<132>Feb 12 2023 13:21:47 10.121.224.132 : %ASA-4-106100: access-list acl-global denied tcp inside/37.146.208.234(32158) -> outside/48.230.236.66(443) hit-cnt 1 first hit [0x7b71e4d1, 0x0]

This is a syslog message from a product called ASA Firewall by Cisco. The following fields were extracted from the message:
priority: 132
senderhost: 10.121.224.132
serverport: 443
severitylabel: warning
tags: ['cisco_asa_deny', 'deny', 'cisco_asa', 'firewall_action']
productids: [17, 0]
severitycode: 4
sourceinfo: unknown
sensitivity: normal
facilitylabel: local0
messagetype: firewall_action
clientport: 32158
vendorcode: ASA-4-106100
action: block
protocol: 6
facilitycode: 16
streamName: cisco_asa
clientIP: 37.146.208.234
serverIP: 48.230.236.66