Suspicious MSI Installation from Public Music Directory via Msiexec (via process_creation)
- Product
- windows
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-10-22
- Updated
- 2026-10-22
ATT&CK techniques
Defense EvasionRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects msiexec silently installing an MSI staged in the public users music directory. TA397 downloaded gfxview.msi to C\users\public\music and installed it quietly to deploy the MiyaRAT backdoor.
Reporting behind it
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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Also included
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