If your device has been infected with malware, you should take the following steps:

1. Disconnect your device from the internet and any other networks. This will prevent any further spread of the malware.
2. Install a reliable anti-malware software and run a scan. It will detect malicious files and disable or delete them.
3. Update your operating system and installed applications to the latest version, as they may contain important security fixes.
4. Restore some or all of your data from an external backup. If you don’t have one, create one immediately.
5. Change your passwords once you’re sure the device is free from malicious software.