MS.OWA.Brute.Force

description-logoDescription

This indicates an attempt to perform a Brute Force attack against a Microsoft Outlook Web App server.
The attack consists of multiple requests intended to conduct a brute force login or to confirm the existence of usernames, launched at a rate of about 15 times in 1 seconds.

affected-products-logoAffected Products

Microsoft Outlook Web App 2003 server
Microsoft Outlook Web App 2007 server
Microsoft Outlook Web App 2010 server
Microsoft Outlook Web App 2013 server
Microsoft Outlook Web App 2016 server
Microsoft Outlook Web App 2019 server

Impact logoImpact

Impact of a successful attack could vary, with the worse case being a system compromise.

recomended-action-logoRecommended Actions

Adjust the threshold according to your network.
Monitor the traffic from that network for any suspicious activity.

Telemetry logoTelemetry

Coverage

IPS (Regular DB)
IPS (Extended DB)