""ET TROJAN MOONSTONE SLEET APT Payload Delivery Attempt""

SID: 2054939

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_and_Server, tls_state plaintext, created_at 2024_08_06, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_08_06

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: "/user/user.asp?id|3d|" Depth: 18

Within:

PCRE: "/\x2fuser\x2fuser.asp\?id\x3d[A-Z0-9]{6,7}$/U"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

source