ET MALWARE Win32/FlyStudio.OJJ CnC Checkin

Query · suricata

flow:established,to_server;
content:"|60 55 4a 3f 34|"; fast_pattern; startswith;
content:"|19 24 2f|"; endswith;
threshold:type limit, track by_src, seconds 120, count 1;
Raw source ET MALWARE Win32/FlyStudio.OJJ CnC Checkin · 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/FlyStudio.OJJ CnC Checkin";
    flow:established,to_server;
    content:"|60 55 4a 3f 34|"; fast_pattern; startswith;
    content:"|19 24 2f|"; endswith;
    threshold:type limit, track by_src, seconds 120, count 1;
    reference:md5,0a55110b8a5b786a618bed6d76c4fa7f;
    classtype:trojan-activity;
    sid:2039681; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2022_11_03, deployment Perimeter, malware_family Win32_FlyStudio_OJJ, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_11_03;
)

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