ET MALWARE GCleaner Downloader Activity M3

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?pub=mix";
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.user_agent;
content:"HALF"; bsize:4; fast_pattern;
Raw source ET MALWARE GCleaner Downloader Activity M3 · 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 GCleaner Downloader Activity M3";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?pub=mix";
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.user_agent;
    content:"HALF"; bsize:4; fast_pattern;
    reference:md5,ff4ae9d00058d3e9d5034d043387c4be;
    reference:url,medium.com/csis-techblog/gcleaner-garbage-provider-since-2019-2708e7c87a8a;
    classtype:trojan-activity;
    sid:2032351; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_03_30, deployment Perimeter, malware_family GCleaner, performance_impact Low, confidence High, signature_severity Major, tag Downloader, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_31;
)

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