""ET TROJAN Possible Charming Kitten Backdoor CnC Activity""

SID: 2029495

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_02_19, deployment Perimeter, signature_severity Major, updated_at 2020_02_19

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: "User-Agent|3a 20|WinHTTP Example/1.0|0d 0a|"

  • Value: "server_module_name="

  • Value: "&server_task"

  • Value: "&systemtype="

Within:

PCRE:

Special Options:

  • http_method

  • http_header

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

source