alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Blackhole Exploit Kit Microsoft OpenType Font Exploit"; flow:established,to_client; content:"Content-Description|3A| File Transfer"; http_header; content:"Content-Disposition|3A| attachment|3B| filename=font.eot"; http_header; fast_pattern:33,17; reference:cve,2011-3402; classtype:exploit-kit; sid:2017341; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2013_08_19, deployment Perimeter, malware_family Blackhole, signature_severity Critical, tag Blackhole, tag Exploit_Kit, updated_at 2021_06_23;)