Full Report
Learn how you can streamline incident response with Huntress Managed EDR's Active Remediation. Sleep soundly while we thwart threats on your behalf.
Analysis Summary
# Tool/Technique: Huntress Active Remediation (Managed EDR)
## Overview
Active Remediation is a specialized feature within the Huntress Managed Endpoint Detection and Response (EDR) platform. It serves as an automated and human-led response mechanism that allows the Huntress Security Operations Center (SOC) to execute pre-authorized threat removal and containment actions on behalf of a client without requiring manual approval for each individual step. Its primary purpose is to reduce "Mean Time to Respond" (MTTR) by eliminating the delay caused by waiting for client intervention during an incident.
## Technical Details
- **Type:** Defensive Security Tool / Managed EDR Feature
- **Platform:** Windows, macOS (implied by EDR target scope)
- **Capabilities:** Automated threat containment, human-led remediation, severity-based policy customization, and guided recovery.
- **First Seen:** Feature announcement/update published May 13, 2024.
## MITRE ATT&CK Mapping
While this is a defensive tool, it is designed to mitigate the following tactics:
- **[TA0040 - Impact]**
- **[T1485 - Data Destruction]** (Mitigated via rapid containment)
- **[TA0003 - Persistence]**
- **[T1543 - Create or Modify System Process]** (Remediated via active removal)
- **[TA0005 - Defense Evasion]**
- **[T1562 - Impair Defenses]** (Mitigated via SOC-led restoration and hardening)
## Functionality
### Core Capabilities
- **Threat Containment:** Immediate isolation of infected hosts to prevent lateral movement and the spread of malware across the network.
- **Automated Response Plans:** The ability to execute pre-approved remediation scripts and commands to neutralize threats instantly.
- **24/7 Human-Led SOC:** Integration with a round-the-clock Security Operations Center that investigates suspicious activity and executes response plans.
### Advanced Features
- **Severity-Based Tailoring:** Users can enable or disable Active Remediation based on the severity of the incident (e.g., Low, Medium, High, Critical).
- **Endpoint Exclusions:** Granular control allowing administrators to exclude specific mission-critical endpoints from automated remediation actions to prevent operational downtime.
- **Guided Cleanup:** Provision of detailed, step-by-step instructions for post-incident recovery and environment hardening to prevent re-infection.
## Indicators of Compromise
*Note: As a defensive tool, Active Remediation generates internal logs rather than external IOCs. However, behavioral indicators of the tool's operation include:*
- **File Names:** `HuntressAgent.exe` (typical EDR agent behavior).
- **Behavioral Indicators:**
- Automated process termination of suspicious binaries.
- Network isolation of the host (host firewall modifications).
- Deletion of persistence mechanisms (registry keys, scheduled tasks).
## Associated Threat Actors
- **Targeted by:** While not a tool used by actors, it is designed to defend against various Ransomware-as-a-Service (RaaS) groups, initial access brokers, and advanced persistent threats (APTs) that utilize Living-off-the-Land (LotL) techniques.
## Detection Methods
- **Behavioral Detection:** The EDR component monitors for unauthorized process execution, credential dumping, and suspicious PowerShell scripts.
- **Telemetry Analysis:** Constant monitoring of endpoint telemetry by the 24/7 SOC to identify anomalies that bypass automated signatures.
## Mitigation Strategies
- **Pre-Authorization:** Configuring Active Remediation policies to allow the SOC to act during off-hours.
- **Environment Hardening:** Implementing the "Guided Cleanup" recommendations provided after an incident to address the root cause of the breach.
- **Policy Customization:** Regularly reviewing endpoint exclusion lists to ensure maximum coverage.
## Related Tools/Techniques
- **Managed ITDR (Identity Threat Detection and Response):** Complementary service focused on identity-based attacks.
- **Auto-Remediations:** A sub-feature specifically targeting the instant removal of low-severity threats.
- **Host Isolation:** A standard EDR technique used within the Active Remediation workflow to quarantine compromised systems.