Malicious Data Exfiltration to MEGA and FTP via rclone Multi-Threaded Copy (via process_creation)

ATT&CK techniques

Exfiltration

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
- T1048.003Exfiltration Over Unencrypted Non-C2 Protocol
- T1567.002Exfiltration to Cloud Storage
Impact

What it detects

This rule detects rclone copying data to a MEGA or FTP remote with the high-throughput multi-thread-streams and no-console flag set that ransomware crews favor for silent bulk exfiltration, as seen in the Cobalt Strike SOCKS LockBit intrusion. Adversaries use rclone to move file-share contents to cloud storage before encryption, so this flag pattern against a cloud or FTP target is a pre-ransomware data-theft indicator.

Reporting behind it

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Malicious Data Exfiltration to MEGA and FTP via rclone Multi-Threaded Copy (via process_creation)

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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