![]() TP: If you're able to confirm that the activity was performed from an anonymous or TOR IP address. This detection uses a machine learning algorithm that reduces B-TP incidents, such as mis-tagged IP addresses that are widely used by users in the organization. These proxies can be used to hide a device's IP address and may be used for malicious activities. Activity from anonymous IP addressĪctivity from an IP address that has been identified as an anonymous proxy IP address by Microsoft Threat Intelligence or by your organization. This section describes alerts indicating that a malicious actor may be attempting to gain an initial foothold into your organization. For example, review the following user device information and compare with known device information: Review all user activity for other indicators of compromise and explore the source and scope of impact.If you identify a TP, review all the user's activities to gain an understanding of the impact.This will help you identify which users in your organization pose the greatest risk. Review the user's investigation priority score and compare with the rest of the organization.You should use the following general guidelines when investigating any type of alert to gain a clearer understanding of the potential threat before applying the recommended action. False positive (FP): An alert on a non-malicious activity.Benign true positive (B-TP): An alert on suspicious but not malicious activity, such as a penetration test or other authorized suspicious action.True positive (TP): An alert on a confirmed malicious activity.This guide provides information about investigating and remediating Defender for Cloud Apps alerts in the following categories.įollowing proper investigation, all Defender for Cloud Apps alerts can be classified as one of the following activity types: This additional reference makes it easier to understand the suspected attacks technique potentially in use when a Defender for Cloud Apps alert is triggered. To explain and make it easier to map the relationship between Defender for Cloud Apps alerts and the familiar MITRE ATT&CK Matrix, we've categorized the alerts by their corresponding MITRE ATT&CK tactic. Finally, some alerts may be in preview, so regularly review the official documentation for updated alert status. However, it's important to note that since anomaly detections are non-deterministic by nature, they're only triggered when there's behavior that deviates from the norm. ![]() Included in this guide is general information about the conditions for triggering alerts. The purpose of this guide is to provide you with general and practical information on each alert, to help with your investigation and remediation tasks. Microsoft Defender for Cloud Apps provides security detections and alerts for malicious activities. For more information about these changes, see Microsoft Defender for Cloud Apps in Microsoft 365 Defender. Microsoft 365 Defender will be the home for monitoring and managing security across your Microsoft identities, data, devices, apps, and infrastructure. This will simplify workflows, and add the functionality of the other Microsoft 365 Defender services. The Microsoft 365 Defender portal allows security admins to perform their security tasks in one location. Microsoft Defender for Cloud Apps (previously known as Microsoft Cloud App Security) is now part of Microsoft 365 Defender. ![]()
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