Uninstall GigaSurf50 from your device
Remove GigaSurf50 from your browser extensions
Reset your browser settings to default
Run a full antivirus and anti-malware scan
Delete suspicious programs recently installed
Clear browser cache, cookies, and site data
Check startup apps and disable unknown entries
Remove suspicious scheduled tasks
Change passwords if you entered any sensitive information
Update your operating system and browser
Reboot your device after cleanup
Contact your IT support or a malware removal specialist if it persists