How to remove Behavior:Win32/AMSI_Patch_T.B13

What is Behavior:Win32/AMSI_Patch_T.B13

Behavior:Win32/AMSI_Patch_T.B13 is a detection name used by Windows Defender to identify a particular type of threat that manipulates the Antimalware Scan Interface (AMSI) on Windows systems. This threat can execute potentially unwanted applications, making it a significant concern for users who rely on the built-in security features of Windows. Typically, this detection is linked to activities that aim to disable or bypass AMSI, which is an essential component for identifying and blocking malicious code before it runs. The presence of this threat might indicate that a system is compromised by malware designed to evade detection by antivirus tools. Although it can be associated with legitimate software tampering with AMSI for benign reasons, it’s crucial for users to investigate and confirm the legitimacy of the application responsible. Ignoring this warning could leave systems vulnerable to a wide array of attacks, including data breaches and unauthorized access. Users encountering this detection should promptly use a reputable antivirus solution to scan and clean their systems, ensuring their devices are free from potential threats.

How Behavior:Win32/AMSI_Patch_T.B13 infected your system

Behavior:Win32/AMSI_Patch_T.B13 is a sophisticated malware threat identified by Windows Defender that exploits the Antimalware Scan Interface (AMSI) to evade detection. Typically, it infiltrates computers through compromised websites, malicious email attachments, or bundled software downloads from untrusted sources. Once installed, it can execute and install potentially unwanted applications (PUAs), thereby compromising system integrity. The malware may also disguise itself as legitimate software to avoid detection, leveraging AMSI vulnerabilities to bypass security scans. This allows it to execute commands remotely, giving malicious actors control over the infected system. Users can mitigate the risk of infection by keeping their antivirus software up-to-date, avoiding downloads from unknown sources, and exercising caution with email attachments and links.

1. Download Behavior:Win32/AMSI_Patch_T.B13 Removal Tool
2. Use Windows Malicious Software Removal Tool to remove Behavior:Win32/AMSI_Patch_T.B13
3. Use Autoruns to remove Behavior:Win32/AMSI_Patch_T.B13
4. Files, folders and registry keys of Behavior:Win32/AMSI_Patch_T.B13
5. Other aliases of Behavior:Win32/AMSI_Patch_T.B13
6. How to protect from threats, like Behavior:Win32/AMSI_Patch_T.B13

Remove Behavior:Win32/AMSI_Patch_T.B13 manually

Manual removal of Behavior:Win32/AMSI_Patch_T.B13 by inexperienced users may become a difficult task because it does not create entries in Add/Remove Programs under Control Panel, does not install browser extensions, and uses random file names. However, there are pre-installed instruments in the Windows system, that allow you to detect and remove malware without using third-party applications. One of them is Windows Malicious Software Removal Tool. It comes with Windows Update in Windows 11, 10, 8. 8.1. For older operating system you can download it here: 64-bit version | 32-bit version.

Remove Behavior:Win32/AMSI_Patch_T.B13 using Windows Malicious Software Removal Tool

1. Type mrt in the search box near Start Menu.
2. Run mrt clicking on found item.
3. Click Next button.
4. Choose one of the scan modes Quick scan, Full scan, Customize scan (Full scan recommended).
5. Click Next button.
6. Click on View detailed results of the scan link to view the scan details.
7. Click Finish button.

Remove Behavior:Win32/AMSI_Patch_T.B13 using Autoruns

Behavior:Win32/AMSI_Patch_T.B13 often sets up to run at Windows startup as an Autorun entry or Scheduled task.

1. Download Autoruns using this link.
2. Extract the archive and run Autoruns.exe file.
3. In Options menu make sure there are checkboxes near Hide Empty Locations, Hide Microsoft Entries, and Hide Windows Entries.
4. Search for suspicious entries with weird names or running from locations like: C:\{username}\AppData\Roaming.
5. Right-click on suspicious entry and choose Delete. This will prevent the threat to run at startup.
6. Switch to Scheduled Tasks tab and do the same.
7. To remove files themselves, click on suspicious entries and choose Jump to Entry…. Remove files or registry keys found.

Remove files, folder and registry keys of Behavior:Win32/AMSI_Patch_T.B13

Behavior:Win32/AMSI_Patch_T.B13 files and folders


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Behavior:Win32/AMSI_Patch_T.B13 registry keys


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Aliases of Behavior:Win32/AMSI_Patch_T.B13

How to protect from threats, like Behavior:Win32/AMSI_Patch_T.B13, in future

Standard Windows protection or any decent third-party antivirus (Norton, Avast, Kaspersky) should be able to detect and remove Behavior:Win32/AMSI_Patch_T.B13. However, if you got infected with Behavior:Win32/AMSI_Patch_T.B13 with existing and updated security software, you may consider changing it. To feel safe and protect your PC from Behavior:Win32/AMSI_Patch_T.B13 on all levels (browser, e-mail attachments, Word or Excel scripts, file system) we recommend a leading provider of internet security solutions – BitDefender. Its solutions both for home and business users proved to be one of the most advanced and effective. Choose and get your BitDefender protection via the button below:

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