""ET TROJAN Suspected TA450 Activity""

SID: 2052911

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_05_28, deployment Perimeter, performance_impact Low, confidence Medium, updated_at 2024_05_28

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: ".ps1"

  • Value: "User-Agent|3a 20|Mozilla/4.0|20 28|compatible|3b 20|MSIE 7.0|3b 20|Windows NT 6.2|3b 20|WOW64|3b 20|Trident/8.0|3b 20|"

Within:

PCRE: "/.ps1$/U"

Special Options:

  • http_method

  • http_uri

  • http_header

source