ET MALWARE MICROPSIA HTTP Failover CnC Checkin

Query · suricata

flow:established,to_server;
threshold:type limit, count 1, seconds 30, track by_dst;
http.method;
content:"POST";
http.uri;
content:"/api/hazard/"; depth:12; fast_pattern;
http.user_agent;
content:"compatible|3b 20|Googlebot|2f|";
http.accept_enc;
content:"UTF8"; depth:4; endswith;
http.content_type;
content:"multipart|2f|form-data|3b 20|boundary|3d 2d 2d 2d 2d 2d 2d 2d|Embt-Boundary";
Raw source ET MALWARE MICROPSIA HTTP Failover CnC Checkin · 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 MALWARE MICROPSIA HTTP Failover CnC Checkin";
    flow:established,to_server;
    threshold:type limit, count 1, seconds 30, track by_dst;
    http.method;
    content:"POST";
    http.uri;
    content:"/api/hazard/"; depth:12; fast_pattern;
    http.user_agent;
    content:"compatible|3b 20|Googlebot|2f|";
    http.accept_enc;
    content:"UTF8"; depth:4; endswith;
    http.content_type;
    content:"multipart|2f|form-data|3b 20|boundary|3d 2d 2d 2d 2d 2d 2d 2d|Embt-Boundary";
    reference:md5,6eff53e85a9ce9f1d99c812270093581;
    reference:url,twitter.com/ClearskySec/status/1054722167433297920;
    classtype:command-and-control;
    sid:2026547; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_24, deployment Perimeter, malware_family MICROPSIA, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2020_09_16;
)

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