alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE PE EXE or DLL Windows file download Text"; flow:established,to_client; file.data; content:"4D5A"; distance:0; byte_jump:8,114,relative,multiplier 2,little,string,hex; content:"50450000"; distance:-126; within:8; classtype:trojan-activity; sid:2021774; rev:3; metadata:created_at 2015_09_15, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_14;)