alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE TyphonStealer Exfil via AnonFiles (POST)"; flow:established,to_server; urilen:7; http.method; content:"POST"; http.uri; content:"/upload"; http.host; content:"api.anonfiles.com"; http.request_body; content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|"; content:"|00 24 00|HardwareDetails.txt"; fast_pattern:1,20; content:"|00 24 00|NetworkInformation.txt"; content:"|00 24 00|Screenshot.jpg"; reference:url,twitter.com/suyog41/status/1647937033933914113; reference:md5,8581eae9949adfdce9a7bf6ae5ae0141; classtype:trojan-activity; sid:2044967; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_17, deployment Perimeter, deployment SSLDecrypt, malware_family TyphoonStealer, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_17;)