Conhost.exe Virus

Also Known As: "Console Window Host" virus
Type: Trojan
Distribution: Low
Damage level: Severe

Conhost.exe virus removal guide

What is Conhost.exe?

Conhost.exe (Console Window Host) is a process of a program (cryptominer) that is designed to mine Monero cryptocurrency. As a rule, cyber criminals trick people into downloading and installing it with a purpose to generate revenue. Simply said, this program uses computer's resources to mine cryptocurrency every time a user logs into Windows operating system. Presence of this malware significantly decreases computer's performance.

Conhost.exe malware

Cryptocurrency mining is a process that involves solving complicated mathematical problems. To do so, the installed cryptominer uses CPU (Central Processing Unit). Quite often people are unaware that there is a cryptomining process running in their system's background. Typically, programs of this type cause high CPU usage which results in decreased computer's performance and increased usage of electricity. It could cause a hardware overheat as well. Increased usage of electricity causes higher energy costs (higher electricity bills). The worst part is that users who have their computers infiltrated by cryptominers get nothing in return, cyber criminals who trick them into installing these programs are the only ones who benefit from it (they get all mined cryptocurrency to themselves). If a computer works slower/there is a significant CPU usage, then it is very likely that it is caused by some installed cryptominer. We should mention that conhost.exe (as well as its process ["Console Windows Host"] is a completely legitimate windows process. However, cyber criminals disguise a cryptominer under this name in order to create the impression of legitimacy and to make the detection/removal even harder. Luckily, most of anti-virus/anti-spyware suites are capable of detecting and eliminating this malware. Hence, if you see a Console Windows Host process which uses a lot of computer's resources, then immediately scam the system with a reputable anti-virus/anti-spyware suite and eliminate all detected threats.

Threat Summary:
Name Conhost.exe (Console Window Host) virus
Threat Type Trojan, Cryptominer
Detections (conhost.exe)
Avast (Win32:DangerousSig [Trj]), BitDefender (Trojan.GenericKD.31848709), ESET-NOD32 (A Variant Of Win32/Kryptik.GLWT), Kaspersky (Trojan.Win32.RunDll.ddu), Full List (VirusTotal)
Malicious Process Name(s) Console Window Host
Symptoms Significant decrease in computer's performance, system crashes, processes with high CPU usage in Windows Task Manager.
Distribution methods Infected email attachments, malicious online advertisements, social engineering, software cracks.
Damage Inability to use the computer properly, potential hardware damage, increased electricity usage.
Removal

To eliminate Console Window Host virus our malware researchers recommend scanning your computer with Spyhunter.
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Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

There are many other programs that are designed to mine cryptocurrency, for example XMR Miner, BitCoinMiner or AV64N.exe. They could be used by anyone, however, quite often people download and install them unknowingly. In other words, cyber criminals trick them into it. It is unknown how exactly they spread this particular miner, however, there are some most commonly used ways to spread them in a stealthy way.

How did Conhost.exe infiltrate my computer?

As a rule, cyber criminals distribute various computer infections through Trojans, spam campaigns, fake software updaters, untrustworthy software download tools/sources and software 'cracking' tools. Trojans are programs that, if installed, download and install various computer infections. These are malicious programs that are designed to cause chain infections. To spread viruses through spam campaigns, cyber criminals send emails that contain malicious attachments. Typically, attached files are MS Office documents, JavaScript or archive files, PDF documents, executables (.exe files) and so on. Once opened, these files download and install various computer infections. Fake/unofficial software updaters, if used, often download and install malicious programs instead of the updates or fixes. Or they exploit bugs, flaws of outdated software. Unofficial, freeware, free file hosting websites, third party downloaders, Peer-to-Peer networks and other similar software download channels can be used as tools to present malicious programs as well. Cyber criminals present viruses as harmless files. When people download and open them, they install various viruses. Software cracking tools are programs that supposed to bypass paid software activations. Nevertheless, quite often these tools cause computer infections as well (they download and install viruses instead of activating one or another program).

How to avoid installation of malware?

We recommend not to open attachments (or web links) that are presented in irrelevant emails, especially if they are received from unknown, suspicious email addresses. Installed programs/software should be updated using only implemented tools or functions that are provided by official software developers. Furthermore, download software using official and trustworthy websites or other official sources. It is not recommended to use some third party software downloaders or any other sources that we mentioned above. Keep in mind that software cracking tools are illegal and often are used to spread computer infections. Another way to avoid computer infections is to have a trustworthy, reputable anti-spyware or anti-virus software installed and to keep it enabled. If you believe that your computer is already infected, we recommend running a scan with Spyhunter for Windows to automatically eliminate infiltrated malware.

Malicious executable (ConHost.exe) identified as a threat by various anti-virus/anti-spyware suites:

conhost identivied as a threat by virustotal engines

Instant automatic removal of Console Window Host virus: 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 Console Window Host virus. 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's better to let antivirus or anti-malware programs do it 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's an example of a suspicious program running on 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 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 Autoruns application and locate the malware file that you want to eliminate.

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

locate the malware file you want to remove

After removing the malware through Autoruns application (this ensures that the malware won't 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 file 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 help remove any malware from your computer. Note that manual threat removal requires advanced computer skills, it's recommended to leave malware removal to antivirus and anti-malware programs. These steps might not work with advanced malware infections. As always it's better to avoid getting infected that try to remove malware afterwards. To keep your computer safe be sure to install 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.