<185>Aug  8 12:15:15 WAFirewall CEF:0|Barracuda|WAF|1210|342|GEO_IP_BLOCK|1|cat=WF dst=154.149.74.104 dpt=443 act=DENY msg=[GeoIP Policy Match] duser="-" src=120.86.21.99 spt=53048 requestMethod=GET app=TLSv1.2 requestContext="-" start=Aug 08 2023 12:15:15  rt=1691514915772  request=/ requestClientApplication="Unknown" dvchost=WAFirewall externalId=189d6254bb2-ecf4dcac cn2=53048 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Forceful Browsing cs4Label=AttackGroup cs5=120.86.21.99 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: 53048
facilitycode: 23
facilitylabel: local7
fqdn: /
localhostname: WAFirewall
localstarttime: 1691514915772 
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', 'barracuda_waf', 'rfc3164', 'ProxyIP:209.97.143.186', 'GEO_IP_BLOCK', 'cef', 'SessionID:-', 'FollowUpAction:NONE']
vendorcode: 342
streamName: barracuda_waf
clientIP: 120.86.21.99
serverIP: 154.149.74.104
userName: -