""ET USER_AGENTS Observed Suspicious UA (Client)""
SID: 2028912
Revision: 2
Class Type: bad-unknown
Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2019_10_28, deployment Perimeter, signature_severity Informational, updated_at 2019_10_28
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|Client|0d 0a|"
Within:
PCRE:
Special Options:
-
http_header
-
fast_pattern