alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Lucky7 EK IE Exploit"; flow:established,from_server; file_data; content:"<t|3a|ANIMATECOLOR"; nocase; fast_pattern; content:"JTQzJTZmJTZjJTZjJTY1JTYzJTc0JTQ3JTYxJTcyJTYyJTYxJTY3JTY1"; classtype:exploit-kit; sid:2017099; rev:3; metadata:created_at 2013_07_04, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_08;)