alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Possible EXE Download From Suspicious TLD"; flow:established,to_client; file_data; content:"MZ"; within:2; byte_jump:4,58,relative,little; content:"PE|00 00|"; distance:-64; within:4; flowbits:isset,ET.SuspExeTLDs; reference:url,www.spamhaus.org/statistics/tlds/; classtype:misc-activity; sid:2023464; rev:2; metadata:affected_product Any, attack_target Client_and_Server, created_at 2016_10_27, confidence Medium, signature_severity Minor, updated_at 2019_07_26;)