How to uninstall SamoRAT malware?

Also Known As: SamoRAT remote access trojan
Type: Trojan
Distribution: Low
Damage level: Severe

SamoRAT virus removal guide

What is SamoRAT?

SamoRAT is a Remote Access Trojan (RAT), a type of malware that allows cyber criminals behind it to monitor and control the infected computer. In most cases RATs are used to steal sensitive information and/or install some other malware on the infected computer. Either way, RATs are used for malicious purposes and can be the reason behind a variety of problems.

SamoRAT malware

Research shows that SamoRAT allows cyber criminals to execute files stored on a computer or downloaded from the Internet, capture screen, steal passwords saved on Chrome browser, shutdown, restart a computer and open various websites. Also, SamoRAT can be added to system startup, updated, uninstalled and it is capable of bypassing the UAC (User Account Control) mandatory access control enforcement facility. Additionally, this RAT can mine cryptocurrency. Basically, cyber criminals behind SamoRAT can use it as a tool to infect a computer with some other Trojan, ransomware, or other malicious software that could be used as a tool to generate revenue in one or another way. By being able to steal passwords saved on Chrome cyber criminals may misuse them to hijack/steal various accounts (e.g., banking, email, social media and other accounts) that could be misused to make fraudulent purchases, transactions, steal identities, spread malware, trick other people into making money transactions, etc. Crypto mining feature allows cyber criminals to use infected computers to mine cryptocurrency by using their hardware (CPU, GPU). It means that infected machines may operate slower (or not respond at all), consume more electricity, which means users may experience unexpected shutdowns (which could result in loss of unsaved data), receive higher electricity bills. Also, high CPU and/or GPU usage may cause hardware overheat. These are the main issues with having a computer infected with SamoRAT. If there is any reason that this RAT is installed on a computer, then this malware should be uninstalled as soon as possible.

Threat Summary:
Name SamoRAT remote access trojan
Threat Type Remote Access Trojan
Detection Names Avast (Win32:Trojan-gen), BitDefender (Gen:Variant.Ursu.913684), ESET-NOD32 (A Variant Of MSIL/Agent.THY), Kaspersky (HEUR:Backdoor.MSIL.Crysan.gen), Full List (VirusTotal)
Payload RATs can be used as tools to install a variety of malicious programs
Symptoms Remote Administration Trojans are designed to stealthily infiltrate the victim's computer and remain silent, and thus no particular symptoms are clearly visible on an infected machine.
Distribution methods Infected email attachments, malicious online advertisements, social engineering, software 'cracks'.
Damage Stolen passwords and banking information, identity theft, the victim's computer added to a botnet.
Malware Removal (Windows)

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There are many other RATs, some examples are XpertRAT, STRRAT and Bozok. As mentioned in the introduction, cyber criminals attempt users to infect their computers with malware of this type so they could steal sensitive information and/or install additional malware. Having a computer infected with a RAT can be the reason behind a variety of serious problems. Ways to avoid installation of a RAT and other malware are described below.

How did SamoRAT infiltrate my computer?

Most cyber criminals attempt to proliferate malicious software through spam campaigns, Trojans, unofficial updaters, software 'cracking' tools (activators) and untrustworthy file, software download channels. Quite often they simply send emails that contain malicious attachments or website link. For example, their emails contain malicious Microsoft Office documents or PDF documents, archive files like ZIP, RAR, executable files (.exe) or JavaScript files. If opened, those files cause installation of malware. Trojans are malicious programs that often are designed to install other programs of this kind. In other words, when a computer is infected with a Trojan, then it can get infected with other malware as well. Fake software updaters cause damage by installing malicious software instead of updates, fixes for installed one, or by exploiting bugs, flaws of outdated programs. Various unofficial activators that supposed to activate licensed for free often are designed to infect computers with some malware instead. Peer-to-peer (P2P) networks, free file hosting websites, freeware download pages, third party downloaders and other similar channels can be used to distribute malware too. Cyber criminals disguise malicious files as regular, legitimate and wait for users to download and opened them. By doing so users install some high-risk malware on their computers.

How to avoid installation of malware?

It is strongly recommended to ignore irrelevant emails that contain attachments or web links, especially if they are received from unknown, suspicious addresses.  It is common that such emails are disguised as important, official, and so on. Also, it is important not to download (or install) software or files through from unofficial pages, third party downloaders (or installers), or any other tools, channels that are mentioned in the previous paragraph. All software (and files) should be downloaded from official websites and direct links. The safest and the only proper way to update or activate installed software is to use tools or implemented functions that are provided/designed by official developers. Other (unofficial, third party) tools should never be used. Besides, it is not legal to activate any licensed software unofficial activators ('cracking' tools). One more important thing is to regularly scan a computer for threats with a reputable anti-spyware or antivirus software. If you believe that your computer is already infected, we recommend running a scan with Malwarebytes for Windows to automatically eliminate infiltrated malware.

Screenshots of SamoRAT control panel (website):

samorat malware administration panel samorat malware administration panel samorat malware administration panel

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Malwarebytes is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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How to remove malware manually?

Manual malware removal is a complicated task - usually it is best to allow antivirus or anti-malware programs to do this automatically. To remove this malware we recommend using Malwarebytes for Windows. If you wish to remove malware manually, the first step is to identify the name of the malware that you are trying to remove. Here is an example of a suspicious program running on a user's computer:

malicious process running on user's computer sample

If you checked the list of programs running on your computer, for example, using task manager, and identified a program that looks suspicious, you should continue with these steps:

manual malware removal step 1Download a program called Autoruns. This program shows auto-start applications, Registry, and file system locations:

screenshot of autoruns application

manual malware removal step 2Restart your computer into Safe Mode:

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

 

manual malware removal step 3Extract the downloaded archive and run the Autoruns.exe file.

extract autoruns.zip and run autoruns.exe

manual malware removal step 4In the Autoruns application, click "Options" at the top and uncheck "Hide Empty Locations" and "Hide Windows Entries" options. After this procedure, click the "Refresh" icon.

Click 'Options' at the top and uncheck 'Hide Empty Locations' and 'Hide Windows Entries' options

manual malware removal step 5Check the list provided by the Autoruns application and locate the malware file that you want to eliminate.

You should write down its full path and name. Note that some malware hides process names under legitimate Windows process names. At this stage, it is very important to avoid removing system files. After you locate the suspicious program you wish to remove, right click your mouse over its name and choose "Delete".

locate the malware file you want to remove

After removing the malware through the Autoruns application (this ensures that the malware will not run automatically on the next system startup), you should search for the malware name on your computer. Be sure to enable hidden files and folders before proceeding. If you find the filename of the malware, be sure to remove it.

searching for malware file on your computer

Reboot your computer in normal mode. Following these steps should remove any malware from your computer. Note that manual threat removal requires advanced computer skills. If you do not have these skills, leave malware removal to antivirus and anti-malware programs. These steps might not work with advanced malware infections. As always it is best to prevent infection than try to remove malware later. To keep your computer safe, install the latest operating system updates and use antivirus software.

To be sure your computer is free of malware infections, we recommend scanning it with Malwarebytes for Windows.

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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