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Security Guardian

Quest Security Guardian is an Active Directory security tool designed to reduce your attack surface. From a simplified, unified workspace, Security Guardian reduces alert fatigue by prioritizing your most exploitable vulnerabilities and Active Directory configurations that demand attention. The solution spotlights what happened, if you’re exposed, and how to fix the problem.

Protect your critical Tier Zero assets with the ability to:

  • Benchmark current Active Directory configuration against industry best practices
  • Lock down critical objects, including GPOs, from misconfiguration and compromise
  • Stay ahead of threats by continually monitoring for indicators of exposure (IOEs) and indicators of compromise (IOCs)
Mitigate AD threats in 3 easy steps 01:08

Mitigate AD threats in 3 easy steps

Gartner lists Quest as a representative vendor for ITDR in the latest Emerging Tech Impact Radar: Security report

Key Benefits

Reduce Attack Surface

Assess your AD against industry best practices, mitigating vulnerabilities and improving defensive posture.

Simplify AD Security

Remove the knowledge gap barriers of AD with visibility, control and protection of critical assets.

Control AD Configurations

Stay one step ahead of attackers by surfacing and mitigating misconfigurations in your AD.

Avoid Alert Fatigue

Reduce the noise and easily surface high-value alerts, ensuring swift threat response.

Ensure SaaS Flexibility

Experience simple implementation, scalability and cost savings of SaaS deployments.

Reduce your AD attack surface with simplicity and speed.

Securing identity, particularly Active Directory (AD), is essential to maintain business continuity across industries. The consequences of AD downtime are dire, with staggering costs reaching $730K per hour, as reported by Forrester. Plus, when you consider that 80 percent of breaches now involve the use of compromised identities, AD has become a prime target. Quest Security Guardian is an Active Directory security tool that addresses these challenges with comprehensive threat mitigation and secure Active Directory configuration.


AD Security Assessment

AD Security Assessment

Benchmark current Active Directory configuration against pre-defined industry best practices. You’ll have full visibility into IOEs, IOCs and Tier Zero assets. This Active Directory security tool not only helps with threat mitigation, but also attack surface reduction.

Critical Asset Focus in our Active Directory security tool

Critical Asset Focus

Identify and prioritize Tier Zero assets effortlessly, ensuring that your most exploitable components receive the utmost attention. Gain full control over these critical assets, enabling you to modify the Tier Zero list dynamically, so you're always aligned with your organization's evolving needs.
AD Threat Prevention

AD Threat Prevention

Secure critical AD objects from compromise and misconfiguration, including sensitive Group Policy Objects (GPOs). This Active Directory security tool delivers focused reports on object status, as well as the ability to effortlessly revert any unwanted changes to a previous, trusted state.

AD Threat Detection with Active Directory security tool

AD Threat Detection

Stay on top of your threat mitigation goals by using this Active Directory security tool to continuously monitor for IOCs and configuration drifts, ensuring that you'll be well-prepared for a faster response to potential security incidents.

Fast Incident Response with Active Directory security tool

Fast Incident Response

Grasp the who, what, where, how and when of suspicious activities with intelligent and contextual notifications that will help reduce alert fatigue. Seamlessly forward IOEs and IOCs to your SIEM tools, such as Microsoft Sentinel and Splunk, for seamless integration and centralized visibility.
Unified AD Security Workspace

Unified AD Security Workspace

Remove the complexity from AD security and focus on core operations with a friendly user interface that provides visibility into IOEs, IOCs and other security signals seamlessly.

Prysmian Group

Rebuilding an AD object that was improperly modified could take hours, which would impact operation ... the Quest object protection enables us to prevent such issues from arising in the first place.

Allessandro Bottin Global Infrastructure & Operation Manager, Prysmian Group

Large Retail Chain

We've had pen testers come in and be very surprised that they could not get past the Quest object protection.

Enterprise Administrator, Large Retail Chain

Security Guardian FAQs

While Microsoft Defender for Identity (MDI) provides robust security, Security Guardian offers additional specialized features that enhance protection for your Active Directory environment. Security Guardian alerts on specific attacker tools, techniques, and procedures (TTPs) within Active Directory, ensuring comprehensive threat detection. It enforces adherence to Privilege Account Management policies by hindering implicit relationships, especially concerning Tier Zero objects. Security Guardian automatically categorizes these critical objects and monitors any drifts from their known state. Furthermore, Security Guardian proactively identifies, alerts on, and protects critical objects (including GPOs) from setting changes and database attacks. It also retains findings and audit data in compliance with retention requirements, ensuring thorough and compliant security management.

Additionally, Security Guardian integrates with MDI by forwarding its findings to Sentinel, which, in turn, sends signal data to Microsoft Defender. * MDI to Sentinel forwarding requires special Microsoft licensing

Security Guardian enhances CrowdStrike Falcon AD by providing additional specialized features for your Active Directory environment. It alerts on specific attacker tools, techniques, and procedures (TTPs) within Active Directory, ensuring comprehensive threat detection. Security Guardian enforces adherence to Privilege Account Management policies by hindering implicit relationships, particularly concerning Tier Zero objects. It automatically categorizes these critical objects and monitors any drifts from their known state. Additionally, Security Guardian proactively identifies, alerts on, and protects against Active Directory misconfigurations, such as Group Policy Object (GPO) setting changes and database attacks (.DIT). It also retains findings and audit data in compliance with retention requirements, ensuring thorough and compliant security management.

Change Auditor and On Demand Audit provide enriched event data from Active Directory and offer Active Directory and Group Policy protection capabilities. Security Guardian enhances these features by capturing Active Directory object state and misconfiguration data in addition to Change Auditor event data. It automates the protection capabilities of Tier Zero objects, ensuring a more comprehensive security approach. Moreover, Security Guardian integrates seamlessly with Change Auditor and On Demand Audit. It allows for the direct invoking of Tier Zero protection templates available in Change Auditor and ensures that relevant events and anomalies are sent from On Demand Audit to Security Guardian, creating a robust and integrated security framework.

SpecterOps BloodHound Enterprise provides Active Directory Tier Zero identification and attack path management. Security Guardian enhances these capabilities by highlighting drifts in Tier Zero objects' known-state, allowing for immediate governance actions to certify or revert changes. It enforces adherence to Privilege Account Management policies by hindering implicit relationships on Tier Zero objects. Security Guardian also collects attack surface configurations on domain controllers, such as the print spooler service, and can immediately disrupt certain Active Directory-based attack paths, like changes in ownership of Tier Zero objects and .DIT attacks. Furthermore, Security Guardian integrates seamlessly with SpecterOps BloodHound Enterprise by utilizing it as a Tier Zero provider. SpecterOps BloodHound Enterprise Tier Zero impact values are surfaced directly on the Security Guardian interface, creating a cohesive and powerful security solution.

Yes! SIEM solutions, like Sentinel and Splunk, aggregate tremendous amounts of signals from various sources to provide comprehensive security monitoring. Security Guardian enhances these solutions by being specifically built for Active Directory. It scans and surfaces identity misconfigurations and exposures related to Active Directory and Tier Zero objects. Security Guardian integrates seamlessly with SIEM tools through direct forwarding of findings via standard APIs, ensuring that all relevant data is included in your SIEM for a more robust and targeted security posture.