""ET INFO Tor2Web .onion Proxy Service SSL Cert (2)""
SID: 2016810
Revision: 7
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2013_05_02, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag TOR_Proxy, updated_at 2023_05_25
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: 443
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
-
Value: "|55 04 03|"
-
Value: "*.onion."
Within: 8
PCRE: "/^(?:sh|lu|to)/Rsi"
Special Options:
- nocase