ITM is an open framework - Submit your contributions now.

Insider Threat Matrix™

User and Entity Behavior Analytics (UEBA)

Deploy User and Entity Behavior Analytics (UEBA) solutions designed for cloud environments to monitor and analyze the behavior of users, applications, network devices, servers, and other non-human resources. UEBA systems track normal behavior patterns and detect anomalies that could indicate potential insider events. For instance, they can identify when a user or entity is downloading unusually large volumes of data, accessing an excessive number of resources, or engaging in data transfers that deviate from their usual behavior.

Sections

ID Name Description
ME025Placement

A subject’s placement within an organization shapes their potential to conduct insider activity. Placement refers to the subject’s formal role, business function, or proximity to sensitive operations, intellectual property, or critical decision-making processes. Subjects embedded in trusted positions—such as those in legal, finance, HR, R&D, or IT—often possess inherent insight into internal workflows, organizational vulnerabilities, or confidential information.

 

Strategic placement can grant the subject routine access to privileged systems, classified data, or internal controls that, if exploited, may go undetected for extended periods. Roles that involve oversight responsibilities or authority over process approvals can also allow for policy manipulation, the suppression of alerts, or the facilitation of fraudulent actions.

 

Subjects in these positions may not only have a higher capacity to carry out insider actions but may also be more appealing targets for adversarial recruitment or collusion, given their potential to access and influence high-value organizational assets. The combination of trust, authority, and access tied to their placement makes them uniquely positioned to execute or support malicious activity.

IF002.010Exfiltration via Bring Your Own Device (BYOD)

A subject connects their personal device, under a Bring Your Own Device (BYOD) policy, to organization resources, such as on-premises systems or cloud-based platforms. By leveraging this access, the subject exfiltrates sensitive or confidential data. This unauthorized data transfer can occur through various means, including copying files to the personal device, sending data via email, or using cloud storage services.

AF018.002Environment Tripwires

The subject develops a custom API that monitors specific activities, network traffic, and system changes within the target environment. The API could monitor HTTP/HTTPS requests directed at sensitive endpoints, track modifications to security group settings (such as firewalls or access policies), and identify administrative actions like changes to user accounts, data access requests, or logging configurations.

 

This tripwire API is embedded within various parts of the environment:

  • Cloud Services: It hooks into serverless functions, containers, or virtual machines to monitor access and activity.
  • Applications: It integrates into custom-built web applications to observe access to certain URLs, paths, or endpoints.
  • Infrastructure Services: It monitors cloud management APIs (e.g., AWS, Azure, Google Cloud) for unusual activities indicative of an investigation.

 

Once deployed, the tripwire API continuously monitors network traffic, API calls, and system changes for indicators of an investigation. It looks for:

  • Known Security Tools: Scanning for network traffic signatures from common security tools (like Nessus or nmap) or patterns associated with incident response teams.
  • Unusual Access: Detecting attempts from IP ranges linked to internal security teams or cloud provider security operations centers.
  • System Changes: Watching for actions typical of an investigation, such as new logging mechanisms, alterations to IAM roles, or the activation of cloud monitoring services.

 

The API can use whitelists for expected IP addresses or user accounts, triggering alerts if unexpected access occurs.

 

Upon detecting activity, the API tripwire can take immediate evasive actions:

  • Alert the Subject: It sends covert alerts to an external server controlled by the subject, through an HTTP request, encrypted email, or messaging platform.
  • Suspend Malicious Activity: If integrated into a malicious workflow, the API can halt ongoing data exfiltration or malware processes.
  • Clean Up Evidence: It triggers scripts to delete logs, clear files, or reset system configurations to hinder forensic analysis.
  • Feign Normalcy: It restores access controls and system settings to their default state, masking any signs of unusual activity.
IF023.003Anti-Trust or Anti-Competition

Anti-trust or anti-competition violations occur when a subject engages in practices that unfairly restrict or distort market competition, violating laws designed to protect free market competition. These violations can involve a range of prohibited actions, such as price-fixing, market division, bid-rigging, or the abuse of dominant market position. Such behavior typically aims to reduce competition, manipulate pricing, or create unfair advantages for certain businesses or individuals.

 

Anti-competition violations may involve insiders leveraging their position to engage in anti-competitive practices, often for personal or corporate gain. These violations can result in significant legal and financial penalties, including fines and sanctions, as well as severe reputational damage to the organization involved.

