""ET INFO Observed certreq User-Agent (NDES client)""

SID: 2043274

Revision: 1

Class Type: bad-unknown

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_01_11, deployment Perimeter, signature_severity Informational, updated_at 2023_01_11

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "User-Agent|3a 20|Mozilla/4.0 (compatible|3b 20|Win32|3b 20|NDES client"

Within:

PCRE:

Special Options:

• http_header

source