How to prevent installation of AsyncRAT

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

AsyncRAT virus removal guide

What is AsyncRAT?

AsyncRAT is the name of a remote access or administration tool (RAT). RATs are used to control computers remotely, typically for educational, technical support purposes. In many cases, however, cyber criminals try to trick people into installing these tools to perform various actions on their computers, thereby enabling them to generate revenue. Typically, cyber criminals attempt to steal personal, sensitive details or infect computers with other malware. Programs such as AsyncRAT can cause serious problems and should be uninstalled immediately.

AsyncRAT malware

One feature available in AsyncRAT enables it to open various websites, including malicious sites. Cyber criminals also use it to send various files including, for example, executables. If opened, these can install malicious software. AsyncRAT can be used to proliferate malware such as ransomware, trojans, and other malicious programs. Furthermore, it allows users to monitor computing activities, access and manage various files (including personal documents), and start/end processes. This RAT can also be used as a keylogger. The keylogging feature can record keystrokes - i.e., log/record keys pressed on the keyboard. Cyber criminals use this feature steal logins and passwords of emails, banking, and other personal accounts. They use stolen accounts to generate revenue in various ways. Stolen bank account information can be used to make fraudulent transactions, whilst stolen email accounts can be used to proliferate malware by sending emails containing malicious attachments, also to send scam emails, and so on. Stolen accounts can also be used to extort money from other people (family members, friends, co-workers, acquaintances, etc.). In any case, logged keystrokes can be used to generate revenue and cause users of infected computers (or other people) financial loss. Furthermore, AsyncRAT can be used to place malicious programs onto USB drives and proliferate them on other computers. In summary, AsyncRAT is powerful enough to cause computer infections, financial loss, steal sensitive details (causing problems with privacy), unwanted downloads/installations, and so on. If this RAT was not installed intentionally, remove it from your computer immediately.

Threat Summary:
Name Async remote access trojan
Threat Type Remote Access Trojan
Detection Names AegisLab (Trojan.Win32.Generic.4!c), BitDefender (Gen:Variant.MSILPerseus.191214), ESET-NOD32 (A Variant Of MSIL/Agent.BVF), Kaspersky (HEUR:Trojan.Win32.Generic), Full List (VirusTotal)
Symptoms Remote access 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 banking information, passwords, identity theft, installation of other malicious software
Removal

To eliminate Async remote access trojan our malware researchers recommend scanning your computer with Spyhunter.
▼ Download Spyhunter
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

There are many legitimate and illegal RATs on the Internet. They can be used by cyber criminals for malicious purposes. People are generally unaware that their computers are infected with these programs. The longer they are installed, the more damage cyber criminals can cause through them. Examples of other programs of this type are Poison Ivy, NetWire, and Quasar.

How did AsyncRAT infiltrate my computer?

Typically, people download and install malicious programs when cyber criminals trick them into it. Criminals use spam campaigns (emails), untrustworthy file and/or software download channels, unofficial software updating or activation tools and trojans. Using "malspam" (spam campaigns), they send emails that contain malicious attachments. If opened, these cause download and installation of malicious programs. Examples of files that can be used to proliferate malware are Microsoft Office documents, executable files (.exe), JavaScript files, archives such as ZIP, RAR and PDF documents. Another way to proliferate malicious software is through dubious file and/or software download sources. For example, Peer-to-Peer networks (torrent clients, eMule), unofficial pages, free file hosting or freeware websites, third party downloaders and other similar sources. To trick people into installing malicious software, cyber criminals disguise malicious files as normal and legitimate. Computers become infected when people download and open them. Fake software updaters download and install malicious programs rather than updates or fixes. In other cases, they infect computers by exploiting bugs/flaws of outdated software already installed on the system. Unofficial activation ('cracking') tools supposedly activate software free of charge and bypass paid activation, however, they often download and install malware. Trojans are malicious programs that proliferate other programs of this type - if installed, they cause chain infections.

How to avoid installation of malware?

Ignore irrelevant emails that contain attachments or web links, especially those sent from unknown, suspicious addresses. Do not download or install programs using third party downloaders/installers, or the other sources mentioned above. All files and programs should be downloaded from official websites and using direct download links. Installed programs should be updated using tools or implemented functions that are created by official software developers. The same applies to software activation: 'cracking' tools are illegal and often cause installation of malicious programs. Installed programs should be activated properly. Keep your computer safe by scanning for viruses with reputable anti-virus or anti-spyware software. Remove any detected threats immediately. If you believe that your computer is already infected, we recommend running a scan with Spyhunter for Windows to automatically eliminate infiltrated malware.

AsyncRAT administration panel:

AsyncRAT control panel

Instant automatic removal of Async remote access trojan: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of Async remote access trojan. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

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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 Spyhunter 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 1 Download 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 the "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 Spyhunter 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 virus and spyware activity level today:

Medium threat activity
Medium

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

QR Code
Async remote access trojan QR code
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Platform: Windows

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