<185>Oct  6 00:35:08 WAFirewall CEF:0|Barracuda|WAF|1101|342|GEO_IP_BLOCK|1|cat=WF dst=73.9.60.107 dpt=443 act=DENY msg=[Known Http Attack Source] duser="-" src=13.53.238.68 spt=40528 requestMethod=GET app=TLSv1.2 requestContext="-" start=Oct 06 2022 00:35:08  rt=1665034508816  request=/ requestClientApplication="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36 " dvchost=WAFirewall externalId=183abca5a10-ea86047c cn2=40528 cn2Label=ProxyPort cs1=global cs1Label=RuleID cs2=NONE cs2Label=FollowUpAction cs3=GLOBAL cs3Label=RuleType cs4=Forceful Browsing cs4Label=AttackGroup cs5=13.53.238.68 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', 'AttackGroup:Forceful Browsing', 'RuleType:GLOBAL', 'ProxyIP:128.1.248.42', 'barracuda_waf', 'rfc3164', 'GEO_IP_BLOCK', 'cef', 'SessionID:-', 'FollowUpAction:NONE']
productids: [0]
sourceinfo: unknown
localstarttime: 1665034508816 
sensitivity: normal
localhostname: WAFirewall
priority: 185
facilitylabel: local7
messagetype: GEO_IP_BLOCK
severitycode: 9
fqdn: /
clientport: 40528
vendorcode: 342
action: block
facilitycode: 23
streamName: barracuda_waf
clientIP: 13.53.238.68
serverIP: 73.9.60.107
userName: -