ET MALWARE Win32/Agent.WVW CnC Beacon 1

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Agent.WVW CnC Beacon 1";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/s?"; depth:3; fast_pattern;
    content:"|3b|"; distance:0;
    content:"|3b|"; distance:0;
    content:"."; distance:1; within:2;
    content:"_"; distance:0;
    pcre:"/^\/s\?\d+\x3b\d+\x3b\d{1,2}\.\d_(?:32|64)_\d+(?:\x3b\d+){4}$/";
    reference:md5,1de834aca8905124e1abcd4f71dea062;
    classtype:command-and-control;
    sid:2021257; rev:3;
    metadata:attack_target Client_Endpoint, created_at 2015_06_11, deployment Perimeter, malware_family Win32_Agent_WVW, signature_severity Major, tag c2, updated_at 2020_05_22, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
)