""ET INFO DNS Query to .onion proxy Domain (onion.link)""

SID: 2022332

Revision: 7

Class Type: misc-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2016_01_05, deployment Perimeter, signature_severity Informational, tag DNS_Onion_Query, updated_at 2023_06_23

Reference:

• Link

Protocol: udp

Source Network: $HOME_NET

Source Port: any

Destination Network: any

Destination Port: 53

Flow:

Contents:

• Value: "|01|" Depth: 1 Offset: 2

• Value: "|00 01 00 00 00 00 00|"

• Value: "|05|onion|04|link|00|"

Within: 7

PCRE:

Special Options:

• nocase

source