Emerging Threathightest
Potential Goofy Guineapig GoolgeUpdate Process Anomaly
Detects "GoogleUpdate.exe" spawning a new instance of itself in an uncommon location as seen used by the Goofy Guineapig backdoor
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Launch
X__Junior (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)Created Mon May 15bdbab15a-3826-48fa-a1b7-723cd8f32fcc2021
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 Logic2 selectors
detection:
selection:
ParentImage|endswith: '\GoogleUpdate.exe'
Image|endswith: '\GoogleUpdate.exe'
filter_main_legit_paths:
- Image|startswith:
- 'C:\Program Files\Google\'
- 'C:\Program Files (x86)\Google\'
- Image|contains: '\AppData\Local\Google\Update\'
condition: selection and not 1 of filter_main_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Tactics
Other
detection.emerging-threats
Rule Metadata
Rule ID
bdbab15a-3826-48fa-a1b7-723cd8f32fcc
Status
test
Level
high
Type
Emerging Threat
Created
Mon May 15
Path
rules-emerging-threats/2021/Malware/Goofy-Guineapig/proc_creation_win_malware_goofy_guineapig_googleupdate_uncommon_child_instance.yml
Raw Tags
attack.defense-evasiondetection.emerging-threats