alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED PE EXE Install Windows file download"; flow:established; content:"MZ"; isdataat:76,relative; content:"This program must be "; distance:0; isdataat:140,relative; content:"PE"; distance:0; reference:url,www.program-transformation.org/Transform/PcExeFormat; classtype:policy-violation; sid:2000427; rev:16; metadata:created_at 2010_07_30, signature_severity Unknown, updated_at 2019_07_26;)