Suspicious TALONITE Certutil LOLBIN Decode and Download Abuse (via process_creation)

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1140Deobfuscate/Decode Files or Information
- T1218System Binary Proxy Execution
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects certutil.exe invoked with decode, URL cache, or verifyctl arguments used to deobfuscate or download payloads. TALONITE abuses certutil as a living-off-the-land binary to decode staged content and retrieve additional tooling during intrusions. Certutil used for file decoding or remote fetch outside certificate management is a common defense-evasion and delivery technique.

Reporting behind it

Related detections9 linkedT1140 — drag to rearrange

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Suspicious extrac32 CAB Extraction Abuse

Malicious cdb.exe Masquerading as fontdrvhost in ProgramData (via process_creation)

Suspicious StrelaStealer Base64 Payload Decode via Certutil (via process_creation)

Suspicious File Download via certutil URLCache (via process_creation)

Suspicious Base64 Decoding Piped to Shell on macOS

Suspicious TALONITE Certutil LOLBIN Decode and Download Abuse (via process_creation)

Pivot detection · T1140 · 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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