""ET INFO DNS Over HTTP Style Request (GET)""

SID: 2048359

Revision: 1

Class Type: misc-activity

Metadata: attack_target Client_Endpoint, created_at 2023_09_29, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Informational, updated_at 2023_09_29, reviewed_at 2023_09_29

Reference:

  • md5

  • 8feb11d15b708736189779ddc51a4a0a

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/resolve?type=" Depth: 14

  • Value: "&short="

  • Value: "&name="

  • Value: !"Referer"

Within: 10

PCRE: "/^Host\x3a\x20\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}\r\n/Hm"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_header

source