PUP.Optional.Crossrider

Short bio

PUP.Optional.Crossrider is a Potentially Unwanted Program (PUP), specifically a type of adware. It offers a highly configurable method for its clients to monetize their software. The common method to infect the end-users is software bundlers. The installers usually resort to browser hijacking. Targeted browsers are Internet Explorer, Firefox, Chrome, and sometimes Opera. Crossrider not only targets Windows machines but Macs as well.

Impact

• CrossBrowse is an example of a more advanced variant of Crossrider

Common infection method

PUP.Optional.Crossrider installs are typically triggered by bundlers that offer software you might be interested in and combine them with adware or other monetizing methods.

Avoidance advice:

• Update your OS and active applications
• Run Malwarebytes products
• Read up on how to avoid potentially unwanted programs

Remediation

• A removal guide for RewardsArcade (typical Crossrider install) can be found on our forums.
• For some variants, it may be beneficial to read our guide to restore your browser.
• Malwarebytes Anti-Malware completely removes this threat, unless specified explicitly in a dedicated removal guide.

Associated threats

• PUP.Optional.Crossrider.A
• PUP.Optional.Crossrider.T
• PUP.Optional.CrossBrowse