<172>Feb 13 2023 02:31:56: %ASA-4-106023: Deny tcp src inside:158.130.59.231/56949 dst outside:141.15.208.219/443 by access-group "inside_access_in" [0x0, 0x0]

This is a syslog message from a product called ASA Firewall by Cisco. The following fields were extracted from the message:
priority: 172
senderhost: 10.45.128.1
serverport: 443
severitylabel: warning
tags: ['cisco_asa_deny', 'deny', 'cisco_asa', 'firewall_action']
productids: [17, 0]
severitycode: 4
sourceinfo: unknown
sensitivity: normal
facilitylabel: local5
messagetype: firewall_action
clientport: 56949
vendorcode: ASA-4-106023
action: block
protocol: 6
facilitycode: 21
streamName: cisco_asa
clientIP: 158.130.59.231
serverIP: 141.15.208.219