ET MALWARE Win32.YordanyanActiveAgent Generic CnC Pattern

Query · suricata

flow:established,to_server;
http.uri;
content:"/rest/v";
content:"/clients/client?"; distance:0;
content:"&agent_id="; distance:0; fast_pattern;
http.user_agent;
content:!"Mozilla";
http.header_names;
content:!"Referer";
content:!"Accept";
Raw source ET MALWARE Win32.YordanyanActiveAgent Generic CnC Pattern · 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 http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32.YordanyanActiveAgent Generic CnC Pattern";
    flow:established,to_server;
    http.uri;
    content:"/rest/v";
    content:"/clients/client?"; distance:0;
    content:"&agent_id="; distance:0; fast_pattern;
    http.user_agent;
    content:!"Mozilla";
    http.header_names;
    content:!"Referer";
    content:!"Accept";
    reference:md5,d71d1ad067c3d4dc9ca74cca76bc9139;
    classtype:command-and-control;
    sid:2026436; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_04, deployment Perimeter, malware_family ActiveAgent, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_02;
)

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