""ET INFO Public Proxy Service Domain in DNS Lookup (89ip .cn)""
SID: 2044500
Revision: 1
Class Type: bad-unknown
Metadata: attack_target Client_Endpoint, created_at 2023_03_07, deployment Perimeter, performance_impact Low, signature_severity Informational, updated_at 2023_03_07, reviewed_at 2023_10_11
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: "|04|89ip|02|cn|00|"
Within: 7
PCRE:
Special Options:
-
nocase
-
fast_pattern