Modify Cloud Compute Infrastructure: Удаление облачного экземпляра
Other sub-techniques of Modify Cloud Compute Infrastructure (4)
An adversary may delete a cloud instance after they have performed malicious activities in an attempt to evade detection and remove evidence of their presence. Deleting an instance or virtual machine can remove valuable forensic artifacts and other evidence of suspicious behavior if the instance is not recoverable. An adversary may also Create Cloud Instance and later terminate the instance after achieving their objectives.(Citation: Mandiant M-Trends 2020)
Примеры процедур |
|
| Название | Описание |
|---|---|
| LAPSUS$ |
LAPSUS$ has deleted the target's systems and resources in the cloud to trigger the organization's incident and crisis response process.(Citation: MSTIC DEV-0537 Mar 2022) |
Контрмеры |
|
| Контрмера | Описание |
|---|---|
| User Account Management |
Manage the creation, modification, use, and permissions associated to user accounts. |
| Audit |
Perform audits or scans of systems, permissions, insecure software, insecure configurations, etc. to identify potential weaknesses. |
Обнаружение
The deletion of a new instance or virtual machine is a common part of operations within many cloud environments. Events should then not be viewed in isolation, but as part of a chain of behavior that could lead to other activities. For example, detecting a sequence of events such as the creation of an instance, mounting of a snapshot to that instance, and deletion of that instance by a new user account may indicate suspicious activity.
In AWS, CloudTrail logs capture the deletion of an instance in the TerminateInstances event, and in Azure the deletion of a VM may be captured in Azure activity logs.(Citation: AWS CloudTrail Search)(Citation: Azure Activity Logs) Google's Admin Activity audit logs within their Cloud Audit logs can be used to detect the usage of gcloud compute instances delete to delete a VM.(Citation: Cloud Audit Logs)
Ссылки
- Google. (n.d.). Audit Logs. Retrieved June 1, 2020.
- Microsoft. (n.d.). View Azure activity logs. Retrieved June 17, 2020.
- Amazon. (n.d.). Search CloudTrail logs for API calls to EC2 Instances. Retrieved June 17, 2020.
- Mandiant. (2020, February). M-Trends 2020. Retrieved April 24, 2020.
- MSTIC, DART, M365 Defender. (2022, March 24). DEV-0537 Criminal Actor Targeting Organizations for Data Exfiltration and Destruction. Retrieved May 17, 2022.
Связанные риски
Каталоги
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