Malicious Exchange Transport Agent Injection via Configuration File (via file_event)

PremiumReviewedSigma · High · v1
Product
windows
Category
file_event
Author
HuntRule
Published
2026-05-05
Updated
2026-08-28

ATT&CK techniques

Persistence
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  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 load an artifact in the Exchange transport agent.

Related detections4 linkedT1505.002 — drag to rearrange
Malicious Exchange Transport Agent Installation Artifacts - Native (via msexchange-management)
Windows MSExchange Transport Agent Installation via Install-TransportAgent
Windows Process Creation: Exchange Transport Agent Installation via Install-TransportAgent
Windows MSExchange: Failed Transport Agent Installation (Install-TransportAgent)
Malicious Exchange Transport Agent Injection via Configuration File (via file_event)
Pivot detection · T1505.002 · 4 related

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