alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET EXPLOIT_KIT KaiXin Exploit Kit Landing Page NOP String";
flow:established,to_client;
file_data;
content:" == -1 {|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0|5c|x5C0"; distance:0;
reference:url,ondailybasis.com/blog/?p=1610;
classtype:exploit-kit;
sid:2015881; rev:3;
metadata:created_at 2012_11_14, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;
)