VPNFilter is a threat to a wide range of routers and storage devices (NAS).
VPNFilter can collect confidential information and interfere with network traffic, as it passes through an infected router, and also makes the router unsuitable for use. The malicious program can not be deleted by restarting the router.
Symantec offers a free online tool that performs a quick scan of the router's robots and the presence of malicious software.
You can check your router on this page.