""ET TROJAN CopperStealer - Browser Stealer Exfil via Telegram""

SID: 2037027

Revision: 1

Class Type: trojan-activity

Metadata: created_at 2022_06_17, updated_at 2022_06_17

Reference:

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: "/bot"

  • Value: "/sendDocument"

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

  • Value: ".zip|22 0d 0a|Content-Type: application/x-zip-compressed|0d 0a 0d 0a 37 7a bc af 27 1c|"

  • Value: "Content-Type|3a 20|multipart|2f|form|2d|data|3b 20|boundary|3d 2d 2d 2d 2d|WebKitFormBoundaryovEAlxca0DiIz7tl|0d 0a|"

Within: 85

PCRE: "/\/sendDocument$/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_header

source