Possible PS1Bot C2 Beacon With Drive Serial URI Pattern (via proxy)

PremiumReviewedSigma · Medium · v1
Category
proxy
Author
HuntRule
Published
2026-09-12
Updated
2026-09-12

ATT&CK techniques

C2
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. Exfiltration

  13. Impact

What it detects

This rule detects HTTP GET requests whose URI query contains the PS1Bot command-and-control marker k=result used to exfiltrate results keyed by the victim drive serial number. This structured URI pattern identifies PS1Bot beaconing to its command-and-control server. Detection of this traffic reveals active command-and-control and data exfiltration.

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Possible PS1Bot C2 Beacon With Drive Serial URI Pattern (via proxy)
Pivot detection · T1071.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.