<185>Oct 24 04:17:36 WAFirewall CEF:0|Barracuda|WAF|1101|342|GEO_IP_BLOCK|1|cat=WF dst=157.49.87.1 dpt=443 act=DENY msg=[GeoIP Policy Match] duser="-" src=204.123.8.105 spt=64694 requestMethod=GET app=TLSv1.3 requestContext="-" start=Oct 24 2022 04:17:36  rt=1666603056140  request=/robots.txt requestClientApplication="Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)" dvchost=WAFirewall externalId=18409487bd4-dd999bfb cn2=64694 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Forceful Browsing cs4Label=AttackGroup cs5=204.123.8.105 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:
senderhost: 10.0.0.250
serverport: 443
severitylabel: alert
tags: ['RuleID:global', 'barracuda_waf_GEO_IP_BLOCK', 'RuleType:GLOBAL', 'barracuda_waf', 'rfc3164', 'GEO_IP_BLOCK', 'cef', 'SessionID:-', 'FollowUpAction:NONE', 'AttackGroup:Forceful Browsing', 'ProxyIP:51.222.253.14']
productids: [0]
sourceinfo: unknown
localstarttime: 1666603056140 
sensitivity: normal
localhostname: WAFirewall
priority: 185
facilitylabel: local7
messagetype: GEO_IP_BLOCK
severitycode: 9
fqdn: /robots.txt
clientport: 64694
vendorcode: 342
action: block
facilitycode: 23
streamName: barracuda_waf
clientIP: 204.123.8.105
serverIP: 157.49.87.1
userName: -