Malicious Data Exfiltration via S5cmd to S3

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 the s5cmd client copying local data to an S3 bucket, a high-throughput exfiltration path to attacker-controlled cloud storage. This was catalogued among data-exfiltration LOLBIN binaries. Bulk copying of internal files to S3 indicates staging for double-extortion.

Reporting behind it

Related detections9 linkedT1567.002 — drag to rearrange

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Suspicious Data Exfiltration via rclone

Malicious Data Exfiltration via S5cmd to S3

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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