<185>Oct 27 05:22:23 WAFirewall CEF:0|Barracuda|WAF|1210|118|INVALID_METHOD|1|cat=WF dst=133.1.161.64 dpt=443 act=DENY msg=["-"] duser="-" src=241.2.21.214 spt=38286 requestMethod="-" app=TLSv1.2 requestContext="-" start=Oct 27 2023 05:22:23  rt=1698402143431  request=/ requestClientApplication="Unknown" dvchost=WAFirewall externalId=18b70a80cc7-43b74674 cn2=38286 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Protocol Violations cs4Label=AttackGroup cs5=241.2.21.214 cs5Label=ProxyIP cs6="-" cs6Label=SessionID 

This is a syslog message from a product called Barracuda WAF by Barracuda. The following fields were extracted from the message:
action: block
clientport: 38286
facilitycode: 23
facilitylabel: local7
fqdn: /
localhostname: WAFirewall
localstarttime: 1698402143431 
messagetype: INVALID_METHOD
priority: 185
senderhost: 10.0.0.250
sensitivity: normal
serverport: 443
severitycode: 9
severitylabel: alert
sourceinfo: unknown
tags: ['RuleID:global', 'RuleType:GLOBAL', 'barracuda_waf', 'rfc3164', 'cef', 'SessionID:-', 'FollowUpAction:NONE', 'barracuda_waf_INVALID_METHOD', 'ProxyIP:104.248.130.34', 'AttackGroup:Protocol Violations', 'INVALID_METHOD']
vendorcode: 118
streamName: barracuda_waf
clientIP: 241.2.21.214
serverIP: 133.1.161.64
userName: -