""ET INFO External IP Lookup Domain in DNS Lookup (ifconfig .io)""
SID: 2054137
Revision: 1
Class Type: policy-violation
Metadata: affected_product Any, attack_target Client_and_Server, created_at 2024_06_28, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag External_IP_Lookup, updated_at 2024_06_28
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: "|08|ifconfig|02|io|00|"
Within: 13
PCRE:
Special Options:
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fast_pattern
-
nocase