""ET INFO Observed DNS Query to (proxies .black) Web Proxy/Anonymizer Domain/Sub-Domain""

SID: 2041930

Revision: 1

Class Type: misc-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2022_12_06, deployment Perimeter, performance_impact Low, signature_severity Informational, updated_at 2022_12_06

Reference:

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: "|07|proxies|05|black|00|"

Within: 7

PCRE:

Special Options:

  • nocase

  • fast_pattern

source