alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Office File With Embedded Executable"; flow:established,to_client; file_data; content:"|D0 CF 11 E0 A1 B1 1A E1|"; within:8; content:"MZ"; distance:0; byte_jump:4,58,relative,little; content:"PE|00 00|"; distance:-64; within:4; classtype:trojan-activity; sid:2012684; rev:8; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2011_04_11, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_07_26;)