""ET TROJAN EncryptHub Stealer Host Details Exfil via Telegram (POST)""

SID: 2054726

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_07_29, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, updated_at 2024_07_29

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" Depth: 4

  • Value: "/sendMessage"

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

  • Value: "|22|chat|5f|id|22 3a|" Depth: 20

  • Value: "|22|text|22 3a|"

  • Value: "|5b|WORM|5d|"

  • Value: "|5c|nIP|3a|"

  • Value: "|5c|nOS|3a|"

Within:

PCRE: "/\x2fsendMessage$/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_header

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

source