huntrule

WordPress wp2shell Plugin Webshell Access via wp-content/plugins URL Path

Alert on HTTP requests targeting the wp2shell WordPress plugin path used for webshell execution/persistence.

FreeReviewedSigma · Critical · v5
Category
webserver
Author
Swachchhanda Shrawan Poudel (Nextron Systems) (SigmaHQ), DRL 1.1
Published
2026-07-19
Updated
2026-07-31
AnalysisDetection

ATT&CK techniques

Persistence

  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. C2

  13. Exfiltration

  14. Impact

What it detects

This rule flags webserver requests whose URI path contains a wp2shell plugin directory under /wp-content/plugins/wp2shell_. Such access is indicative of using the wp2shell webshell for command execution and potential persistence after compromise. It relies on HTTP request telemetry, specifically the requested URI stem and (optionally) absence of a query string.

Reporting behind it

Related detections9 linkedT1505.003 — drag to rearrange
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Suspicious PHP Webshell Access with Hardcoded Key
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Malicious ManagementMailboxPicker Webshell Written by Diplomatic Specter
Malicious MOVEit human2 Webshell File Creation via file_event
WordPress wp2shell Plugin Webshell Access via wp-content/plugins URL Path
Pivot detection · T1505.003 · 9 related

Changelog

v5
  1. v5
    Candidate ingested via manual entry.2026-07-31
  2. v4
    Candidate ingested via manual entry.2026-07-31
  3. v3
    Candidate ingested via manual entry.2026-07-31
  4. v2
    Candidate ingested via manual entry.2026-07-31
  5. v1
    No changelog recorded for this version.2026-07-30

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