ET MALWARE UNK NSFWBot CnC Activity (GET)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE UNK NSFWBot CnC Activity (GET)";
    flow:established,to_server;
    flowbits:set,ET.UNK.NSFWBOT;
    http.method;
    content:"GET";
    http.uri;
    content:"/bot.php|3f|action|3d|"; startswith; fast_pattern;
    pcre:"/^\x2fbot\x2ephp\x3faction\x3d(?:get_commands|mark_executed|update|get_settings)\x26bot_id\x3d[a-z0-9\x2d]{36}(?:\x26pc_name)?/";
    http.user_agent;
    content:"WindowsPowerShell";
    threshold:type limit,count 1,seconds 300,track by_src;
    classtype:command-and-control;
    sid:2061773; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_04_21, deployment Perimeter, confidence High, signature_severity Critical, tag c2, updated_at 2025_04_21, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
    target:src_ip;
)