""ET TROJAN Maldoc Activity Sending Windows User Info (GET)""

SID: 2033454

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_07_27, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_07_27

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: "/uralchem/" Depth: 10

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/\/uralchem\/[a-zA-z]{8}./U"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_header

source