""ET TROJAN Operation Mystery Baby syschk CnC Communication""

SID: 2026614

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 2018_11_15, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2018_11_15

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: !"Referer|3a|"

  • Value: "Content-Type|3a 20|multipart / form-data|3b 20|boundary = -------- 1650502037|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_header

  • http_header

source