 

Examples of Anti-Trust or Anti-Competition Violations:

 

  • A subject shares sensitive pricing or bidding information between competing companies, enabling coordinated pricing or market manipulation.
  • An insider with knowledge of a merger or acquisition shares details with competitors, leading to coordinated actions that suppress competition.
  • An employee uses confidential market data to form agreements with competitors on market control, stifling competition and violating anti-trust laws.

 

Regulatory Framework:

 

Anti-trust or anti-competition laws are enforced globally by various regulatory bodies. In the United States, the Federal Trade Commission (FTC) and the Department of Justice (DOJ) regulate anti-competitive behavior under the Sherman Act, the Clayton Act, and the Federal Trade Commission Act. In the European Union, the European Commission enforces anti-trust laws under the Treaty on the Functioning of the European Union (TFEU) and the Competition Act.

ME024.002Access to Privileged Groups and Non-User Accounts

A subject with access to privileged groups (e.g., Domain Admins, Enterprise Admins, or Security Groups) or non-user accounts (such as service accounts, application identities, or shared mailboxes) gains elevated control over systems, applications, and sensitive organizational data. Access to these groups or accounts often provides the subject with knowledge of security configurations, user roles, and potentially unmonitored or sensitive activities that occur within the system.

 

Shared mailboxes, in particular, are valuable targets. These mailboxes are often used for group communication across departments or functions, containing sensitive or confidential information, such as internal discussions on financials, strategic plans, or employee data. A subject with access to shared mailboxes can gather intelligence from ongoing conversations, identify targets for further exploitation, or exfiltrate sensitive data without raising immediate suspicion. These mailboxes may also bypass some security filters, as their contents are typically considered routine and may not be closely monitored.

 

Access to privileged accounts and shared mailboxes also allows subjects to escalate privileges, alter system configurations, access secure data repositories, or manipulate security settings, making it easier to both conduct malicious activities and cover their tracks. Moreover, service and application accounts often have broader access rights across systems or environments than typical user accounts and are frequently excluded from standard monitoring protocols, offering potential pathways for undetected exfiltration or malicious action.

 

This elevated access gives subjects insight into critical system operations and internal communications, such as unencrypted data flows or internal vulnerabilities. This knowledge not only heightens their potential for malicious conduct but can also make them a target for external threat actors seeking to exploit this elevated access.

ME024.005Access to Physical Spaces

Subjects with authorized access to sensitive physical spaces—such as secure offices, executive areas, data centers, SCIFs (Sensitive Compartmented Information Facilities), R&D labs, or restricted zones in critical infrastructure—pose an increased insider threat due to their physical proximity to sensitive assets, systems, and information.

 

Such spaces often contain high-value materials or information, including printed sensitive documents, whiteboard plans, authentication devices (e.g., smartcards or tokens), and unattended workstations. A subject with physical presence in these locations may observe confidential conversations, access sensitive output, or physically interact with devices outside of typical security monitoring.

 

This type of access can be leveraged to:

  • Obtain unattended or discarded sensitive information, such as printouts, notes, or credentials left on desks.
  • Observe operational activity or decision-making, gaining insight into projects, personnel, or internal dynamics.
  • Access unlocked devices or improperly secured terminals, allowing direct system interaction or credential harvesting.
  • Bypass digital controls via physical means, such as tailgating into secure spaces or using misappropriated access cards.
  • Covertly install or remove equipment, such as data exfiltration tools, recording devices, or physical implants.
  • Eavesdrop on confidential conversations, either directly or through concealed recording equipment, enabling the collection of sensitive verbal disclosures, strategic discussions, or authentication procedures.

 

Subjects in roles that involve frequent presence in sensitive locations—such as cleaning staff, security personnel, on-site engineers, or facility contractors—may operate outside the scope of standard digital access control and may not be fully visible to security teams focused on network activity.

 

Importantly, individuals with this kind of access are also potential targets for recruitment or coercion by external threat actors seeking insider assistance. The ability to physically access secure environments and passively gather high-value information makes them attractive assets in coordinated attempts to obtain or compromise protected information.

 

The risk is magnified in organizations lacking comprehensive physical access policies, surveillance, or cross-referencing of physical and digital access activity. When unmonitored, physical access can provide a silent pathway to support insider operations without leaving traditional digital footprints.