Dofoil Crypto-Mining Malware Removal (June 2018 Update)


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This page aims to help you remove Dofoil Crypto-Mining Malware. Our removal instructions work for every version of Windows.

In this article we are going to put our emphasis on the so-called Trojan horses and their representative Dofoil Malware. Below we have provided all the necessary information for you to understand and deal with this threat successfully.

Trojans and their nature and sources. Dofoil Malware and its particular behaviour:

Generally speaking, the attacks caused by Trojan viruses represent one of the worst threats one can have the misfortune of coming across nowadays. All the Trojans are normally separated into two components – a server and a client. Usually – it is the client part that gets disguised as a seemingly safe software and put in peer-to-peer file sharing networks, or illegal download web pages. The most frequent means of infection is via email attachments. The creators of the virus normally use different spamming techniques with the purpose of spreading the virus to the unsuspecting users. Malware designers may even use chat software as a means of distributing their Trojan viruses (like Yahoo Messenger and Skype).

Trojans represent programs that seem harmless, however are, indeed, really malicious. Their name comes from the Ancient Greek mythology – the myth about the Trojan War. According to the legends, the Greeks created a huge wooden horse that the people of Troy allowed into the city, believing it was a present and a peace offer. However, at night, the Greek soldiers who had been hidden inside the horse went out and opened Troy’s gates to let their armies in and then crushed the city. Basically, that is what happens with your PC if you have been infected with a Trojan virus like Dofoil.

How to stop Dofoil:

For achieving that purpose, you can follow the instructions shared below. Everything you need to perform is discussed in the Removal Guide you will see at the end of this page.

How to protect your PC from other infections from now on:

It is very important to avoid everything that is illegal and suspicious online because such viruses could be lurking anywhere on the web, not only inside emails and fake pop-ups. Also, you need to keep your OS and anti-malware tool in updated to their latest patches and versions as they are your strongest weapons against viruses.

Dofoil Crypto-Mining Malware Removal


 

Step1

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).

Step2

WARNING! READ CAREFULLY BEFORE PROCEEDING!

Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab. Try to determine which processes are dangerous. 

malware-start-taskbar

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Drag and Drop Files Here to Scan
Maximum file size: 128MB.

This scanner is free and will always remain free for our website's users. You can find its full-page version at: https://howtoremove.guide/online-virus-scanner/




Scan Results


Virus Scanner Result
ClamAV
AVG AV
Maldet

After you open their folder, end the processes that are infected, then delete their folders. 

Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 

Step3

Hold together the Start Key and R. Type appwiz.cpl –> OK.

appwiz

You are now in the Control Panel. Look for suspicious entries. Uninstall it/them. If you see a screen like this when you click Uninstall, choose NO:

virus-removal1

Step4

Type msconfig in the search field and hit enter. A window will pop-up:

msconfig_opt

Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

  • Remember this step – if you have reason to believe a bigger threat (like ransomware) is on your PC, check everything here.

Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

hosts_opt (1)

If there are suspicious IPs below “Localhost” – write to us in the comments.

Step5

Type Regedit in the windows search field and press Enter.

Once inside, press CTRL and F together and type the virus’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!

Dofoil works by lurking inside of what initially seems to be useful software programs. Nonetheless, as soon as it is executed or installed into the targeted system, this sort of virus may start affecting some files stored in the victim’s PC. Usually, any Trojan virus is also able to steal important data from the user’s system or the network it is connected to. As a result, the hackers who have sent this terrible malware will be able to gain the control over the computer using such a Trojan. While such horrible activities are taking place, the user may notice that the infected PC is now very slow or that some unknown windows appear without any activity from the affected users themselves. Following that, this could result in a computer crash.

However, unlike a standard viruses, malware programs like Dofoil cannot replicate. As the victim user is usually unaware that a Trojan horse has been installed, the computer’s security depends upon its anti-virus tool that would hopefully recognize the malicious code, and then could isolate it and remove it.

Uses of viruses such as Dofoil:

Actually, cyber terrorists have a long history of using Trojans as a means of tricking end-users into installing other types of malware into their systems. This is one of the Trojans’ most usual purposes. Normally, it is a Ransomware version that is distributed by viruses like Dofoil. Usually, as we have already discussed above, such a malicious program could be hidden within a seemingly harmless email attachment or a free software package, such as a pirated version of a popular game. As soon as the user gets the Trojan horse, the malware that is lurking inside would get loaded as well. We must say here that the popularity of Dofoil and of the other Trojan versions could be partly blamed on their incredibly multifunction nature. That means such a virus could be programmed to perform absolutely everything once installed on your PC.

Some of the other consequences resulting from the presence of any Trojan on your machine could be unwanted changes to your computer settings and various unauthorized activities even when the computer is supposed to be idle.

SUMMARY:

Name Dofoil
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  Nothing in particular is really obvious.
Distribution Method Fake ads, as well as contagious emails and many web pages containing malware.
Detection Tool We generally recommend SpyHunter or a similar anti-malware program that is updated daily.


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