Exfiltration to Backblaze B2 via rclone (via process_creation)

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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