alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT EITest SocEng Inject Jan 15 2017 EXE Download"; flow:established,from_server; http.header; content:"Font_Update.exe"; nocase; fast_pattern; pcre:"/^Content-Disposition\x3a[^\r\n]+filename\s*=\s*[\x22\x27]?Font_Update\.exe/mi"; reference:url,www.proofpoint.com/us/threat-insight/post/EITest-Nabbing-Chrome-Users-Chrome-Font-Social-Engineering-Scheme; reference:url,blog.brillantit.com/exposing-eitest-campaign; classtype:social-engineering; sid:2023817; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2017_01_31, deployment Perimeter, performance_impact Low, signature_severity Major, tag Redirector, updated_at 2020_10_08;)