""ET TROJAN Tortoiseshell/SysKit CnC Activity""

SID: 2028618

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 2019_09_24, deployment Perimeter, performance_impact Moderate, signature_severity Major, updated_at 2019_09_24

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow:

Contents:

  • Value: "POST"

  • Value: !"&"

  • Value: !"."

  • Value: "ip=" Depth: 3

  • Value: "#"

  • Value: "&os="

  • Value: "#"

  • Value: "&os_name="

  • Value: "#"

  • Value: "&mac="

  • Value: !"Referer|3a|"

  • Value: !"User-Agent|3a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_header

  • http_header

source