Emerging Threathightest

Goofy Guineapig Backdoor Potential C2 Communication

Detects potential C2 communication related to Goofy Guineapig backdoor

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Launch
Nasreddine Bencherchali (Nextron Systems)Created Sun May 144f573bb6-701a-4b8d-91db-87ae106e9a612021
Emerging Threat
Active Threat

Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.

Log Source
Proxy Log
CategoryProxy Log← raw: proxy
Detection Logic
Detection Logic1 selector
detection:
    selection:
        c-useragent: 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36'
        cs-host: 'static.tcplog.com'
    condition: selection
False Positives
Unlikely

False positives are unlikely for most environments. High confidence detection.

MITRE ATT&CK

Other

detection.emerging-threats
Rule Metadata
Rule ID
4f573bb6-701a-4b8d-91db-87ae106e9a61
Status
test
Level
high
Type
Emerging Threat
Created
Sun May 14
Path
rules-emerging-threats/2021/Malware/Goofy-Guineapig/proxy_malware_goofy_gunieapig_c2_communication.yml
Raw Tags
attack.command-and-controldetection.emerging-threats
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