Trojan:HTML/Browlock

Classification

Malware

Trojan

HTML

Trojan:HTML/Browlock.[variant]

Summary

Trojan:HTML/Browlock is ransomware that prevents users from accessing the infected machine's Desktop; it then demands payment, supposedly for either possession of illegal material or usage of illegal software.

Removal

Automatic action

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

More

For more information, see Removing 'Police-themed' Ransomware.

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Technical Details

Trojan:HTML/Browlock has been reported to target users in multiple countries, including the United States, the United Kingdom and Canada. Typically, it will display a 'lock screen' purportedly from a local or federal law enforcement authority, claiming that the machine has been locked and encrypted due to 'illegal activities'. A 'fine' is then demanded to restore the system.

This malware was also covered in our Labs Weblog blogpost:

A lock screen used by one Browlock variant is shown below:

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