Security, Prevention and Cleaning an Infected Machine

I believe my machine is infected with a virus or malware. What are my options? How do I protect my machine from viruses and malware?

Technology Services will no longer support McAfee and McAfee ePO after 12/31/2016

After 12/31/2016, antivirus and full disk encryption cannot be managed via ePO. On the endpoint, the software will continue to function; however, it will need to be managed at the endpoint. That means it will no longer be logging virus and encryption information centrally. When the McAfee software reaches end of life, it will require manual intervention at each endpoint. The University will continue to support other popular antivirus software like Malwarebytes, which will not be affected by this change. The personal version of McAfee antivirus for Windows or Mac, previously downloaded from the WebStore, will also not be affected by this change. However, moving forward, we will no longer be offering a personal version of McAfee antivirus. Instead, the University of Illinois makes the following recommendations for antivirus software:

What you can do

We recommend that you begin to transition to other software solutions on your University machines.

For a list of available antivirus and encryption software, as well as instructions for use, please see our blog post:


For questions or concerns, please contact the Technology Services Help Desk at 217-244-7000 or by email at

How do I protect my machine?

Mac OS X


Note: Technology Services no longer supports McAfee. Any antivirus software is fine so long as it is updated.

I think I'm infected. How did this happen and what can I do?

Possible reasons:

  •     Not having operating systems and applications updated. This includes Windows, OS X version xyz, Java, Adobe flash, Antivirus, etc. Make sure all of these are current.
  •     Visiting questionable websites. This could be shareware sites, torrents, free streaming of premium channels, downloading .exe and zip files.
  •     Clicking on links in email that may be suspicious or ask for credentials. No respectful company asks for credentials via email.
  •     Bad luck. Sometimes it only takes an infected webpage or infected advertising banner to spread its grief to a machine.

Cleaning your machine (assuming you already have a current and functioning Antivirus program installed):

Mac - Download and run Malware Bytes for Mac. If you can't get to the internet, you can use a USB key to transfer the program from another computer.

PC -  Download and run Malware Bytes for Windows. It is recommended you run the scan in safe mode. If you can't get to the internet, you can use a USB key to transfer the program from another computer.

If you are having trouble installing, updating, and running Malware Bytes on your mobile device you can bring them into the Help Desk for assistance.

Other options for both Mac and Windows:

If Malware Bytes didn't help your situation, please contact the Help Desk via email or phone (217-244-7000) to arrange a referral to the OnSite Consulting team. This referral includes one hour of service at no charge to help clean your machine.

Keywords:blocked infection virus malware popups what to do with   Doc ID:64534
Owner:Security S.Group:University of Illinois Technology Services
Created:2016-06-28 14:47 CDTUpdated:2017-09-13 13:46 CDT
Sites:University of Illinois Technology Services
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