Suspicious Node Payload Drop in Local Share Directory (via file_event)

ATT&CK techniques

Initial Access → Execution

Recon
Resource Dev
Initial Access
- T1195.002Compromise Software Supply Chain
Execution
- T1059.007JavaScript
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects creation of a sync.js payload under a hidden NodeJS local-share directory. The M-Red-Team AsyncAPI supply-chain compromise dropped this file after a GitHub Actions pwn-request to stage its second stage. A JavaScript payload written to this unusual location is a strong indicator of implant staging.

Reporting behind it

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Suspicious Node Payload Drop in Local Share Directory (via file_event)

Pivot detection · T1059.007 · 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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