ET EXPLOIT_KIT Fiesta EK SilverLight Exploit Apr 23 2015

Query · suricata

flow:established,from_server;
http.header;
content:"Content-Disposition|3a 20|inline|3b|";
content:".xap";
pcre:"/Content-Disposition\x3a\x20[^\r\n]+filename=[a-z]{5,8}\d{2,3}\.xap\r\n/m";
file.data;
content:"AppManifest.xaml"; fast_pattern;
Raw source ET EXPLOIT_KIT Fiesta EK SilverLight Exploit Apr 23 2015 · 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 Fiesta EK SilverLight Exploit Apr 23 2015";
    flow:established,from_server;
    http.header;
    content:"Content-Disposition|3a 20|inline|3b|";
    content:".xap";
    pcre:"/Content-Disposition\x3a\x20[^\r\n]+filename=[a-z]{5,8}\d{2,3}\.xap\r\n/m";
    file.data;
    content:"AppManifest.xaml"; fast_pattern;
    classtype:exploit-kit;
    sid:2020982; rev:5;
    metadata:created_at 2015_04_23, confidence High, signature_severity Major, updated_at 2020_09_30;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.