""ET INFO Observed Dynamic DNS Service Domain in TLS SNI (duia .ro)""
SID: 2039615
Revision: 1
Class Type: misc-activity
Metadata: affected_product Any, attack_target Client_and_Server, created_at 2022_11_01, deployment Perimeter, performance_impact Low, signature_severity Informational, tag SSL_Malicious_Cert, updated_at 2022_11_01
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: "duia.ro"
Within: 1
PCRE: "/^(?:\x00\x07|.\x2e)duia.ro/R"
Special Options: