Suspicious Remote File Download via Certutil URLCache via process_creation
- Product
- windows
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-09-24
- Updated
- 2026-09-24
ATT&CK techniques
C2Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
Exfiltration
Impact
What it detects
This rule detects certutil.exe abused with the urlcache and split arguments to download remote files, an ingress technique used during Operation Jacana against a Guyanese government entity. Attackers use certutil as a trusted downloader to stage additional tooling while blending with normal certificate activity.
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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