Basesystem.dmg Virus File – How to Delete It (Mac)

Basesystem.dmg Virus File – How to Delete It (Mac)

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This article has been created to help explain what is the basesystem.dmg file and how you can remove it from your Mac permanently.

A file, called Basesystem.dmg has been reported by users on Apple Community forums to request victims to enter their passwords and IDs to delete it. The file, however seems to not go away via these methods and returns a “denied access” type of error message. This is likely because the Basesystem.dmg file may be running on your Mac as a result of a virus possible residing in it and conducting malicious activity. If you want to remove the Basesystem.dmg virus effectively from your Mac, we recommend that you read this article thoroughly.

Threat Summary

NameBasesystem.dmg Virus
TypeVirus for Mac OS
Short DescriptionMay contain spyware elements in it and may conduct malicious activities in the background of your Mac.
SymptomsRuns actively in the background and cannot be shut down or deleted.
Distribution MethodVia malicious e-mail spam messages or via malicious web links.
Detection Tool See If Your System Has Been Affected by Basesystem.dmg Virus


Combo Cleaner

User ExperienceJoin Our Forum to Discuss Basesystem.dmg Virus.

Basesystem.dmg – How Did I Get It

The main method via which you may have started seeing this

.dmg file is believed to be via web links or files that are sent directly to victims. Since the Basesystem.dmg is a file that contains some form of MacOS installer, it may only pretend it is such to fool users. In reality, the infection file of this virus is believed to be spread via e-mail by being uploaded as a seemingly legitimate document of what appears to be an important nature. The e-mails may also be cleverly designed to imitate legitimate messages coming from big companies, like PayPal, eBay and others.

In addition to via e-mail, the Basesystem.dmg may come as a result of an installation of an app you may have downloaded from a suspicious third-party site. These types of programs may appear as useful and free, but once they are installed, they are very hard to remove and their general purpose is to show advertisements and run suspicious processes, like Basesystem.dmg.

Basesystem.dmg – More Information

Once the Basesystem.dmg file is ran on your Mac, it may begin performing different malicious activities. These may be of all tpes, but the main one is spyware and virus actions. The bad news here is that once you try to delete Basesystem.dmg, the Mac asks to enter the password and identify as an administrator. If you have done that, we strongly suggest that you change your passwords immediately. In addition to this, when users try to stop the file in Activity Monitor and enter their passwords, the following notification is returned:

“The operation can’t be completed because you don’t have permission to access some of the items”

In addition to this, the Basesystem.dmg may perform various malicious activities on the Macs of victims, such as:

  • Obtain and log the keystrokes you type.
  • Take screenshots on your Mac.
  • Take control of your Mac’s camera.
  • Copy files from your Mac.
  • Update itself.
  • Download other malware.

But this is not all of the risks that are associated with Basesystem.dmg virus, since it may also download and run a miner on your Mac that may use your CPU and GPU power to conduct cryptocurrency mining actions at your expense.

Remove Basesystem.dmg from Your Mac

If you want to remove the Basesystem.dmg virus from your Mac, we recommend that you backup your files beforehand, just in case.

To remove Basesystem.dmg virus, we recommend that you follow the removal instructions underneath. They have been created with the main idea to help you to remove this virus’s files from your Mac either manually or automatically. The main idea behind this is to assist you in deleting the virus the best way suitable for you. Be advised that the most effective removal method still remains to be via an advanced anti-malware program that can cope with Mac viruses. Such software aims to scan your Mac for different unwanted and malicious files and then secure it completely plus make sure that your Mac remains protected against future infections as well.


Ventsislav Krastev

Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.

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