ET MALWARE Gameredon Loader Activity

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".html"; endswith;
http.user_agent;
content:"Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36 OPR/54.0.2952.64|3a 3a|"; startswith; fast_pattern;
content:"|3a 3a|"; distance:2; endswith;
Raw source ET MALWARE Gameredon Loader Activity · Suricata
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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 Gameredon Loader Activity";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".html"; endswith;
    http.user_agent;
    content:"Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36 OPR/54.0.2952.64|3a 3a|"; startswith; fast_pattern;
    content:"|3a 3a|"; distance:2; endswith;
    reference:url,blog.talosintelligence.com/2021/02/gamaredonactivities.html;
    reference:md5,04490fb43c9adbfdee9d7918e3db0af5;
    classtype:trojan-activity;
    sid:2031676; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_02_26, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_02_26;
)

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