alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED Possible Angler EK Landing URI Struct June 13 M1"; flow:established,to_server; urilen:27<>114; content:"/index.php?"; depth:11; http_uri; pcre:"/^\/index\.php\?[a-z]{8,80}=(?:\d{10,13}|\d{15,20})$/U"; pcre:"/Referer\x3a\x20http\x3a\x2f+(?P<refhost>[^\x3a\x2f\r\n]+).*?\r\nHost\x3a\x20(?!(?P=refhost))/Hsi"; classtype:exploit-kit; sid:2021263; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2015_06_13, deployment Perimeter, malware_family Angler, signature_severity Critical, tag Angler, tag Exploit_Kit, updated_at 2019_07_26;)