From 2-spyware.com
WAGNER ransomware is a malicious program that encrypts[1] users’ personal files such as photos, videos, and documents. Because users do not have backups, such infections frequently result in permanent data loss. When a virus enters a system, it begins encrypting files. The .WAGNER extension is appended to the affected files. The icons also become white pages, making thumbnails unavailable. Encrypted files cannot be opened or viewed.