""ET TROJAN Win32/ArtraDownloader CnC Activity (GET)""

SID: 2036652

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_04_15, deployment Perimeter, performance_impact Low, updated_at 2021_04_15

Reference:

• md5

• 59b043a913014a1f03258c695b9333af

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: ".php?id="

• Value: "&&user="

• Value: "ZxxZ"

• Value: !"User-Agent|3a 20|"

• Value: !"Referer|3a 20|"

• Value: !"Accept"

Within:

PCRE:

Special Options:

• http_method

• http_uri

• fast_pattern

• http_uri

• http_uri

• http_header

• http_header

• http_header

source