We're gradually updating threat actor names in our reports to align with the new weather-themed taxonomy. Learn about Microsoft threat actor names
Ransom:JS/Brolo.B
Aliases: No associated aliases
Summary
Microsoft security software detects and removes this family of threats.
This ransomware family can lock your web browser by showing you a message that asks you to pay a fine. The message can pretend to be from a law enforcement agency and tells you to pay money to unlock your browser.
They can also stop you from closing your web browser, using the address bar, or pressing any shortcut keys.
You can be infected with this threat when you visit or are redirected to a malicious website.
See the Ransom:JS/Brolo family description for more information.
- Microsoft Defender Antivirus for Windows 10 and Windows 8.1, or Microsoft Security Essentials for Windows 7 and Windows Vista
- Microsoft Safety Scanner
You should also run a full scan. A full scan might find other hidden malware.
Close your browser with Task Manager
You can regain control of your web browser by closing it using the Task Manager.
When you reopen your browser, make sure you don't click 'restore previous session'.
Get more help
You can also visit our advanced troubleshooting page or search the Microsoft virus and malware community for more help.
If you’re using Windows XP, see our Windows XP end of support page.
