""ET TROJAN Possible Generic RAT over Telegram API""

SID: 2029323

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_27, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2020_01_27

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "Microsoft"

  • Value: "Windows"

  • Value: "Pass"

  • Value: "|0d 0a|Host|3a 20|api.telegram.org|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • nocase

  • http_uri

  • nocase

  • http_uri

  • http_uri

  • nocase

  • fast_pattern

  • http_header

source