Free Tool: 10.2.4: Audit Invalid Access Attempts

Verify that all invalid access attempts are logged on computers in the CDE


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10.2.4: Audit Invalid Access Attempts   Verify that all invalid access attempts are logged on computers in the CDE

The visibility into who is attempting to login with invalid credentials is critical to detect the password guessing attacks often utilized by malicious parties. Not all invalid logons are indication of attack and it’s often the invalid logon attempt threshold that matters in analyzing invalid logon activity. Section 10.3 also specifies that user ID, type of event (in this case invalid logon), timestamp, status, origination and entity names have to be included with all invalid logon activity log records.

This Action1 query lists logon auditing configuration settings for all managed endpoints and flags endpoints that don’t have auditing of invalid logons enabled.

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10.2.4: Audit Invalid Access Attempts

Related Alerts and Reports:

10.2.1: Audit Individual User Access
    Verify that all individual access to cardholder data is logged on all computers in the CDE
10.2.2: Audit Administrative Activity
    Verify all actions taken with administrative privileges are logged
10.2.3: Audit Access to Audit Trails
    Verify that access to all audit trails is logged on all computers.
10.2.5.a: Audit of Identification and Authentication
    Verify use of identification and authentication mechanisms is logged
10.2.5.b: Audit Elevation of Privileges
    Verify that all elevations of privileges is properly logged on all computers
10.2.5.c: Audit Changes to Administrative Accounts
    Verify that all changes to administrative privileges of users are logged
10.2.6: Audit Initialization, Stopping and Pausing of Audit Logs
    Verify that initialization, stopping and pausing of audit logs are logged
10.2.7: Audit Creation and Deletion of System Objects
    Verify that creation and deletion of system level objects are logged

Find more information on 10.2.4: Audit Invalid Access Attempts at Microsoft TechNet.