alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Unknown Exploit Kit suspected Blackhole"; flow:established,to_server; content:".js?"; http_uri; fast_pattern; urilen:33<>34; pcre:"/\/\d+\.js\?\d+&[a-f0-9]{16}$/U"; classtype:exploit-kit; sid:2015670; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2012_08_29, deployment Perimeter, malware_family Blackhole, signature_severity Critical, tag Blackhole, tag Exploit_Kit, updated_at 2021_06_23;)