Malicious Nx Postinstall Secret Harvesting to Inventory File (s1ngularity Supply Chain)

ATT&CK techniques

Initial Access → Cred Access

Recon
Resource Dev
Initial Access
- T1195.002Compromise Software Supply Chain
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1552.001Credentials In Files
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a process writing to the /tmp/inventory.txt path used by the malicious nx postinstall telemetry payload to stage harvested secrets. It matters because this file collects credentials and tokens from developer machines before exfiltration in the s1ngularity supply chain attack.

Reporting behind it

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Malicious Nx Postinstall Secret Harvesting to Inventory File (s1ngularity Supply Chain)

Pivot detection · T1552.001 · 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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