Short bio

PUP.Optional.Webthreat is Malwarebytes' detection name for applications that try to contact IP addresses or domains that are associated with potentially unwanted programs (PUPs).

Type of infection

When an application is found to make contact to a site or domain that is listed as related to a PUP in the Malwarebytes Web-protection module, the application will be flagged as PUP.Optional.Webthreat.


PUP.Optional.Webthreat is detected to protect the user against applications that want to download additional PUPs or from PUPs contacting C&C servers.

Add an exclusion

Should users wish to visit a blocked Domain/IP address and exclude it from being blocked, they can add it to the exclusions list. Here’s how to do it.

  • Open Malwarebytes for Windows.
  • Click the Detection History
  • Click the Allow List
  • To add an item to the Allow List, click Add.
  • Select Allow a website.
  • Select Add a URL or Add an IP address and enter the domain/IP that you wish to exclude.
  • Click on Done and the domain/IP should appear in your Allow List.

Select your language

New Buy Online Partner Icon Warning Icon