LoFP LoFP / T1110.004

T1110.004

TitleTags
a source ip failing to authenticate with multiple users in a short period of time is not common legitimate behavior.
a source ip failing to authenticate with multiple users is not a common for legitimate behavior.
an ip address with more than 20 failed authentication attempts in the span of 5 minutes may also be triggered by a broken application.
in environments where multiple users legitimately access crushftp from behind the same nat or proxy, this may generate false positives. tune the threshold based on your organization's usage patterns.
no known false positives for this detection. please review this alert
no known false postives for this detection. please review this alert
this detection may yield false positives in scenarios where legitimate bulk sign-in activities occur, such as during company-wide system updates or when users are accessing resources from varying locations in a short time frame, such as in the case of vpns or cloud services that rotate ip addresses. filter as needed.
vulnerability scanners or system administration tools may also trigger this detection. filter as needed.