""ET INFO Observed External IP Lookup Domain (ifconfig .es) in TLS SNI""
SID: 2054164
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: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 443
Flow: established,to_server
Contents:
-
Value: "|16|"
-
Value: "|01|"
-
Value: "|00 00 0b|ifconfig.es"
Within: 8
PCRE:
Special Options:
- fast_pattern