Malicious CrossRAT Persistence via mediamgrs Artifacts (via file_event)

PremiumReviewedSigma · High · v1
Product
macos
Category
file_event
Author
HuntRule
Published
2026-10-31
Updated
2026-10-31

ATT&CK techniques

Persistence → Priv Esc
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Defense Evasion

  6. Cred Access

  7. Discovery

  8. Lateral Movement

  9. Collection

  10. C2

  11. Exfiltration

  12. Impact

What it detects

This rule detects creation of the mediamgrs.jar payload or its mediamgrs.plist launch agent used by the CrossRAT component bundled with OSX CreativeUpdate. These artifacts establish cross platform remote access persistence that survives reboot.

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Pivot detection · T1543.001 · 9 related

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