ET MALWARE MSIL/Agent.TRM Checkin Response

Query · suricata

flow:established,to_client;
http.stat_code;
content:"201";
http.start;
content:"|0d 0a|Set-Cookie|3a 20|dkv="; fast_pattern;
http.cookie; bsize:36;
content:"dkv="; startswith;
pcre:"/^[a-f0-9]{32}$/R";
Raw source ET MALWARE MSIL/Agent.TRM Checkin Response · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE MSIL/Agent.TRM Checkin Response";
    flow:established,to_client;
    http.stat_code;
    content:"201";
    http.start;
    content:"|0d 0a|Set-Cookie|3a 20|dkv="; fast_pattern;
    http.cookie; bsize:36;
    content:"dkv="; startswith;
    pcre:"/^[a-f0-9]{32}$/R";
    reference:url,twitter.com/w3ndige/status/1247547923845578755;
    reference:md5,d2b81c4f5d075daa681f823cc9a5e4c0;
    classtype:command-and-control;
    sid:2029853; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_04_09, deployment Perimeter, deployment SSLDecrypt, malware_family MSIL_Agent_TRM, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_09;
)

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