ET MALWARE GCleaner Downloader Activity M5

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?pub=mix"; fast_pattern;
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.user_agent;
content:!"Mozilla";
content:"-"; offset:2; depth:1;
content:"-"; distance:0;
http.header_names;
content:!"Referer";
Raw source ET MALWARE GCleaner Downloader Activity M5 · 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 M5";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?pub=mix"; fast_pattern;
    http.content_type;
    content:"application/x-www-form-urlencoded"; bsize:33;
    http.user_agent;
    content:!"Mozilla";
    content:"-"; offset:2; depth:1;
    content:"-"; distance:0;
    http.header_names;
    content:!"Referer";
    reference:md5,064f0d6900675bed580da1291a566cfa;
    classtype:command-and-control;
    sid:2033995; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_09_21, deployment Perimeter, malware_family GCleaner, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_09_21;
)

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