ET MALWARE PunkeyPOS HTTP CnC Beacon 2

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE PunkeyPOS HTTP CnC Beacon 2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"version="; depth:8; fast_pattern;
    pcre:"/^version=\d{4}-\d{1,2}-\d{1,2}$/";
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.header_names;
    content:!"Accept|0d 0a|";
    content:!"Referer|0d 0a|";
    reference:url,trustwave.com/Resources/SpiderLabs-Blog/New-POS-Malware-Emerges---Punkey/;
    reference:md5,43c277dd56f9c6de4b8dc249e12039df;
    classtype:command-and-control;
    sid:2020936; rev:4;
    metadata:attack_target Client_Endpoint, created_at 2015_04_17, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_06_29, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)