Malwarebytes gets tougher on PUPs

Malwarebytes gets tougher on PUPs

Several years ago, I blogged that we would be increasing how aggressive we would be in detecting Potentially Unwanted Programs (PUPs) and our fantastic malware intelligence and research teams have delivered on that promise. Last year, we removed approximately 500 million traces of PUPs per month!

In response, a lot of the PUP developers are making efforts to circumvent our criteria and continue distributing their damaging software to users. This is why we are getting even more critical about what we call a PUP, and what we are going to be detecting and removing from user systems.

Earlier this morning, Malwarebytes posted a revision to the criteria that we use to identify PUPs. These changes are to help continue that fight against products and companies that scam users on the Internet.

Our efforts have resulted in making users’ systems safer and more productive by removing these kinds of software. Unfortunately, we have also received a lot of negative attention from the PUP developers. This has resulted in backlash ranging from nasty blog posts and comments from fake profiles defending the products to, of course, a mountain of letters with legal letterheads demanding that we stop.

Now some people might think of this as something that would slow us down, but we see it as proof that we are making a dent in the development and distribution of PUPs.

You can learn more about our new PUP criteria here.


April 20, 2012 – Malwarebytes was founded with the community in mind. Facebook, Twitter, our forums, and countless other outlets have allowed us to communicate with you, our community. We felt a major piece was missing. Welcome to Malwarebytes Unpacked. Malwarebytes Unpacked is the official Malwarebytes blog providing you with the latest exciting news and cutting edge research directly…

April 16, 2013 – It saddens me to report that at around 3 PM PST yesterday, Malwarebytes released a definitions update that disabled thousands of computers worldwide. Within 8 minutes, the update was pulled from our servers. Immediately thereafter, users flocked to our support helpdesk and forums to ask us for a fix. I want to offer my sincere…

April 18, 2013 – It’s been a rough week here at Malwarebytes, and I’m sure for many of you as well. We’ve spent the entire week focused on supporting the users affected by Monday’s false positive, as well as implementing systems to prevent this type of problem from ever happening again. If you have not yet received help, please route…

July 23, 2013 – Last week, security researcher Roy Castillo posted a recount of interactions with Facebook about a bug that he had found. Will bug bounty hunting become the norm?

July 26, 2013 – Malwarebytes Anti-Malware previously detected only harmful or deceiving PUPs. Today, We’re revising our policy to include PUPs that our users find annoying or misleading.






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