ET MALWARE Bitter APT AlmondRAT CnC Checkin

Query · suricata

dsize:<150;
flow:established,to_server;
content:"|00 2a 00|";
pcre:"/^(?:[A-F0-9]\x00){12}/R";
content:"|2a 00|W|00|i|00|n|00|d|00|o|00|w|00|s|00 20 00|"; fast_pattern;
Raw source ET MALWARE Bitter APT AlmondRAT CnC Checkin · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp-pkt $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Bitter APT AlmondRAT CnC Checkin";
    dsize:<150;
    flow:established,to_server;
    content:"|00 2a 00|";
    pcre:"/^(?:[A-F0-9]\x00){12}/R";
    content:"|2a 00|W|00|i|00|n|00|d|00|o|00|w|00|s|00 20 00|"; fast_pattern;
    reference:url,www.secuinfra.com/en/techtalk/whatever-floats-your-boat-bitter-apt-continues-to-target-bangladesh;
    classtype:trojan-activity;
    sid:2037717; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2022_07_07, deployment Perimeter, malware_family AlmondRAT, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_07_07;
)

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