alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Blackhole - Landing Page Requested - /*.php?*=16HexChar"; flow:established,to_server; flowbits:set,ET.http.driveby.blackhole.uri; flowbits:noalert; urilen:23<>60; content:".php?"; http_uri; content:"="; within:8; http_uri; pcre:"/\?[a-z]{1,10}=[a-f0-9]{16}$/U"; pcre:"/[0-9]{1,16}[a-f]{1,16}[0-9]{1,16}$/U"; classtype:trojan-activity; sid:2014973; rev:18; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2012_06_27, deployment Perimeter, malware_family Blackhole, signature_severity Critical, tag Blackhole, tag Exploit_Kit, updated_at 2019_07_26;)