""ET INFO DYNAMIC_DNS Query to a *.airdns .org Domain""

SID: 2050507

Revision: 2

Class Type: bad-unknown

Metadata: attack_target Client_and_Server, created_at 2024_01_26, deployment Perimeter, performance_impact Low, signature_severity Informational, updated_at 2024_06_11

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: "|06|airdns|03|org|00|"

Within: 7

PCRE:

Special Options:

  • nocase

  • fast_pattern

source