Cloud API

T1059.009

Sub-technique of T1059 Command and Scripting Interpreter.View on attack.mitre.org

About this technique

Adversaries may abuse cloud APIs to execute malicious commands. APIs available in cloud environments provide various functionalities and are a feature-rich method for programmatic access to nearly all aspects of a tenant. These APIs may be utilized through various methods such as command line interpreters (CLIs), in-browser Cloud Shells, PowerShell modules like Azure for PowerShell, or software developer kits (SDKs) available for languages such as Python.

Cloud API functionality may allow for administrative access across all major services in a tenant such as compute, storage, identity and access management (IAM), networking, and security policies.

With proper permissions (often via use of credentials such as Application Access Token and Web Session Cookie), adversaries may abuse cloud APIs to invoke various functions that execute malicious actions. For example, CLI and PowerShell functionality may be accessed through binaries installed on cloud-hosted or on-premises hosts or accessed through a browser-based cloud shell offered by many cloud platforms (such as AWS, Azure, and GCP). These cloud shells are often a packaged unified environment to use CLI and/or scripting modules hosted as a container in the cloud environment.

Detection rules4

Rules on DetectionCode tagged with T1059.009.

Sigma3

Splunk1

RuleTypeRiskData source
Windows SQL Server Extended Procedure DLL Loading HuntHuntingNULLWindows Event Log Application 8128

Groups4

Software2

Campaigns0

None recorded.

Procedure examples6

Groups4

Used byProcedure example
GroupAPT29

APT29 has leveraged the Microsoft Graph API to perform various actions across Azure and M365 environments. They have also utilized AADInternals PowerShell Modules to access the API

GroupShinyHunters

ShinyHunters has used the AWS Command Line Interface (CLI) for operations to include a variety of API calls, such as `ListBuckets`, `CreateBucket` and `DeleteBucket`.

GroupStorm-0501

Storm-0501 has leveraged Cloud CLI to execute commands and exfiltrate data from compromised environments.

GroupTeamTNT

TeamTNT has leveraged AWS CLI to enumerate cloud environments with compromised credentials.

Software2

Used byProcedure example
ToolPacu

Pacu leverages the AWS CLI for its operations.

ToolTruffleHog

TruffleHog has leveraged Cloud CLI in order to enumerate and gather credentials.

References1

  1. Microsoft - Azure PowerShell Open source
    Microsoft. (2014, December 12). Azure/azure-powershell. Retrieved March 24, 2023.

Data from MITRE ATT&CK® (Enterprise). ATT&CK® is a registered trademark of The MITRE Corporation.