Deftesrg.exe Monero CPU Miner - How to Detect + Remove It

Deftesrg.exe Monero CPU Miner – How to Detect + Remove It

This article has been created in order to assist in identifying and removing the deftesrg.exe Monero miner malware from your computer to prevent it from mining the cryptocurrency Monero on it.

A new miner malware which uses the process deftesrg.exe has been detected to connect victim computers to a Monero mining pool and begins to utilize their CPU and GPU power in order to mine for the crypto. This results in the infect computer to significantly slow down, freeze and even break down due to overheating if the malware remains for longer periods of time on it. So if you see any signs of presence of the deftesrg.exe Monero miner malware we strongly suggest that you read the following article and learn how to remove this miner from your PC in a safe manner.

Threat Summary

NameDeftesrg.exe Monero Miner
TypeMiner Trojan Horse
Short DescriptionAims to use the system’s resources of the infected computers to mine for Monero and other crypto currencies.
SymptomsAfter infection the miner overloads the CPU for extended periods of time which results in poor PC performance and system crashes.
Distribution MethodNetworks attacks, exploits, emails, scam sites and malware downloads.
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Deftesrg.exe Miner Malware — Spread

The deftesrg.exe miner malware may be replicated via more than one ways. It is not clear which strategy is most preferred by the cyber-criminals, but it is most likely that spam e-mails that contain deceitful messages and malicious attachments that are the cause of infection. Such e-mails often portray the malicious files of deftesrg.exe miner malware as legitimate documents of various types:

  • Invoice.
  • Receipt.
  • Order confirmation.
  • Product return.

In addition to this, the deftesrg.exe miner malware is also the type of malware that may come as a malicious web link posted in fake e-mails, that are very clever copies of legitimate companies from the likes of Dropbox, LinkedIn, Facebook, etc. just to get you to click on it. Such e-mails look very similar to what an original e-mail from those companies would look like, for example:

Furthermore, besides via e-mail, the malicious files may also pretend to be legitimate types of files from the likes of:

  • Fake software setups.
  • Fraudulent key generators or software activators.
  • Fake game or program patches and cracks.

Deftesrg.exe Malware — Malicious Activity

Once your computer has already been infected by the deftesrg.exe miner malware, it’s malicious files may be dropped on your computer system. They may be copied in the following Windows directories:

%AppData%
%Local%
%Roaming%
%Temp%
%LocalLow%
%Windows%

The main malicious file of the virus, named deftesrg.exe is the miner executable and it’s primary purpose is to silently connect your computer to the following miner pool for the Monero cryptocurrency:

stratum+tcp://xmr-eu1.nanopool.org:14444

After this has been done, the malware may also create a task that runs the deftesrg.exe process and it begins to overload your CPU and GPU by conducting the hashing operations in the mining pool. But instead of rewarding you for the operation, the credits are transferred to the cyber-criminal’s cryptocurrency wallet. The only negative outcome is for your computer’s components, which can result in your PC becoming unstable in terms of performance and it may even break down if the virus remains for a long time active and overusing the CPU and GPU.

In addition to mining for cryoptocurrencies, the deftesrg.exe miner malware may begin to perform other activities on your computer, among which may be the following:

  • Log your keystrokes.
  • Steal files.
  • Take screenshots.
  • Steal passwords and login ID’s.
  • Obtain different private information from your web browser.
  • Update itself.
  • Download other malware.

How to Remove Deftesrg.exe Miner Virus from Your Computer

In order to fully be rid of this miner malware, it is advisable to firstly isolate it by making it inactive. Then, you can try following either the manual or the automatic removal instructions down below, created to help you cope with the virus based on your malware removal experience. However, it is strongly advisable by researchers to remove this malware by downloading and installing an advanced anti-malware software, whose primary purpose is to automatically detect all objects created by the deftesrg.exe miner malware (if present) and remove those objects plus detect other malware in the process to secure your PC fully.

Manually delete Deftesrg.exe Monero Miner from your computer

Note! Substantial notification about the Deftesrg.exe Monero Miner threat: Manual removal of Deftesrg.exe Monero Miner requires interference with system files and registries. Thus, it can cause damage to your PC. Even if your computer skills are not at a professional level, don’t worry. You can do the removal yourself just in 5 minutes, using a malware removal tool.

1. Boot Your PC In Safe Mode to isolate and remove Deftesrg.exe Monero Miner files and objects
2. Find malicious files created by Deftesrg.exe Monero Miner on your PC

Automatically remove Deftesrg.exe Monero Miner by downloading an advanced anti-malware program

1. Remove Deftesrg.exe Monero Miner with SpyHunter Anti-Malware Tool
Optional: Using Alternative Anti-Malware Tools

Vencislav Krustev

A network administrator and malware researcher at SensorsTechForum with passion for discovery of new shifts and innovations in cyber security. Strong believer in basic education of every user towards online safety.

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