Cервис управления информационной безопасностью
Cервис управления информационной безопасностью
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MITRE ATT&CK - Technique Cloud Account
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MITRE ATT&CK
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MITRE ATT&CK
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Cloud Account
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SECURITM это SGRC система, ? автоматизирующая процессы в службах информационной безопасности. SECURITM помогает построить и управлять ИСПДн, КИИ, ГИС, СМИБ/СУИБ, банковскими системами защиты.
А еще SECURITM это место для обмена опытом и наработками для служб безопасности.
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Create Account:  Cloud Account

ID Name
.001 Local Account
.002 Domain Account
.003 Cloud Account

Adversaries may create a cloud account to maintain access to victim systems. With a sufficient level of access, such accounts may be used to establish secondary credentialed access that does not require persistent remote access tools to be deployed on the system.(Citation: Microsoft O365 Admin Roles)(Citation: Microsoft Support O365 Add Another Admin, October 2019)(Citation: AWS Create IAM User)(Citation: GCP Create Cloud Identity Users)(Citation: Microsoft Azure AD Users) Adversaries may create accounts that only have access to specific cloud services, which can reduce the chance of detection.

ID: T1136.003
Sub-technique of:  T1136
Tactic(s): Persistence
Platforms: Azure AD, Google Workspace, IaaS, Office 365, SaaS
Data Sources: User Account: User Account Creation
Version: 1.2
Created: 29 Jan 2020
Last Modified: 07 Apr 2022

Procedure Examples
Name Description
APT29

APT29 can create new users through Azure AD.(Citation: MSTIC Nobelium Oct 2021)
LAPSUS$

LAPSUS$ has created global admin accounts in the targeted organization's cloud instances to gain persistence.(Citation: MSTIC DEV-0537 Mar 2022)
AADInternals

AADInternals can create new Azure AD users.(Citation: AADInternals Documentation)

Mitigations
Mitigation Description
Network Segmentation

Architect sections of the network to isolate critical systems, functions, or resources. Use physical and logical segmentation to prevent access to potentially sensitive systems and information. Use a DMZ to contain any internet-facing services that should not be exposed from the internal network. Configure separate virtual private cloud (VPC) instances to isolate critical cloud systems.
Multi-factor Authentication

Use two or more pieces of evidence to authenticate to a system; such as username and password in addition to a token from a physical smart card or token generator.
Privileged Account Management

Manage the creation, modification, use, and permissions associated to privileged accounts, including SYSTEM and root.

Detection

Collect usage logs from cloud user and administrator accounts to identify unusual activity in the creation of new accounts and assignment of roles to those accounts. Monitor for accounts assigned to admin roles that go over a certain threshold of known admins.

References

  1. Microsoft. (n.d.). Add Another Admin. Retrieved October 18, 2019.
  2. Microsoft. (2019, November 11). Add or delete users using Azure Active Directory. Retrieved January 30, 2020.
  3. Google. (n.d.). Create Cloud Identity user accounts. Retrieved January 29, 2020.
  4. AWS. (n.d.). Creating an IAM User in Your AWS Account. Retrieved January 29, 2020.
  5. Ako-Adjei, K., Dickhaus, M., Baumgartner, P., Faigel, D., et. al.. (2019, October 8). About admin roles. Retrieved October 18, 2019.
  6. MSTIC, DART, M365 Defender. (2022, March 24). DEV-0537 Criminal Actor Targeting Organizations for Data Exfiltration and Destruction. Retrieved May 17, 2022.
  7. Microsoft Threat Intelligence Center. (2021, October 25). NOBELIUM targeting delegated administrative privileges to facilitate broader attacks. Retrieved March 25, 2022.
  8. Dr. Nestori Syynimaa. (2018, October 25). AADInternals. Retrieved February 18, 2022.
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