Malicious Lynx Ransomware Encryptor Execution via Distinctive CLI Flags (via process_creation)

ATT&CK techniques

Impact

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
- T1486Data Encrypted for Impact
- T1489Service Stop

What it detects

This rule detects the Lynx ransomware encryptor launched with its distinctive command-line flags such as --encrypt-network, --load-drives, --stop-processes and --safe-mode documented by Group-IB. Adversaries pass these flags to terminate processes, mount hidden drives and encrypt network paths during deployment, so the combination is a high-confidence sign of active Lynx encryption.

Reporting behind it

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Malicious Lynx Ransomware Encryptor Execution via Distinctive CLI Flags (via process_creation)

Pivot detection · T1486 · 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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