alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Win32/LNK/Agent.GX Javascript Downloader M2"; flow:established,to_client; http.content_type; content:"application/octet-stream"; file.data; content:"|3c|script language|3d 22|javascript|22 3e|"; startswith; content:"|3d 22|Explore|22 3b|"; distance:0; content:"|22|W|22 2b 22|scr"; distance:0; content:"|2b 22|ipt|22 2b 22 2e|S|22 3b|"; distance:0; content:"|3d 22|aHR0cHM6Ly9kb2NzLmdvb2dsZS5jb20vc3ByZWFkc2hlZXRzL2Qv"; distance:0; fast_pattern; reference:md5,4b9eb054d9f7f5dd8c23cc1d7312013c; classtype:trojan-activity; sid:2034360; 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 High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_09;)