ET MALWARE RedGuard Framework Related Request Activity

Query · suricata

flow:established,to_server;
http.user_agent;
content:"Mozilla/5.0 (Windows NT 10.0|3b 20|Win64|3b 20|x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36"; bsize:114;
http.header_names;
content:"|0d 0a|User-Agent|0d 0a|Accept|0d 0a|RedGuard|0d 0a|charset|0d 0a|"; fast_pattern;
Raw source ET MALWARE RedGuard Framework Related Request 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 RedGuard Framework Related Request Activity";
    flow:established,to_server;
    http.user_agent;
    content:"Mozilla/5.0 (Windows NT 10.0|3b 20|Win64|3b 20|x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36"; bsize:114;
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Accept|0d 0a|RedGuard|0d 0a|charset|0d 0a|"; fast_pattern;
    reference:url,github.com/wikiZ/RedGuard;
    classtype:trojan-activity;
    sid:2037927; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_08_04, deployment Perimeter, deployment SSLDecrypt, malware_family RedGuard, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_04;
)

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