<185>Jul  5 10:07:50 WAFirewall CEF:0|Barracuda|WAF|1210|342|GEO_IP_BLOCK|1|cat=WF dst=249.66.244.130 dpt=443 act=DENY msg=[GeoIP Policy Match] duser="-" src=10.188.232.0 spt=48972 requestMethod=GET app=TLSv1.3 requestContext="-" start=Jul 05 2023 10:07:50  rt=1688569670341  request=/robots.txt requestClientApplication="Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)" dvchost=WAFirewall externalId=18926986aa9-dc5ece4 cn2=48972 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Forceful Browsing cs4Label=AttackGroup cs5=10.188.232.0 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: 48972
facilitycode: 23
facilitylabel: local7
fqdn: /robots.txt
localhostname: WAFirewall
localstarttime: 1688569670341 
messagetype: GEO_IP_BLOCK
priority: 185
senderhost: 10.0.0.250
sensitivity: normal
serverport: 443
severitycode: 9
severitylabel: alert
sourceinfo: unknown
tags: ['RuleID:global', 'barracuda_waf_GEO_IP_BLOCK', 'AttackGroup:Forceful Browsing', 'RuleType:GLOBAL', 'ProxyIP:51.222.253.17', 'barracuda_waf', 'rfc3164', 'GEO_IP_BLOCK', 'cef', 'SessionID:-', 'FollowUpAction:NONE']
vendorcode: 342
streamName: barracuda_waf
clientIP: 10.188.232.0
serverIP: 249.66.244.130
userName: -