Short bio

PUP.Optional.Multiplug is the detection for a type of browser hijacker that intercepts the connection between the browser and the Internet using “file-in-the-middle” tactics to push advertisements to the user. More modern versions of this threat are called Dotdo.

Type and source of infection

This potentially unwanted program (PUP) may also redirect browsers to different start pages and search browsers in order to monetize the user’s browsing.
The most common method if infection by this threat is through bundled software.


Malwarebytes protects users from PUP.Optional.Multiplug by using real-time protection.

block PUP.Optional.Multiplug

Malwarebytes blocks PUP.Optional.Multiplug


Malwarebytes can detect and remove PUP.Optional.Multiplug without further user interaction.

  1. Please download Malwarebytes to your desktop.
  2. Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
  3. Then click Finish.
  4. Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
  5. If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
  6. When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
  7. Restart your computer when prompted to do so.


Select your language