From ed333d33a88455e93cdf1ed8806fd80dc019da9e Mon Sep 17 00:00:00 2001 From: Michael Haag <5632822+MHaggis@users.noreply.github.com> Date: Tue, 11 May 2021 14:17:38 -0600 Subject: [PATCH] Update multiple_users_failing_to_authenticate_from_host_using_kerberos.yml --- ...e_users_failing_to_authenticate_from_host_using_kerberos.yml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/detections/endpoint/multiple_users_failing_to_authenticate_from_host_using_kerberos.yml b/detections/endpoint/multiple_users_failing_to_authenticate_from_host_using_kerberos.yml index f4b731c9fa..e5cf6b75a4 100644 --- a/detections/endpoint/multiple_users_failing_to_authenticate_from_host_using_kerberos.yml +++ b/detections/endpoint/multiple_users_failing_to_authenticate_from_host_using_kerberos.yml @@ -11,7 +11,7 @@ description: 'The following analytic identifies one source endpoint failing to a an adversary performing a Password Spraying attack against an Active Directory environment using Kerberos to obtain initial access or elevate privileges. Event 4771 is generated when the Key Distribution Center fails to issue a Kerberos Ticket Granting Ticket (TGT). Failure code - 0x18 stands for `wrong passowrd provided` (the attempted user is a legitimate domain user).\ + 0x18 stands for `wrong password provided` (the attempted user is a legitimate domain user).\ The detection calculates the standard deviation for each host and leverages the 3-sigma statistical rule to identify an unusual number of users. To customize this analytic,