""ET INFO DYNAMIC_DNS Query to *.autoddns .com Domain""

SID: 2027299

Revision: 4

Class Type: bad-unknown

Metadata: attack_target Client_and_Server, created_at 2019_04_30, deployment Perimeter, performance_impact Low, signature_severity Informational, tag DynamicDNS, updated_at 2023_04_28, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1568, mitre_technique_name Dynamic_Resolution

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: "|08|autoddns|03|com|00|"

Within: 7

PCRE:

Special Options:

  • fast_pattern

  • nocase

source