Suspicious File Download via Certutil URLCache

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects the certutil utility used with urlcache to download a remote file over HTTP, a living-off-the-land technique seen after CVE-2025-31324 exploitation of SAP NetWeaver. Attackers use certutil to retrieve second-stage payloads while evading application controls. This LOLBIN download behavior is rarely legitimate on servers.

Reporting behind it

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Suspicious File Download via certutil URLCache (via process_creation)

Suspicious File Download via Certutil URLCache

Pivot detection · T1105 · 9 related

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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