ET USER_AGENTS Suspected Mekotio User-Agent (4M5yC6u4stom5U8se3r)

Query · suricata

flow:established,to_server;
http.user_agent;
content:"4M5yC6u4stom5U8se3r"; bsize:19; fast_pattern;
Raw source ET USER_AGENTS Suspected Mekotio User-Agent (4M5yC6u4stom5U8se3r) · Suricata
Esc
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 USER_AGENTS Suspected Mekotio User-Agent (4M5yC6u4stom5U8se3r)";
    flow:established,to_server;
    http.user_agent;
    content:"4M5yC6u4stom5U8se3r"; bsize:19; fast_pattern;
    reference:url,www.welivesecurity.com/2020/08/13/mekotio-these-arent-the-security-updates-youre-looking-for/;
    classtype:trojan-activity;
    sid:2030722; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_08_21, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_21;
)

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