alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Disdain EK Payload Aug 23 2017"; flow:established,from_server; file_data; content:"|30 26 e2 3d 9d f5 5b 16|"; within:8; flowbits:set,ET.DisDain.EK; classtype:exploit-kit; sid:2024608; rev:2; metadata:created_at 2017_08_23, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)