PUP.Optional.Softonic

Short bio

PUP.Optional.Softonic refers to the Softonic Downloader, an adware-supported bundler.

The downloader uses manipulative UI options to prompt users to install further adware that is difficult to uninstall.

Softonic had previously included a toolbar with their download that required admin privileges, and changed the user’s home page to softonic.com.

Some software previously included by Softonic has been considered actively malicious.

Common infection method

Softonic Downloader is found on Softonic affiliated downloads at en.softonic.com.

Avoidance advice:

  • Only download software from trusted sources. No matter how promising these programs appear, users are advised that they come with a price.
  • Do some online checking before you decide to install any helpful toolbars and browser extensions.
  • Carefully reading the EULA and Privacy Policy, however tedious, can also help prevent unwanted consequences.
  • Update your OS and active applications. 
  • Run Malwarebytes products.

Remediation

In most cases, the built-in uninstallers and uninstall guides are far from complete. It usually takes a full Threat Scan with Malwarebytes Anti-Malware and some additional tinkering to get back the user’s preferred browser settings.

Associated threats

  • PUP.Optional.Softonic.A

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