ET EXPLOIT_KIT Possible PurpleFox EK Framework Flash GET Request

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".swf"; endswith;
http.host;
content:"rawcdn.githack.com"; fast_pattern; depth:18; endswith;
http.cookie;
content:"__cfduid="; depth:9;
http.header_names;
content:"|0d 0a|Accept|0d 0a|"; depth:10;
content:"|0d 0a|x-flash-version|0d 0a|"; distance:0;
Raw source ET EXPLOIT_KIT Possible PurpleFox EK Framework Flash GET Request · 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 EXPLOIT_KIT Possible PurpleFox EK Framework Flash GET Request";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".swf"; endswith;
    http.host;
    content:"rawcdn.githack.com"; fast_pattern; depth:18; endswith;
    http.cookie;
    content:"__cfduid="; depth:9;
    http.header_names;
    content:"|0d 0a|Accept|0d 0a|"; depth:10;
    content:"|0d 0a|x-flash-version|0d 0a|"; distance:0;
    classtype:exploit-kit;
    sid:2028978; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_11_14, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_21;
)

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