""ET TROJAN MSIL/Spyware Activity via Telegram (Response)""

SID: 2045614

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_05_08, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_05_08

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "Content-Type|3a 20|application/json|0d 0a|"

  • Value: "|7b 22 6f 6b 22 3a 74 72 75 65 2c 22 72 65 73 75 6c 74 22 3a 7b 22|" Depth: 22

  • Value: "|22 74 65 78 74 22 3a 22 54 68 69 73 20 4e 6f 74 20 52 44 50 22 7d 7d|"

Within:

PCRE:

Special Options:

  • http_stat_code

  • http_header

  • file_data

  • fast_pattern

source