How and When to Use Windows’ Hidden Malware Scanner Tool

Microsoft Defender serves as the primary security shield for Windows, adeptly identifying and neutralizing emerging threats. Complementing this robust defense is a lesser-known yet highly effective tool known as the Malicious Software Removal Tool (MSRT). This specialized tool concentrates on thoroughly addressing common malware threats. Below, we delve into the functionalities of MSRT and its appropriate usage.

Understanding the Malicious Software Removal Tool

The MSRT stands as an auxiliary virus removal solution, working in conjunction with Microsoft Defender. It receives monthly updates via Windows Update, scanning your system automatically in Quiet Mode after each update. MSRT’s primary function is to identify and eliminate the most prevalent malware, including various families of trojans, rootkits, worms, and more.

With each monthly refresh, MSRT adjusts its detection capabilities, adding and removing malware families to emphasize currently significant threats. Upon detection of an infection, it doesn’t just eradicate the malware but also attempts to reverse any harmful changes inflicted on the system.

While MSRT is not a standalone comprehensive threat detection solution like Microsoft Defender, it acts as a supplementary measure to capture high-risk threats prevalent during a specific timeframe. Importantly, it remains operational even when third-party antivirus software disables Microsoft Defender, ensuring continued protection from a Microsoft-backed solution.

Situations Favoring the Use of MSRT

Many users might wonder about the necessity of MSRT when both Microsoft Defender and various antivirus programs can detect a wide range of threats. Below are key scenarios when utilizing MSRT can be particularly beneficial:

Enhance Protection Alongside Third-Party Antivirus: If you rely on third-party antivirus applications, running MSRT in tandem provides an additional layer of security. Given that these applications operate with distinct virus definitions, MSRT could potentially flag threats that the primary antivirus might overlook.
Restore System Integrity After Malware Infections: While standard antivirus solutions may focus solely on deleting detected malware, MSRT specifically targets the remediation of issues caused by various types of malware, such as adware and trojans. It can refine browser settings, eliminate rogue extensions, and reinstate original configurations, making it invaluable for post-infection cleanup.
Effective Against Compromised Security Tools: Certain malware strains are designed to disable existing antivirus programs, complicating recovery. As a standalone tool, MSRT often remains unaffected by such attacks, enabling users to run scans and potentially eliminate persistent threats.

Utilizing the Malicious Software Removal Tool

MSRT runs automatically every month but can also be executed manually for immediate scans. To utilize it on demand, follow these steps:

Press the Windows + R keys simultaneously to open the Run dialog.
Type mrt into the dialog box and confirm your selection by responding to the User Account Control (UAC) prompt.

Once the application launches, click Next to select your desired scan type, which includes Quick, Full, and Customized options—mirroring the functionalities found in Microsoft Defender. Scanning times can be comparable, with a full scan potentially requiring several hours. After making your selection, click Next to proceed.

The tool will then execute the scan. If it identifies malware, it will automatically delete it and attempt to repair any damage caused. Upon completion, you can click the View detailed results of scan button to see the threats detected and the actions taken.

MSRT showing list of malware it can detect

The results report provides vital insights into prevalent malware species; by clicking their names, you can obtain further information directly in your browser. This information encompasses notable malware such as Emotet, Neptune, and WannaCry.

In summary, while MSRT adds significant value, it should not be viewed as a replacement for Microsoft Defender or any comprehensive antivirus software. It is intended as a supplementary tool that enhances your overall security strategy. For optimal protection, consider integrating other Windows security features as well.

Source & Images