huntrule

Windows: InfDefaultInstall.exe .inf Execution

Flags Windows process executions of InfDefaultInstall.exe that include an .inf argument in the command line.

FreeReviewedSigma · Medium · v2
Product
windows
Category
process_creation
Author
frack113 (SigmaHQ), DRL 1.1
Published
2021-07-13
Updated
2026-07-31
AnalysisDetection

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

Flags process creation where the command line contains both "InfDefaultInstall.exe " and ".inf". This targets a Windows binary execution pattern where an INF file is used to drive behavior, which attackers can leverage for stealthy execution via a trusted component. Detection relies on process creation telemetry with full command-line strings.

Reporting behind it

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Windows: InfDefaultInstall.exe .inf Execution
Pivot detection · T1218 · 9 related

Changelog

v2
  1. v2
    Candidate ingested via manual entry.2026-07-31
  2. 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.