""ET WEB_CLIENT Generic Webshell Accessed on External Compromised Server""

SID: 2032519

Revision: 2

Class Type: web-application-attack

Metadata: affected_product Web_Server_Applications, attack_target Web_Server, created_at 2021_04_06, deployment Perimeter, signature_severity Major, updated_at 2021_04_06

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "

    IDBTE4M CODE 87


    [uname] Linux"

Within:

PCRE:

Special Options:

  • file_data

  • nocase

  • fast_pattern

source