<185>Jul 12 15:19:40 WAFirewall CEF:0|Barracuda|WAF|1220|342|GEO_IP_BLOCK|1|cat=WF dst=110.66.38.78 dpt=443 act=DENY msg=[GeoIP Policy Match] duser="-" src=183.212.24.187 spt=38188 requestMethod=GET app=TLSv1.3 requestContext="-" start=Jul 12 2024 15:19:40  rt=1720815580688  request=/robots.txt requestClientApplication="Mozilla/5.0 (compatible; SemrushBot/7~bl; +http://www.semrush.com/bot.html)" dvchost=WAFirewall externalId=190a899f5f2-8ca49da cn2=38188 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Forceful Browsing cs4Label=AttackGroup cs5=183.212.24.187 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: 38188
facilitycode: 23
facilitylabel: local7
fqdn: /robots.txt
localhostname: WAFirewall
localstarttime: 1720815580688 
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:185.191.171.1', 'barracuda_waf', 'rfc3164', 'GEO_IP_BLOCK', 'cef', 'SessionID:-', 'FollowUpAction:NONE']
vendorcode: 342
streamName: barracuda_waf
clientIP: 183.212.24.187
serverIP: 110.66.38.78
userName: -