""ET WEB_CLIENT Great Cannon DDoS JS M2""

SID: 2027962

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" Depth: 6

  • Value: "|27 2c|_b"

  • Value: "|27 2c|_c"

  • Value: "|2c|TASKID|3d|"

  • Value: "|2c|MAGICNUM|3d|"

  • Value: "|2c|EXECNUM|3d|"

  • Value: "|2c|FEEDBACKADDR|3d|"

  • Value: "|5d 3b|if|28 2f|chrome|5c 2f 28 5b 5c|d|5d 2b 29 2f|gi"

  • Value: "|5d 5d 28|window|5b 5f|"

Within: 11

PCRE:

Special Options:

  • http_stat_code

  • file_data

  • fast_pattern

source