Event ID - 445

Port No445
Service Namemicrosoftds
RFC Doc0
ProtocolTCP
DescriptionUsed by SMB file and print sharing in Windows 2000 and XP[NOTE:This information can be applied to service:-win2kcifs]
Reference LinkPort No:445 Service Name:microsoftds Protocol:TCP
AttackTraffic to port 445 from external sources often indicates an attack. Traffic to port 445 should only occur with systems specifically setup as servers or otherwise providing network services and applications that have a listening component.
Action Firewall port 445 inbound and outbound to prevent attacks.

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