<185>Oct 27 02:38:13 WAFirewall CEF:0|Barracuda|WAF|1210|119|MALFORMED_VERSION|1|cat=WF dst=245.126.114.79 dpt=443 act=DENY msg=[PRI * HTTP/2.0] duser="-" src=109.242.192.165 spt=33202 requestMethod=PRI app=TLSv1.3 requestContext="-" start=Oct 27 2023 02:38:13  rt=1698392293809  request=/* requestClientApplication="Unknown" dvchost=WAFirewall externalId=18b7011c1b1-1a72ad2f cn2=33202 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Protocol Violations cs4Label=AttackGroup cs5=109.242.192.165 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: 33202
facilitycode: 23
facilitylabel: local7
fqdn: /*
localhostname: WAFirewall
localstarttime: 1698392293809 
messagetype: MALFORMED_VERSION
priority: 185
senderhost: 10.0.0.250
sensitivity: normal
serverport: 443
severitycode: 9
severitylabel: alert
sourceinfo: unknown
tags: ['ProxyIP:167.94.145.55', 'RuleID:global', 'barracuda_waf_MALFORMED_VERSION', 'RuleType:GLOBAL', 'barracuda_waf', 'rfc3164', 'cef', 'SessionID:-', 'AttackGroup:Protocol Violations', 'FollowUpAction:NONE', 'MALFORMED_VERSION']
vendorcode: 119
streamName: barracuda_waf
clientIP: 109.242.192.165
serverIP: 245.126.114.79
userName: -