Emerging Threathightest
Potential Goofy Guineapig Backdoor Activity
Detects a specific broken command that was used by Goofy-Guineapig as described by the NCSC report.
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Launch
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic1 selector
detection:
selection:
CommandLine|contains: 'choice /t %d /d y /n >nul'
condition: selectionFalse Positives
Unlikely
False positives are unlikely for most environments. High confidence detection.
References
MITRE ATT&CK
Tactics
Other
detection.emerging-threats
Rule Metadata
Rule ID
477a5ed3-a374-4282-9f3b-ed94e159a108
Status
test
Level
high
Type
Emerging Threat
Created
Sun May 14
Path
rules-emerging-threats/2021/Malware/Goofy-Guineapig/proc_creation_win_malware_goofy_guineapig_broken_cmd.yml
Raw Tags
attack.executiondetection.emerging-threats