Suspicious Remote HTA Execution via Mshta (via process_creation)

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-10-31
Updated
2026-10-31

ATT&CK techniques

Defense Evasion
  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 detects mshta.exe fetching and running an HTA payload from a remote URL, the initial execution step of the infostealer campaign targeting the Italian region. Abusing the signed mshta binary to run remote scripted content bypasses application controls and stages later stealer components.

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Malicious Metasploit Stager Delivery via mshta Remote HTA (via process_creation)
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Suspicious Kimsuky Remote HTA Payload Execution via mshta (via process_creation)
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Suspicious Command Interpreter Spawned by mshta (via process_creation)
Suspicious Remote HTA Execution via Mshta (via process_creation)
Pivot detection · T1218.005 · 9 related

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