ET MALWARE [PTsecurity] Bitter RAT C2 Response

Query · suricata

flow:established,to_client;
stream_size:client,=,1;
stream_size:server,=,12;
dsize:11;
content:"|0b 00 d2 0b 00 00|"; offset:5; depth:6;
Raw source ET MALWARE [PTsecurity] Bitter RAT C2 Response · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE [PTsecurity] Bitter RAT C2 Response";
    flow:established,to_client;
    stream_size:client,=,1;
    stream_size:server,=,12;
    dsize:11;
    content:"|0b 00 d2 0b 00 00|"; offset:5; depth:6;
    reference:md5,fc516905e3237f1aa03a38a0dde84b52;
    classtype:command-and-control;
    sid:2026826; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_01_21, deployment Perimeter, malware_family BitterRAT, performance_impact Low, confidence Medium, signature_severity Major, tag RAT, updated_at 2019_07_26;
)

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