""ET TROJAN Win32/Ducktail Exfil Via Telegram CnC Response""

SID: 2045617

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_08, deployment Perimeter, deployment SSLDecrypt, malware_family Ducktail, performance_impact Significant, confidence Medium, signature_severity Major, updated_at 2023_05_09

Reference:

  • md5

  • d3ff692d6e816c72693d07f7b5bd4eca

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|7b 22|ok|22 3a|true|2c 22|result|22 3a 7b 22|" Depth: 22

  • Value: "|2c 22|text|22 3a 22|REQ|7c|"

  • Value: "|7c|HELLO|7c|0|22 7d 7d|"

Within: 12

PCRE: "/^(?:[A-Z0-9]{8})-(?:[A-Z0-9]{4})-(?:[A-Z0-9]{4})-(?:[A-Z0-9]{4})-(?:[A-Z0-9]{12})/R"

Special Options:

  • file_data

  • fast_pattern

source