11/12/2023 0 Comments Splunk uba documentation![]() After several days, the intruder attempted to gain additional privileges for accessing resources. The intruder initiated activity on April 23 by exploring the network system. The following image shows the actions taken by the identified intruder over a span of time: The Threat Anomalies Timeline provides an alternative perspective on the progression of each stage in a lateral movement scenario within your systems. This feature helps you understand the security implications and potential risks associated with the user-device interactions within your environment. The following image shows the Threat Relations panel with example data:īy examining the relationships between the target account/user and the devices, you can gain insights into the types of triggered anomalies that were detected when the target user accessed those devices. ![]() You can also view Threat Relations and see all the devices that have been affected by a specific user. The user-interface displays all 50 devices associated with the various stages of lateral movement. As the intruder's login pattern and device access might differ from their peers, unusual Windows events are detected by the peer group-based security rules. Once the intruder successfully acquires additional access privileges, multiple actions are taken.A regular user cannot traverse an organization with their assigned privileges, so the intruder must escalate their privileges to expand their reach. Subsequently, probing activities and privilege escalation activities are detected.Intruders typically exhibit slower actions during the early stages of lateral movement. After a few days, the model detects an event with a security violation return code.These events generate anomalies categorized as Period with Unusual Windows Security Event Sequences. This event is considered rare as it is not observed among other users. In the initial stage, a suspicious process is observed across multiple users over several days.Lateral Movement progresses through several stages, each following a specific sequence to accomplish an objective: The following image shows the example intruder as they appear in Splunk UBA: The timeline spans from April 6, 2023, to May 1, 2023, with a total duration of 25 days. The following example scenario identifies an intruder. The following image shows an example of the UBA front page and the Latest Threats panel: If no Lateral Movement is listed, no threat has been detected. Last Update: The latest time the model was executed.Detection Date: The most recent date that the threat was triggered.You can then see the details of any Lateral Movement threats including the following information Security configurations, including allow list and deny list processes, are updated to accommodate support for new operating systems.įrom the front page of Splunk UBA open the Latest Threats panel.To reduce false positives, the model compares entity activities with peer groups and with newly integrated security rules.For processes, see Supported processes.For Windows events, see Windows events supported by Lateral movement model.New types of Windows events and processes are now supported.In UBA version 5.3.0, enhancements are available that improve the detection capabilities of the model: The model also captures anomalies related to the lateral movement of users and devices that are critical to the environment, based on watchlists you define.īy default, the model uses 30 days of activity data. This batch model collects internal activity data from various sources such as Active Directory Logs, Firewall, and EndPoint. The Lateral Movement model uses advanced graph computation, sequence analysis, and various anomaly detection algorithms. ![]() Adversaries explore the network laterally until they find what they are looking for, such as a database server, a file server, or an email server. Lateral movement is a common step in a security breach, used as an attempt to access and explore the targeted network. Lateral movement is a technique used by adversaries to enter and control remote systems on a network. ![]()
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