<180>Feb 24 2024 02:03:36: %ASA-4-106023: Deny tcp src outside:2.201.64.147/49376 dst DMZ:57.246.140.248/4018 by access-group "outside_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:
action: block
clientport: 49376
facilitycode: 22
facilitylabel: local6
messagetype: firewall_action
priority: 180
protocol: 6
senderhost: 172.20.1.1
sensitivity: normal
serverport: 4018
severitycode: 4
severitylabel: warning
sourceinfo: unknown
tags: ['cisco_asa_deny', 'deny', 'cisco_asa', 'firewall_action']
vendorcode: ASA-4-106023
streamName: cisco_asa
clientIP: 2.201.64.147
serverIP: 57.246.140.248