ET MALWARE Win32.Renos/Artro Trojan Checkin M1

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32.Renos/Artro Trojan Checkin M1";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php?";
    content:"=v";
    pcre:"/\.php\?[^=]+=v\d{2}[0-9A-Za-z\/\+]+==$/";
    http.user_agent;
    content:"wget"; nocase; fast_pattern;
    http.request_body;
    content:"data="; depth:5;
    pcre:"/^data=(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4})$/";
    http.header_names;
    content:!"Referer";
    reference:md5,01ca25570659c2e1b8b887a3229ef421;
    reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?name=TROJANDOWNLOADER%3aWIN32/RENOS.MJ;
    reference:url,www.securelist.com/en/analysis/204792172/The_Advertising_Botnet;
    classtype:command-and-control;
    sid:2013186; rev:21;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2011_01_13, deployment Perimeter, signature_severity Major, updated_at 2020_08_27;
)