ET EXPLOIT_KIT Possible Keitaro TDS Redirect

Query · suricata

flow:established,from_server;
http.stat_code;
content:"302";
http.header;
content:"LOCATION|3a 20|http"; nocase;
content:"Expires|3a 20|Thu, 21 Jul 1977 07|3a|30|3a|00 GMT|0d 0a|"; fast_pattern;
content:"Cache-Control|3a 20|max-age=0|0d 0a|Pragma|3a 20|no-cache|0d 0a|";
pcre:"/Date\x3a\x20(?P<dstring>[^\r\n]+)\r\n.*?Last-Modified\x3a\x20(?P=dstring)\r\n/s";
http.content_type;
content:"text/html|3b 20|charset=utf-8"; depth:24; endswith;
Raw source ET EXPLOIT_KIT Possible Keitaro TDS Redirect · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT_KIT Possible Keitaro TDS Redirect";
    flow:established,from_server;
    http.stat_code;
    content:"302";
    http.header;
    content:"LOCATION|3a 20|http"; nocase;
    content:"Expires|3a 20|Thu, 21 Jul 1977 07|3a|30|3a|00 GMT|0d 0a|"; fast_pattern;
    content:"Cache-Control|3a 20|max-age=0|0d 0a|Pragma|3a 20|no-cache|0d 0a|";
    pcre:"/Date\x3a\x20(?P<dstring>[^\r\n]+)\r\n.*?Last-Modified\x3a\x20(?P=dstring)\r\n/s";
    http.content_type;
    content:"text/html|3b 20|charset=utf-8"; depth:24; endswith;
    classtype:exploit-kit;
    sid:2022466; rev:7;
    metadata:created_at 2016_01_28, confidence Medium, signature_severity Major, tag TDS, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_05;
)

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