Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Likely Evil EXE download from MSXMLHTTP non-exe extension M2"; 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.MS.XMLHTTP.no.exe.request; classtype:trojan-activity; sid:2022053; rev:2; metadata:created_at 2015_11_09, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)