""ET USER_AGENTS Observed Uclient User-Agent""

SID: 2039445

Revision: 1

Class Type: bad-unknown

Metadata: attack_target Client_Endpoint, created_at 2022_10_19, deployment Perimeter, signature_severity Informational, updated_at 2022_10_19

Reference:

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|UClient|20 28|"

Within:

PCRE:

Special Options:

  • fast_pattern

  • http_header

source