ET MALWARE Win32/BlackCarat Response from CnC

Query · suricata

flow:established,from_server;
dsize:13;
content:"|72 50 bf 9e|"; offset:9; depth:4; fast_pattern;
Raw source ET MALWARE Win32/BlackCarat Response from CnC · Suricata
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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 Win32/BlackCarat Response from CnC";
    flow:established,from_server;
    dsize:13;
    content:"|72 50 bf 9e|"; offset:9; depth:4; fast_pattern;
    reference:md5,514AB639CD556CEBD78107B4A68A202A;
    reference:url,www.virusbulletin.com/uploads/pdf/conference_slides/2018/AncelKuprins-VB2018-WolfSheep.pdf;
    classtype:command-and-control;
    sid:2026524; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_18, deployment Perimeter, malware_family CaratRAT, performance_impact Low, confidence High, signature_severity Major, tag RAT, updated_at 2019_07_26;
)

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