alert tcp any any -> $HOME_NET 445 (msg:"ET POLICY Executable Transfer in SMB"; flow:established,to_server; content:"SMB"; depth:8; content:"MZ"; distance:0; content:"This program "; distance:0; content:"PE|00 00|"; distance:0; classtype:bad-unknown; sid:2027191; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_04_11, deployment Internal, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)