""ET TROJAN Possible Drive DDoS Check-in""

SID: 2017045

Revision: 3

Class Type: trojan-activity

Metadata: created_at 2013_06_22, updated_at 2022_05_03

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "k=" Depth: 2

  • Value: "POST"

  • Value: !"Referer|3a|"

  • Value: "Content-Length|3a 20|17|0d 0a|"

  • Value: "Host|3a|" Depth: 5

Within:

PCRE: "/^k=[0-9]*?[a-z]/P"

Special Options:

  • fast_pattern

  • http_client_body

  • http_method

  • http_header

  • http_header

  • http_header

source