""ET TROJAN Earth Preta PUBLOAD Activity M3""

SID: 2050512

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, created_at 2024_01_26, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_01_26

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "If-None-Match|3a 20 22|"

  • Value: "User-Agent|3a 20|Microsoft-CryptoAPI/6.1"

  • Value: "FwMD" Depth: 4

  • Value: "POST /msdownload/update/v3/static/trustedr/en/" Depth: 46

Within:

PCRE: "/^[A-Za-z0-9]{25}/R"

Special Options:

  • http_header

  • http_header

  • http_client_body

  • fast_pattern

source