<185>Dec 21 03:21:36 WAFirewall CEF:0|Barracuda|WAF|1210|342|GEO_IP_BLOCK|1|cat=WF dst=145.155.218.226 dpt=443 act=DENY msg=[GeoIP Policy Match] duser="-" src=42.87.210.213 spt=47396 requestMethod=GET app=TLSv1.3 requestContext="-" start=Dec 21 2023 03:21:36  rt=1703150496246  request=/.env requestClientApplication="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.129 Safari/537.36" dvchost=WAFirewall externalId=18c8bae29f6-e4c0b5e9 cn2=47396 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Forceful Browsing cs4Label=AttackGroup cs5=42.87.210.213 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: 47396
facilitycode: 23
facilitylabel: local7
fqdn: /.env
localhostname: WAFirewall
localstarttime: 1703150496246 
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:78.153.140.219', 'barracuda_waf', 'rfc3164', 'GEO_IP_BLOCK', 'cef', 'SessionID:-', 'FollowUpAction:NONE']
vendorcode: 342
streamName: barracuda_waf
clientIP: 42.87.210.213
serverIP: 145.155.218.226
userName: -