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1sass.exe Crypto Miner Virus – How to Remove It from Your PC

This post has been created to explain what is the 1sass.exe cryptocurrency miner and how to detect and remove it from your computer system effectively.

1sass.exe is the fake name of the legitimate lsass.exe process, responsible for Local Security authentication in Windows. In reality, the process is associated with CryptoCurrency miner malware which aims to take a significant percentage of your CPU or GPU resources in order to mine for anonymous cryptocurrencies from the likes of Monero and BitCoin. Since there are no symptoms besides the 1sass.exe process running in the background of your computer system, it is recommended to read this article in order to learn how to detect and remove this cryptocurrency miner from your PC.

Threat Summary

Name 1sass.exe Miner Virus
Type CryptoCurrency Miner
Short Description Aims to infect your computer and use it’s CPU, GPU and other resources to turn it into a miner for cryptocurrencies.
Symptoms Hightened CPU and GPU usage and overheating. The victim PC may break if this virus mines for longer periods of time.
Distribution Method Spam Emails, Email Attachments, Executable files
Detection Tool See If Your System Has Been Affected by malware


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User Experience Join Our Forum to Discuss 1sass.exe Miner Virus.

1sass.exe –

The malware may slither onto your computer via a variety of methods, the primary of which may be via malicious web links or files. Often the malware authors and operators use e-mail to propagate the malicious files. One of the latest trends in e-mail messages that is used may also be used with the 1sass.exe miner to infect unsuspecting users – fake buttons of social media sites. Such e-mails are very sophisticated and may link third-party websites via seemingly legitimate documents. They become more and more difficult to be recognized, like the example of a malicious e-mail linking to the file via dropbox below:

Besides this, other legitimate names, like PayPal, LinkedIn, Facebook, UPS, FedEx may also be used to propagate malware, so it is advisable to be careful and secure your Windows OS, so that even you make a mistake, your PC remains protected. For starters, you should disable the following services to prevent exploits from slithering malware in it.

  • Disable the WMI service.
  • Disable SMB and Download the latest security patches from Microsoft.

1sass.exe Miner Malware – Malicious Activity

As soon as your computer becomes infected by this cryptocurrency miner virus, you may immediately experience it’s symptoms. This is because the malicious payload of this cryptocurrency miner, consisting of 1sass.exe and other malicious processes may be dropped on your computer system in the following Windows directories and automatically executed immediately after:

  • %AppData%
  • %Temp%
  • %Local%
  • %LocalLow%
  • %Roaming%
  • %Windows%
  • %System%
  • %system32%

After the payload is active, it may trigger different modules, each of which is responsible for different activities, such as setting malicious registry entries in the following Windows Registry sub-keys:

→ HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run

After this has occurred, the virus may also modify your services to run it’s processes as an administrator and all of this may happen without you even noticing this. In addition to this, since the 1sass.exe may also be a Trojan horse, the malware may perform other malicious activities on your PC, besides mining for cryptocurrencies:

  • Extract vital files from it.
  • Download other malware on your PC.
  • Collect your passwords./span>
  • Log the keystrokes which you have typed.
  • Collect information about other computers on your network, possibly to infect them as well.
  • Update itself.

The main activity of the 1sass.exe miner however is to connect your computer to a so-called mining pool – a virtual place which unifies all of the cryptocurrency miner devices in order to have a higher hashing power and then divides the mining profits among the wallets. Among those wallets is the wallet of the cyber-criminal, which is link to all of the computers that are infected by the 1sass.exe miner malware. This immediately results in the virus generating cryptocurrency tokens faster and faster as more computers become infected.

How to Detect and Remove 1sass.exe Miner Virus

In order to detect and remove this malware effectively, you will need to check for the 1sass.exe process on your computer, it is strongly recommended that you follow the removal instructions below. In case you do not feel that you will cope with removing the 1sass.exe manually, it is always better to go with the automatic removal option and download an advanced anti-malware software as security experts often advise is the most effective way to remove the virus fully, detect other threats and ensure future protection for your computer as well.

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 1sass.exe Miner Virus.

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 1sass.exe Miner Virus with SpyHunter Anti-Malware Tool

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

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.

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

SpyHunter 5 Scan Step 1

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

SpyHunter 5 Scan Step 2

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.

SpyHunter 5 Scan Step 3

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

Step 2: Clean any registries, created by 1sass.exe Miner Virus 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 1sass.exe Miner Virus there. This can happen by following the steps underneath:

1. Open the Run Window again, type "regedit" and click OK.
Remove Virus Trojan Step 6

2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.
Remove Virus Trojan Step 7

3. You can remove the value of the virus by right-clicking on it and removing it.
Remove Virus Trojan Step 8 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 1sass.exe Miner Virus 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.

Remove Virus Trojan Step 9

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.

Remove Virus Trojan Step 10

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:

file extension malicious

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.

Remove Virus Trojan

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.

Remove Virus Trojan Step 11

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.

1sass.exe Miner Virus FAQ

What Does 1sass.exe Miner Virus Trojan Do?

The 1sass.exe Miner Virus 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.

What Damage Can 1sass.exe Miner Virus Trojan Cause?

The 1sass.exe Miner Virus Trojan is a malicious type of malware that can cause significant damage to computers, networks and data.

It can be used to steal information, take control of systems, and spread other malicious viruses and malware.

Is 1sass.exe Miner Virus Trojan a Harmful Virus?

Yes, it is. A Trojan is a type of malicious software that is used to gain unauthorized access to a person's device or system. It can damage files, delete data, and even steal confidential information.

Can Trojans Steal Passwords?

Yes, Trojans, like 1sass.exe Miner Virus, 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 1sass.exe Miner Virus 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.

Can 1sass.exe Miner Virus 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 1sass.exe Miner Virus Research

The content we publish on SensorsTechForum.com, this 1sass.exe Miner Virus 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 1sass.exe Miner Virus?

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 1sass.exe Miner Virus threat is backed with VirusTotal.

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

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