Trojan:W32/Reveton is a ransomware application. It fraudulently claims to be from a legitimate law enforcement authority and prevents users from accessing their infected machine, demanding that a 'fine' must be paid to restore normal access.
CAUTION Manual removal is a risky process; it is recommended only for advanced users. Otherwise, please seek professional technical assistance.
Image 1 and 2: Enter 'Safe Mode'.
Image 3: Find and delete ctfmon.lnk from the Startup folder (click image to enlarge).
For more information, see Removing 'Police-themed' Ransomware.
Trojan:W32/Reveton is a variant in a family of ransomware applications that have been targeting European users in the last few weeks.
After the trojan successfully infects a machine, it will prevent the user from accessing the Desktop and will display a fraudulent message alleging that the system was locked by a local law enforcement authority; the specific authority mentioned varies depending on the affected user's location, though most of the samples we have seen mainly mentioned various European authorities.
The general activities of this malware, including screenshots showing the warning messages displayed by the trojan, can be seen in our Labs Weblog post discussing this topic:
Upon execution, it will create the following file:
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