""ET INFO External IP Lookup Domain in DNS Lookup (ipwho .is)""
SID: 2037042
Revision: 1
Class Type: bad-unknown
Metadata: attack_target Client_Endpoint, created_at 2022_06_21, deployment Perimeter, signature_severity Informational, updated_at 2022_06_21
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: "|05|ipwho|02|is|00|"
Within: 10
PCRE:
Special Options:
-
nocase
-
fast_pattern