""ET INFO Observed URL Shortening Service Domain (fancli .com in TLS SNI)""
SID: 2050689
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2024_02_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_02_02, reviewed_at 2024_05_06
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 0a|fancli.com"
Within: 8
PCRE:
Special Options:
- fast_pattern