ET RETIRED Win32/Caypnamer.A RAT CnC Initial Checkin

Query · suricata

flow:established,to_server;
content:"|60 55 4a 3f 34 29|"; startswith;
content:"|ce de 00 0e 19 24 2f|"; endswith; fast_pattern;
Raw source ET RETIRED Win32/Caypnamer.A RAT CnC Initial 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 RETIRED Win32/Caypnamer.A RAT CnC Initial Checkin";
    flow:established,to_server;
    content:"|60 55 4a 3f 34 29|"; startswith;
    content:"|ce de 00 0e 19 24 2f|"; endswith; fast_pattern;
    reference:md5,8a295c02f1ed045a371f5ed945fcfa19;
    classtype:trojan-activity;
    sid:2038664; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2022_08_29, deployment Perimeter, former_category MALWARE, malware_family Win32_Caypnamer_A, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_17, reviewed_at 2024_09_17;
)

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