Short bio

Backdoor.Tofsee is Malwarebytes’ detection name for a Trojan that is polymorphic in nature.

Type and source of infection

Backdoor.Tofsee is capable of making changes to the settings on affected systems and stealing information from them. Once executed, it is capable of tracking users online activities, opening affected systems for infiltration to steal personal information and credentials, and changing browser and DNS settings.

Backdoor.Tofsee can be distributed via email as attachments. It can also be bundled with other programs.


Malwarebytes protects users from Backdoor.Tofsee by using real-time protection.

block Backdoor.Tofsee

Malwarebytes blocks Backdoor.Tofsee


Malwarebytes can remove Backdoor.Tofsee 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.

If you find that your system is affected by this, we advise to change your passwords immediately.

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