<185>Jul 15 13:19:33 WAFirewall CEF:0|Barracuda|WAF|1210|342|GEO_IP_BLOCK|1|cat=WF dst=23.230.102.161 dpt=443 act=DENY msg=[GeoIP Policy Match] duser="-" src=139.28.44.42 spt=59515 requestMethod=HEAD app=TLSv1.2 requestContext=https://12.166.83.91:443/global-protect/login.esp start=Jul 15 2023 13:19:33  rt=1689445173444  request=/global-protect/login.esp requestClientApplication="Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)" dvchost=WAFirewall externalId=1895ac788b5-deb8604b cn2=59515 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Forceful Browsing cs4Label=AttackGroup cs5=139.28.44.42 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: 59515
facilitycode: 23
facilitylabel: local7
fqdn: /global-protect/login.esp
localhostname: WAFirewall
localstarttime: 1689445173444 
messagetype: GEO_IP_BLOCK
priority: 185
senderhost: 10.0.0.250
sensitivity: normal
serverport: 443
severitycode: 9
severitylabel: alert
sourceinfo: unknown
tags: ['barracuda_waf_GEO_IP_BLOCK', 'AttackGroup:Forceful Browsing', 'RuleType:GLOBAL', 'barracuda_waf', 'rfc3164', 'GEO_IP_BLOCK', 'cef', 'SessionID:-', 'FollowUpAction:NONE', 'ProxyIP:194.26.192.17', 'RuleID:global']
vendorcode: 342
streamName: barracuda_waf
clientIP: 139.28.44.42
serverIP: 23.230.102.161
userName: -