""ET INFO Possible Telegram Proxy Site (sendDocument)""

SID: 2044621

Revision: 1

Class Type: unknown

Metadata: created_at 2023_03_14, deployment Perimeter, deployment SSLDecrypt, signature_severity Informational, updated_at 2023_03_15

Reference:

  • md5

  • 3402c9373726396598011ef6ec1ea243

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "/sendDocument?chat_id="

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

Within:

PCRE:

Special Options:

  • http_uri

  • fast_pattern

  • http_header

source