Encoded information using Windows certificate management tool

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	XDR Agent
ATT&CK Tactic	Stealth (TA0005)
ATT&CK Technique	Obfuscated Files or Information: Encrypted/Encoded File (T1027.013), Deobfuscate/Decode Files or Information (T1140)
Severity	Medium

Description

Encoding/decoding to/from using certutil.exe could be used to evade detection.

Attacker's Goals

Evade detection by executing processes with obfuscated arguments.

Investigative actions

Check encoded/decoded command content and see whether it is benign or malicious.