alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Evil Redirector Leading to EK Jul 29"; flow:established,to_server; urilen:214; http.uri; content:"Lzc1MTZmZDQzYWRhYTVl"; fast_pattern; content:"=="; distance:54; http.host; pcre:"/^a[a-z]{10}\.[a-z]{5}\./"; classtype:exploit-kit; sid:2021559; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2015_07_31, deployment Perimeter, confidence High, signature_severity Major, tag Redirector, updated_at 2024_03_16;)