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Validation disclaimer: TTP overlap, actor similarity, generated summaries, and coverage findings are investigation leads, not attribution proof or operational validation without analyst review.

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T1526 · discovery · 0 actors · 0 correlated reports

Cloud Service Discovery

An adversary may attempt to enumerate the cloud services running on a system after gaining access. These methods can differ from platform-as-a-service (PaaS), to infrastructure-as-a-service (IaaS), or software-as-a-service (SaaS). Many services exist throughout the various cloud providers and can include Continuous Integration and Continuous Delivery (CI/CD), Lambda Functions, Entra ID, etc. They may also include security services, such as AWS GuardDuty and Microsoft Defender for Cloud, and logging services, such as AWS CloudTrail and Google Cloud Audit Logs. Adversaries may attempt to discover information about the services enabled throughout the environment. Azure tools and APIs, such as the Microsoft Graph API and Azure Resource Manager API, can enumerate resources and services, including applications, management groups, resources and policy definitions, and their relationships that are accessible by an identity. For example, Stormspotter is an open source tool for enumerating and constructing a graph for Azure resources and services, and Pacu is an open source AWS exploitation framework that supports several methods for discovering cloud services. Adversaries may use the information gained to shape follow-on behaviors, such as targeting data or credentials from enumerated services or evading identified defenses through Disable or Modify Tools or Disable or Modify Cloud Logs.

Open detection, hunting, mitigation, and evidence workspace

Detection logic

Cloud service discovery techniques will likely occur throughout an operation where an adversary is targeting cloud-based systems and services. Data and events should not be viewed in isolation, but as part of a chain of behavior that could lead to other activities based on the information obtained. Normal, benign system and network events that look like cloud service discovery may be uncommon, depending on the environment and how they are used. Monitor cloud service usage for anomalous behavior that may indicate adversarial presence within the environment.

Observed actors

Correlated CTI and IR reports

Cyber Knowledge context

Use these routes to move from the ATT&CK behavior into explanation, implementation, evidence handling, validation, and defensive operations. Relevance is generated from explicit identifiers/names and governed topic mappings; it is not attribution evidence.

MITRE mitigations

No ATT&CK mitigation relationship is published for this technique. Apply risk-based controls and verify scope.

MITRE detection strategies and analytics

DET0402 · Detection Strategy for Cloud Service Discovery

AN1127 · Analytic 1127 — Unusual enumeration of services and resources through cloud APIs such as AWS CLI `describe-*`, Azure Resource Manager queries, or GCP project listings. Defender perspective includes anomalous API calls, unexpected volume of service enumeration, and correlation of discovery with recently compromised sessions.
AN1128 · Analytic 1128 — Enumeration of directories, applications, or service principals through APIs such as Microsoft Graph or Okta API. Defender perspective includes unexpected listing of users, roles, applications, and abnormal access to identity management endpoints.
AN1129 · Analytic 1129 — Discovery of SaaS services connected to productivity platforms (e.g., Microsoft 365, Google Workspace). Defender perspective includes unexpected enumeration of enabled services, API integrations, or OAuth applications tied to user accounts.
AN1130 · Analytic 1130 — Discovery of connected SaaS applications, APIs, or configurations within platforms like Salesforce, Slack, or Zoom. Defender perspective includes enumeration of available integrations, abnormal querying of service metadata, and follow-on attempts to exploit or persist via discovered services.

MITRE detection source

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