""ET TROJAN Chinotto CnC Activity (command)""

SID: 2034563

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 2021_11_30, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_11_30

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: ".php?"

  • Value: "type=command"

  • Value: "&direction="

  • Value: "id="

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/&direction=(send|receive)/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_header

source