ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 100

alert tcp $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Backdoor family PCRat/Gh0st CnC traffic (OUTBOUND) 100";
    flow:established,to_server;
    app-layer-protocol:!tls;
    stream_size:server,<,5;
    dsize:>11;
    content:"|78 9c|"; offset:13; depth:2;
    byte_jump:4,-15,relative,little,from_beginning,post_offset -1;
    isdataat:!2,relative;
    pcre:"/^.{8}[\x20-\x7e]{5}\x78\x9c/s";
    reference:url,www.securelist.com/en/descriptions/10155706/Trojan-GameThief.Win32.Magania.eogz;
    reference:url,www.microsoft.com/security/portal/Threat/Encyclopedia/Entry.aspx?Name=Backdoor%3AWin32/PcClient.ZR&ThreatID=-2147325231;
    reference:md5,db1c4342f617798bcb2ba5655d32bf67;
    classtype:command-and-control;
    sid:2021012; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2015_04_27, deployment Perimeter, malware_family Gh0st, malware_family PCRAT, performance_impact Significant, confidence Medium, signature_severity Critical, tag PCRAT, tag Gh0st, tag RAT, updated_at 2024_07_03;
)