ET MALWARE APT/TransparentTribe CnC Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE APT/TransparentTribe CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; endswith;
    http.request_body;
    content:"=explorer!"; fast_pattern;
    content:"!!&"; distance:0;
    content:"!!&"; distance:0;
    content:"!!&"; distance:0;
    content:"!!&"; distance:0;
    content:"!!&"; distance:0;
    content:"=Microsoft+Windows+"; distance:0;
    http.header_names;
    content:!"Referer";
    content:!"User-Agent";
    reference:md5,77549b8211c05fdf9114b09d38e88d98;
    classtype:command-and-control;
    sid:2029242; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_09, deployment Perimeter, malware_family TransparentTribe, confidence High, signature_severity Major, updated_at 2020_01_09;
)