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

SID: 2030953

Revision: 2

Class Type: web-application-attack

Metadata: affected_product Web_Server_Applications, attack_target Web_Server, created_at 2020_10_02, deployment Perimeter, signature_severity Major, updated_at 2020_10_02

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

• Value: "WebShellOrb 2.6"

• Value: "Uname:
  User:
  Php:
  Hdd:
  Cwd:"

Within:

PCRE:

Special Options:

• file_data

• nocase

• fast_pattern

• nocase

source