ET MALWARE W32/SPARS/ARS Stealer Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE W32/SPARS/ARS Stealer Checkin";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?action=";
    content:"&hwid="; distance:0;
    content:"&access="; fast_pattern; distance:0;
    http.header_names;
    content:!"Referer";
    reference:md5,76516b465b3589547a9c7c7d955238d8;
    classtype:command-and-control;
    sid:2025344; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_02_12, deployment Perimeter, malware_family Ars_Stealer, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_24;
)