Suspicious Payload Download to Temp Directory by Simps Botnet (via process_creation)

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects wget fetching a payload into the /tmp/simps path used by the Simps botnet dropper before granting execute permissions. Downloading DDoS modules into a world writable temp directory is an early staging step of the Keksec linked infection chain.

Reporting behind it

Related detections9 linkedT1105 — drag to rearrange

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Suspicious Payload Download to Temp Directory by Simps Botnet (via process_creation)

Pivot detection · T1105 · 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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