""ET INFO External IP Address Lookup Domain in DNS Lookup (reallyfreegeoip .org)""
SID: 2051430
Revision: 1
Class Type: misc-activity
Metadata: affected_product Any, attack_target Client_and_Server, created_at 2024_02_29, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_02_29
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: "|0f|reallyfreegeoip|03|org|00|"
Within: 7
PCRE:
Special Options:
-
fast_pattern
-
nocase