""ET TROJAN Win32/ModernLoader Activity (POST)""

SID: 2042188

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 2022_01_20, deployment Perimeter, malware_family ModernLoader, performance_impact Low, confidence High, signature_severity Major, updated_at 2022_12_07, reviewed_at 2023_08_25, former_sid 2850890

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: ".php"

  • Value: "|7b 22|UUID|22 3a 22|" Depth: 9

  • Value: "|22|Net|22 3a 22|"

  • Value: "|22|AntiVirus|22 3a 22|"

  • Value: "|22|Network PCs|22 3a 22|"

Within:

PCRE: "/.php$/U"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

source