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

SID: 2031514

Revision: 2

Class Type: web-application-attack

Metadata: affected_product Web_Server_Applications, attack_target Web_Server, created_at 2021_01_12, deployment Perimeter, signature_severity Major, updated_at 2021_01_12

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: ">EMAIl|3a|"

  • Value: "SUBJECT|3a 20|<input name=|22|assunto|22|"

  • Value: "type=|22|submit|22 20|name=|22|Enoc|22 20|value=|22|FIRE DOWN|22|"

Within:

PCRE:

Special Options:

  • file_data

  • nocase

  • nocase

  • nocase

  • fast_pattern

source