ET MALWARE Malicious Browser Installer Checkin (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/metrics/geoip"; fast_pattern; bsize:14;
http.header;
content:"Authorization|3a 20|SIGN|20|";
http.header_names;
content:"|0d 0a|Connection|0d 0a|Date|0d 0a|Pragma|0d 0a|Authorization|0d 0a|Host|0d 0a|";
Raw source ET MALWARE Malicious Browser Installer Checkin (POST) · 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 Malicious Browser Installer Checkin (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/metrics/geoip"; fast_pattern; bsize:14;
    http.header;
    content:"Authorization|3a 20|SIGN|20|";
    http.header_names;
    content:"|0d 0a|Connection|0d 0a|Date|0d 0a|Pragma|0d 0a|Authorization|0d 0a|Host|0d 0a|";
    reference:md5,9aabcababd5b677813589f7154302ee0;
    reference:url,securelist.com/onionpoison-infected-tor-browser-installer-youtube/107627/;
    classtype:command-and-control;
    sid:2039096; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_10_05, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_05;
)

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