""ET INFO Suspicious HTTP Server Value in Response (ngengx)""
SID: 2049209
Revision: 1
Class Type: misc-activity
Metadata: attack_target Client_Endpoint, created_at 2023_11_15, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Informational, updated_at 2023_11_15
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: any
Destination Network: $HOME_NET
Destination Port: $HTTP_PORTS
Flow: established,to_client
Contents:
- Value: "Server|3a 20|ngengx|0d 0a|"
Within:
PCRE:
Special Options:
-
http_header
-
fast_pattern