""ET POLICY Observed IP Lookup Domain (l2 .io in DNS Lookup)""
SID: 2024831
Revision: 1
Class Type: policy-violation
Metadata: attack_target Client_Endpoint, created_at 2017_10_10, deployment Perimeter, signature_severity Informational, updated_at 2017_10_10
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: "|02|l2|02|io|00|"
Within: 7
PCRE:
Special Options:
-
nocase
-
fast_pattern