Behavior:Win32/AMSI Patch Virus – How to Remove It [Solved]

What Is Behavior:Win32/AMSI Patch?

Behavior:Win32/AMSI Patch is a type of malware that attacks by using Antimalware Scan Interface (AMSI) – Win32 apps, which may be the reason why it pops up as an infection. It belongs to the Behavioral detection type, meaning it was detected based on the behavior it demonstrates. If malware, it aims to steal sensitive information like login credentials, browser cookies, financial details, and cryptocurrency wallet information.

Once Behavior:Win32/AMSI Patch infects your system, you could lose control of your device, and your personal data might be stolen or even deleted.

Because of the significant danger this malware presents, it’s crucial to use reliable anti-malware tools to completely remove Behavior:Win32/AMSI Patch from your computer.

Behavior:Win32/AMSI Patch – What Should I Know?

This malware often spreads through pirated or cracked software. Once it finds its way onto a device, Behavior:Win32/AMSI Patch begins collecting data about the system and the installed programs.

It performs harmful activities using Javascript, including stealing system information, login details, browser cookies, financial data, and information from cryptocurrency wallets.

Here’s an overview of what it can do:

• Steal credentials – it captures usernames and passwords saved in browsers or password management apps.
• Financial data – it targets sensitive financial details like bank account information or credit card numbers.
• Cryptocurrency wallets – some versions aim to steal cryptocurrency wallets and private keys for assets such as Bitcoin or Ethereum.
• Keylogging – it records keystrokes to capture what the user types.

Remove Behavior:Win32/AMSI Patch from Your Computer

To completely remove Behavior:Win32/AMSI Patch, follow these steps. If you suspect your computer is infected, it’s best to use a reliable anti-malware tool.

Steps to follow:

• Run a full system scan using a trusted antivirus or anti-malware tool to detect and remove the trojan.
• Disconnect from the internet to stop the malware from sending stolen data to its control server.
• After the malware is removed, change all your passwords using a secure device.
• Keep an eye on your accounts for unusual activity, especially if the trojan accessed sensitive data.

Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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Preparation before removing Behavior:Win32/AMSI.

Before starting the actual removal process, we recommend that you do the following preparation steps.

• Make sure you have these instructions always open and in front of your eyes.
• Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
• Be patient as this could take a while.

• Scan for Malware
• Fix Registries
• Remove Virus Files

Step 1: Scan for Behavior:Win32/AMSI with SpyHunter Anti-Malware Tool

1. Click on the "Download" button to proceed to SpyHunter's download page.

Download

Malware Removal Tool

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It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter's EULA, Privacy Policy and Threat Assessment Criteria.

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2. After you have installed SpyHunter, wait for it to update automatically.

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3. After the update process has finished, click on the 'Malware/PC Scan' tab. A new window will appear. Click on 'Start Scan'.

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4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the 'Next' button.

If any threats have been removed, it is highly recommended to restart your PC.

Step 2: Clean any registries, created by Behavior:Win32/AMSI on your computer.

The usually targeted registries of Windows machines are the following:

• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
• HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
• HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

You can access them by opening the Windows registry editor and deleting any values, created by Behavior:Win32/AMSI there. This can happen by following the steps underneath:

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1. Open the Run Window again, type "regedit" and click OK.

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2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.

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3. You can remove the value of the virus by right-clicking on it and removing it. Tip: To find a virus-created value, you can right-click on it and click "Modify" to see which file it is set to run. If this is the virus file location, remove the value.

Step 3: Find virus files created by Behavior:Win32/AMSI on your PC.

1.For Windows 8, 8.1 and 10.

For Newer Windows Operating Systems

1: On your keyboard press  + R and write explorer.exe in the Run text box and then click on the Ok button.

2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.

3: Navigate to the search box in the top-right of your PC's screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be "fileextension:exe". After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:

N.B. We recommend to wait for the green loading bar in the navigation box to fill up in case the PC is looking for the file and hasn't found it yet.

2.For Windows XP, Vista, and 7.

For Older Windows Operating Systems

In older Windows OS's the conventional approach should be the effective one:

1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.

2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.

3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.

Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.

Behavior:Win32/AMSI FAQ

What Does Behavior:Win32/AMSI Trojan Do?

The Behavior:Win32/AMSI Trojan is a malicious computer program designed to disrupt, damage, or gain unauthorized access to a computer system. It can be used to steal sensitive data, gain control over a system, or launch other malicious activities.

Can Trojans Steal Passwords?

Yes, Trojans, like Behavior:Win32/AMSI, can steal passwords. These malicious programs are designed to gain access to a user's computer, spy on victims and steal sensitive information such as banking details and passwords.

Can Behavior:Win32/AMSI Trojan Hide Itself?

Yes, it can. A Trojan can use various techniques to mask itself, including rootkits, encryption, and obfuscation, to hide from security scanners and evade detection.

Can a Trojan be Removed by Factory Reset?

Yes, a Trojan can be removed by factory resetting your device. This is because it will restore the device to its original state, eliminating any malicious software that may have been installed. Bear in mind that there are more sophisticated Trojans that leave backdoors and reinfect even after a factory reset.

Can Behavior:Win32/AMSI Trojan Infect WiFi?

Yes, it is possible for a Trojan to infect WiFi networks. When a user connects to the infected network, the Trojan can spread to other connected devices and can access sensitive information on the network.

Can Trojans Be Deleted?

Yes, Trojans can be deleted. This is typically done by running a powerful anti-virus or anti-malware program that is designed to detect and remove malicious files. In some cases, manual deletion of the Trojan may also be necessary.

Can Trojans Steal Files?

Yes, Trojans can steal files if they are installed on a computer. This is done by allowing the malware author or user to gain access to the computer and then steal the files stored on it.

Which Anti-Malware Can Remove Trojans?

Anti-malware programs such as SpyHunter are capable of scanning for and removing Trojans from your computer. It is important to keep your anti-malware up to date and regularly scan your system for any malicious software.

Can Trojans Infect USB?

Yes, Trojans can infect USB devices. USB Trojans typically spread through malicious files downloaded from the internet or shared via email, allowing the hacker to gain access to a user's confidential data.

About the Behavior:Win32/AMSI Research

The content we publish on SensorsTechForum.com, this Behavior:Win32/AMSI how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific trojan problem.

How did we conduct the research on Behavior:Win32/AMSI?

Please note that our research is based on an independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware definitions, including the various types of trojans (backdoor, downloader, infostealer, ransom, etc.)

Furthermore, the research behind the Behavior:Win32/AMSI threat is backed with VirusTotal.

To better understand the threat posed by trojans, please refer to the following articles which provide knowledgeable details.