ET MALWARE BadPatch CnC Activity

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE BadPatch CnC Activity";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.user_agent;
    content:"python-requests/"; depth:16;
    http.request_body;
    content:"=";
    pcre:"/^(?:[A-F0-9]{2}%3A){5}[A-F0-9]{2}&/R";
    content:"=Py+version+"; distance:0; fast_pattern;
    reference:url,www.fortinet.com/blog/threat-research/badpatch-campaign-uses-python-malware.html;
    classtype:command-and-control;
    sid:2028913; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_10_28, deployment Perimeter, malware_family BadPatch, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_30;
)