alert http1 $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Arkei/Vidar/Mars Stealer Variant"; flow:established,to_server; http.request_line; bsize:15; content:"POST / HTTP/1.1"; http.content_type; content:"multipart/form-data|3b 20|boundary="; startswith; http.request_body; content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|profile|22|"; content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|profile_id|22|"; fast_pattern; distance:0; content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|hwid|22|"; distance:0; content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|file|22|"; distance:0; reference:url,twitter.com/James_inthe_box/status/1517238542434414592; reference:md5,21e2215738a8e9c9d1ed1e1f66cff10e; classtype:trojan-activity; sid:2036316; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_21, deployment Perimeter, malware_family Arkei, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_03, reviewed_at 2024_12_02;)