alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Win32/LNK/Agent.GX Javascript Downloader M1"; flow:established,to_client; http.content_type; content:"application/octet-stream"; file.data; content:"|3c|script language|3d 22|javascript|22 3e|"; startswith; content:"GetObject|28 22|winmgmts|3a 22 2b 22 7b|impersonationLevel=impersonate|7d 22 2b 22|"; fast_pattern; distance:0; content:"ExecQuery|28 22|Select|20 2a 20 22 2b 22|from|20 22 2b 22|Win32|5f 22 2b 22|Process|22 29 3b|"; distance:0; reference:md5,4b9eb054d9f7f5dd8c23cc1d7312013c; classtype:trojan-activity; sid:2034359; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_11_08, deployment Perimeter, malware_family Win32_LNK_Agent_GX, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_09;)