Malicious wp2shell WordPress Exploitation via Batch Endpoint User Agent

PremiumReviewedSigma · High · v1
Category
webserver
Author
HuntRule
Published
2026-09-20
Updated
2026-09-20

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 POST requests to the wp-json batch endpoint carrying a wp2shell or CVE-2026-63030 user agent which is the exploitation traffic of the pre-auth WordPress RCE. The bespoke user-agent strings identify the attacker tooling driving the plugin drop. Seeing this endpoint and marker together confirms active exploitation attempts.

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Malicious wp2shell WordPress Exploitation via Batch Endpoint User Agent
Pivot detection · T1190 · 9 related

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