""ET WEB_CLIENT Great Cannon DDoS JS M4""

SID: 2027964

Revision: 3

Class Type: attempted-dos

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2019_09_06, deployment Perimeter, signature_severity Minor, updated_at 2019_09_09

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "var _a|3d 22|" Depth: 8

  • Value: "|22 2c|_b|3d 22|"

  • Value: "|22 2c|_c|3d 22|"

  • Value: "|22 3b|eval|28|function|28 5f 2c|"

  • Value: "|29 7b|if|28|n|3d|function|28 5f 29 7b|return|28 5f|"

Within: 27

PCRE:

Special Options:

  • http_stat_code

  • file_data

  • fast_pattern

source