Malicious ShadowGuard eBPF Rootkit Control via Magic Kill Signal (via process_creation)

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1014Rootkit
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the kill command issued with the out-of-range signals 900 and 901, the covert control channel used to command the ShadowGuard eBPF rootkit in the Shadow espionage campaigns. Real signals never exceed 64, so these magic values are interpreted only by the rootkit to toggle its process allow-list and hiding behavior.

Reporting behind it

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Malicious ShadowGuard eBPF Rootkit Control via Magic Kill Signal (via process_creation)

Pivot detection · T1014 · 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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