Suspicious prt-scan Campaign Credential Harvesting via proc environ Scan (via process_creation)

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1552.001Credentials In Files
- T1552.005Cloud Instance Metadata API
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects processes reading other processes environment blocks through /proc/*/environ which the prt-scan background daemon uses to sweep memory for AWS Cloudflare Netlify and NPM tokens on CI runners. Broad scanning of /proc environ files is uncommon in normal build activity and suggests credential harvesting.

Reporting behind it

Related detections9 linkedT1552.001 — drag to rearrange

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Suspicious prt-scan Campaign Credential Harvesting via proc environ Scan (via process_creation)

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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