alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT FlashPack EK Exploit Landing Aug 25 2014"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/msie.php"; fast_pattern; http.request_body; pcre:"/[^=]+?=(?:(?:[46][1-9a-f]|[57][0-9a]|3[0-9]|2d)+?2e)+(?:[46][1-9a-f]|[57][0-9a]|3[0-9]|2d)+\s*?/"; classtype:exploit-kit; sid:2019006; rev:3; metadata:created_at 2014_08_26, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_18;)