""ET INFO Observed Dynamic DNS Domain ( .giswebservice .com) in TLS SNI""
SID: 2053713
Revision: 1
Class Type: misc-activity
Metadata: affected_product Any, affected_product IoT, attack_target Client_Endpoint, created_at 2024_06_18, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_06_18
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|"
-
Value: "|00|"
-
Value: ".giswebservice.com"
Within: 1
PCRE: "/^(?:\x00\x12|.\x2e).giswebservice.com/R"
Special Options: