Trojan – Win32/Rundas.a (Complete Removal)

Win32/Rundas.a just keeps popping up and you cannot remove it?

Trojans, together with ransomware, are the worst cyber infections of this century. Win32/Rundas.a is not an exception. This Trojan is a typical member of its family. It is highly destructive to your system. Once on board, it will wreck your device. Win32/Rundas.a works in the background. It can spend a good while on your machine before you even notice it. This gives it a chance to take root in your PC. It can delete files, including some that are essential for your system. Thus, it often causes the Blue Screen of Death. It can also remove programs and modify the system registry. The Trojan can cause a real mess on your computer. Eventually, some of your programs won’t run. You won’t be able to open and use your documents. Win32/Rundas.a cannot be beneficial for you. It is created to serve the malicious needs of its owners. If you are infected with this Trojan, you must know that nothing on your computer is private anymore. This pest can download malware on your computer. The Win32/Rundas.a Trojan is extremely dangerous. The longer this virus remains on your machine, the more dangerous it becomes. It has access to your system. Never forget that. It can “steal” your files and demand a ransom for them. This task is easier than you might think. The Trojan only needs to download a ransomware on your computer. Everything else will proceed automatically. Don’t waste time. Use a trustworthy anti-virus program to delete all malicious files and folders. Of course, you can use our guide to do it manually.

remove Win32/Rundas.a

How did I get infected with?

Win32/Rundas.a is known to rely on spam email campaigns for its spreading. This is a very common Trojan distribution method. The crooks write on behalf of well-known organizations. They are very imaginative and won’t hesitate to steal logos or fabricate stamps to lure you into downloading an attached file. They would disguise the Trojan as an invoice, job application or something entirely different. Before downloading an attached file, make sure you know who the sender is. For example, if you receive a letter from an organization or a company, visit the contact section on their official website. There, you will be able to find their authorized email address. Compare it with the one you have received a letter from. If the two addresses don’t match, delete the spam message immediately. Don’t forget that the authorities will contact you in an official way, not via email. Be vigilant and doubting!

Why is this dangerous?

Win32/Rundas.a has sneaked into your computer, now you must take immediate actions to remove it. Otherwise, you risk your privacy getting exposed, losing your files or even losing real money. Win32/Rundas.a has access to your system. It can enable remote control on your computer. This means that the hackers behind this parasite can control your device. This is a very serious threat. They can turn your machine into a part of a botnet. In some states being part of such illegal network is enough for a legal prosecution to take part. It doesn’t matter you turned your device into a part of a botnet. You will be the one to face the charges. All these issues aside, Win32/Rundas.a has some very trivial negative aspects. We already mentioned that the Trojan works in background. It uses your computer resources. To perform its destructive tasks, the Trojan needs a lot of CPU power and RAM. Your machine will slow down to a crawl. Some older machines may even crash. You will lose all unsaved data. Win32/Rundas.a will also generate web traffic to and from your PC. This may become a problem if you have a limited monthly usage. Consult your telecom if you are not sure about your current plan. Don’t waste time. Track this parasite down and delete it on the spot!

Manual Win32/Rundas.a Removal Instructions

STEP 1: Windows 8 Removal

STEP 2: Windows 7/XP/Vista Removal

STEP 1: Start Your Computer into Safe Mode with Networking in Windows 8

  • Make sure you do not have any floppy disks, CDs, and DVDs inserted in your computer
  • Move the mouse to the upper right corner until the windows 8 charm menu appears
  • Click on the magnifying glass


  • select Settings
  • in the search box type Advanced
  • On the left the following should appear


  • Click on Advanced Startup Options
  • Scroll down a little bit and click on Restart Now


  • Click on Troubleshoot


  • Then Advanced options


  • Then Startup settings


  • Then Restart


  • When you see this screen press F5 – Enable Safe Mode with Networking



STEP 2: Start Your Computer into Safe Mode with Networking in Windows 7/XP/Vista

  • Make sure you do not have any floppy disks, CDs, and DVDs inserted in your computer
  • Restart the computer
  • When you see a table, start tapping the F8 key every second until you enter the Advanced Boot Options

kbd F8

  • in the Advanced Boot Options screen, use the arrow keys to highlight Safe Mode with Networking , and then press ENTER.


STEP 3: Locate the startup location

  • Once the operating system loads press simultaneously the Windows Logo Button and the R key.


  • A dialog box should open. Type “Regedit”


Depending on your OS (x86 or x64) navigate to:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] or
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] or

  • and delete the display Name: backgroundcontainer

delete backgroundcontainer


  • Then open your explorer and navigate to:


where %LocalAppData% refers to:

delete Win32/Rundas.a
  • delete the whole folder

Double check with any antimalware program for any leftovers. Keep your software up-to date.

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