""ET INFO Observed DNS Query to .foo TLD""
SID: 2045758
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2023_05_18, deployment Perimeter, performance_impact Significant, confidence High, signature_severity Informational, updated_at 2023_05_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|foo|00|"
Within: 7
PCRE:
Special Options:
-
fast_pattern
-
nocase