alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Evil Redirector Leading to EK Sept 25 2015"; flow:established,to_client; file.data; content:"<div style="; pcre:"/^(?:(?!<\/div).)+?top\x3a\s*?\x2d[0-9]+px\x3b.+left\x3a\s*?\x2d[0-9]+px\x3b.+<iframe\x20.+?stack=\d+/Rsi"; content:"absolute|3b|"; content:"<iframe src="; distance:0; content:" stack="; fast_pattern; classtype:exploit-kit; sid:2021841; rev:6; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2015_09_25, deployment Perimeter, confidence High, signature_severity Major, tag Redirector, updated_at 2024_04_06;)