ET EXPLOIT_KIT Magnitude EK JSE

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
http.header;
content:"X-UA-Compatible|3a 20|IE=EmulateIE8|0d 0a|";
file_data;
content:"|3c 21|DOCTYPE html|3e 3c|html|3e 3c|head|3e 3c|script language|3d 22|JScript.Encode|22 3e 23 40 7e 5e|"; startswith; fast_pattern;
pcre:"/^[^<]+\x0d\x0a<\/script>/R";
content:"|3c 2f|head|3e 3c|body|3e 3c 2f|body|3e 3c 2f|html|3e|"; endswith;
Raw source ET EXPLOIT_KIT Magnitude EK JSE · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT_KIT Magnitude EK JSE";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.header;
    content:"X-UA-Compatible|3a 20|IE=EmulateIE8|0d 0a|";
    file_data;
    content:"|3c 21|DOCTYPE html|3e 3c|html|3e 3c|head|3e 3c|script language|3d 22|JScript.Encode|22 3e 23 40 7e 5e|"; startswith; fast_pattern;
    pcre:"/^[^<]+\x0d\x0a<\/script>/R";
    content:"|3c 2f|head|3e 3c|body|3e 3c 2f|body|3e 3c 2f|html|3e|"; endswith;
    reference:url,www.malware-traffic-analysis.net/2020/03/02/index.html;
    classtype:exploit-kit;
    sid:2029582; rev:2;
    metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_03_05, deployment Perimeter, performance_impact Moderate, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_24;
)

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