""ET TROJAN TyphonStealer Exfil via AnonFiles (POST)""

SID: 2044967

Revision: 1

Class Type: trojan-activity

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, signature_severity Major, updated_at 2023_04_17

Reference:

  • md5

  • 8581eae9949adfdce9a7bf6ae5ae0141

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/upload"

  • Value: "Host|3a 20|api.anonfiles.com|0d 0a|"

  • Value: "Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|"

  • Value: "|00 24 00|HardwareDetails.txt"

  • Value: "|00 24 00|NetworkInformation.txt"

  • Value: "|00 24 00|Screenshot.jpg"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • http_client_body

  • http_client_body

source