Malicious wp2shell User Agent in Web Requests (via webserver)

PremiumReviewedSigma · High · v1
Category
webserver
Author
HuntRule
Published
2026-07-07
Updated
2026-08-28

ATT&CK techniques

Initial Access
  1. Recon

  2. Resource Dev

  3. Execution

  4. Persistence

  5. Priv Esc

  6. Defense Evasion

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects inbound web requests carrying the wp2shell or rezwp2shell user-agent strings used by the exploitation tooling for CVE-2026-63030 and CVE-2026-60137. These agent values identify automated scanning and exploitation attempts against WordPress. The strings are tool-specific and rarely seen in benign traffic.

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Malicious wp2shell User Agent in Web Requests (via webserver)
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Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.