Suspicious Data Exfiltration via MEGAsync (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
- T1567.002Exfiltration to Cloud Storage
Impact

What it detects

This rule detects execution of the MEGAsync client which was used to exfiltrate data during a LockBit 3.0 ransomware intrusion. MEGAsync is a legitimate cloud sync tool frequently abused for bulk data theft in double-extortion cases. Presence on a server or unexpected host suggests staged data leaving the environment before encryption.

Reporting behind it

Related detections9 linkedT1567.002 — drag to rearrange

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Suspicious Cloud Exfiltration via Rclone Linked to INC Ransomware

Suspicious Data Exfiltration via MEGAsync (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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