""ET INFO DNS Over HTTPS Domain in DNS Lookup (doh .futa .gg)""
SID: 2053587
Revision: 2
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2024_06_13, deployment Perimeter, signature_severity Informational, tag DoH, updated_at 2024_06_18
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: "|03|doh|04|futa|14|gg|00|"
Within: 7
PCRE:
Special Options:
-
fast_pattern
-
nocase