""ET INFO Observed Telegram Domain (t .me in TLS SNI)""
SID: 2041933
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2022_06_24, deployment Perimeter, performance_impact Low, signature_severity Informational, updated_at 2022_12_07, former_sid 2851827
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 04|t.me"
Within: 8
PCRE:
Special Options:
- fast_pattern