""ET TROJAN Qudox CnC Activity""

SID: 2030682

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2020_08_13, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_08_13

Reference:

  • md5

  • 4806ceacf1f9ae4faddbace5201d36f0

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET /gate.php HTTP/1.1|0d 0a|Host|3a 20|" Depth: 30

  • Value: "0WmkD4" Depth: 6

  • Value: !"User-Agent|3a 20|"

  • Value: !"Accept"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+\r\nContent-Length\x3a\x20[^\r\n]+\x0d\x0a\x0d\x0a$/H"

Special Options:

  • http_client_body

  • fast_pattern

  • http_header

source