Short Bio

PUP.Optional.ByteFence is the detection for an anti-malware program that constantly displays pop-up notifications of system infection in an attempt to convince users to buy their product.

Common infection method

PUP.Optional.ByteFence is usually installed by bundlers without users being aware of it.


Malwarebytes can remove this potentially unwanted program without further user interaction.¬†Should users wish to keep it, they can add the detections to the exclusions list. Here’s how to do it.