""ET TROJAN IndigoZebra APT xCaon/Textpadx Activity (POST)""

SID: 2033219

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_07_02, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_07_02

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: "/kw.asp"

  • Value: "d=" Depth: 2

  • Value: "&k="

  • Value: "&w="

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/\/kw.asp$/U"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_client_body

  • http_client_body

  • http_client_body

  • http_header

source