alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Mimikatz x86 Mimidrv.sys Download Over HTTP"; flow:established,to_client; file_data; content:"MZ"; within:2; content:"|a0 00 00 00 24 02 00 00 40 00 00 00|"; distance:0; content:"|b8 00 00 00 6c 02 00 00 40 00 00 00|"; within:16; reference:url,github.com/gentilkiwi/mimikatz; classtype:trojan-activity; sid:2029336; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_29, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_08;)