ET MALWARE PunkeyPOS HTTP CnC Beacon Fake UA

Query · suricata

flow:established,to_server;
http.user_agent; bsize:19;
content:"Mozilla Firefox/4.0"; fast_pattern;
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
Raw source ET MALWARE PunkeyPOS HTTP CnC Beacon Fake UA · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE PunkeyPOS HTTP CnC Beacon Fake UA";
    flow:established,to_server;
    http.user_agent; bsize:19;
    content:"Mozilla Firefox/4.0"; fast_pattern;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    reference:url,trustwave.com/Resources/SpiderLabs-Blog/New-POS-Malware-Emerges---Punkey/;
    reference:md5,43c277dd56f9c6de4b8dc249e12039df;
    classtype:command-and-control;
    sid:2020934; rev:5;
    metadata:attack_target Client_Endpoint, created_at 2015_04_17, deployment Perimeter, signature_severity Major, tag c2, updated_at 2024_03_10, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)

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