|Short Description||A winlocker type of ransomware preventing access to user PC.|
|Symptoms||Locks the screen out and demands a ransom. The ransom note is in Slovakian and has the Slovakian police logo in it.|
|Distribution Method||Exploit Kits. Spam Mail Campaigns, Malicious Redirects, Spoof Mails|
|Detection tool||Download Malware Removal Tool, to See If Your System Has Been Affected By ‘Policajného Zboru’|
This particular trojan from the Urausy family targets primarily Slovakian PCs. However, some attacks have also been reported to be in random places all around the world. This ransomware has several variants and its scam involves locking users completely out of their computers, asking ransom money to bring access back. Such law enforcement type of ransomware attacks are reported by ESG researchers to increase in near future. The reason it is effective in some cases is the fact that it displays a police logo, claiming the user has committed a crime, and the law has locked the computer. Security engineers recommend not to pay any ransom because police forces would never lock the computer of random users.
‘Policajného Zboru’ – How Did I Get Infected
This particular virus infects users in a similar way to trojan horses – by a malicious executable on the computer. It is most often embedded in a document that may be an attachment in an email or may resemble a legitimate application. This is common in massive spam mail campaigns. Most spam emails resemble notorious services like PayPal,eBay or someone significant or famous.
Another way of distribution is via social networks. Some viruses affect users and write messages and post on their behalf. This is also a very effective method because people who are online friends tend to trust each other in social networks.
Also, you may have exhibited a malicious redirect and, therefore, a drive-by download. A drive-by download is when you open a malicious link, and it may execute devious code that ‘injects’ an exploit and downloads the malware automatically on your computer.
More about ‘Policajného Zboru’ Ransomware
Once on your computer, Zboru may run different executables that could be programmed to create registry entries that may lock your screen and disable your access to your computer indefinitely. After closing out the screen, it displays a ransom note with instructions on how to pay your ‘police fine’ using different anonymous services that cannot be traced back to the cybercriminals.
There are reports by ESG that this Urasy malware has mechanisms that determine the location of the computer, based on its IP address and display the message corresponding to the variant. If Urausy malware detects that the computer is in Slovakia, it activates the ‘Policajného Zboru’ variant.
The threatening message displayed by this ransomware poses as a the hand of law enforcement that is ‘convicting’ the user of different crimes, such as pornography, illegal downloads, theft and money laundering. It is highly advisable to disconnect immediately the computer from the internet in case you experience this uncomfortable situation.
Removing ‘Policajného Zboru’ Ransomware and Protecting Your Files
To get rid of this threat, you should isolate it first, so it doesn’t do additional damage on your computer. To do this, disconnect the computer from the web and run it in safe mode. Then you should scan your computer with a reputable anti-malware program to get it rid of all Urasy associated files and objects. To do this, you should download the anti-malware from a safe PC. You can find more information in the removal guide below.
After removal, it is important that you set up your backup and know how to activate it when your PC is damaged. To do, check the after mentioned tutorial on the subject of ransomware protection.
1. Start Your PC in Safe Mode to Remove ‘Policajného Zboru’.
For Windows XP, Vista, 7 systems:
1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.
– For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.
3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.
4. Log on to your computer using your administrator account
While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.
For Windows 8, 8.1 and 10 systems:
Step 1: Open the Start Menu
Step 2: Whilst holding down Shift button, click on Power and then click on Restart.
Step 3: After reboot, the aftermentioned menu will appear. From there you should choose Troubleshoot.
Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.
Step 5: After the Advanced Options menu appears, click on Startup Settings.
Step 6: Click on Restart.
Step 7: A menu will appear upon reboot. You should choose Safe Mode by pressing its corresponding number and the machine will restart.
2. Remove ‘Policajného Zboru’ automatically by downloading an advanced anti-malware program.
To clean your computer you should download an updated anti-malware program on a safe PC and then install it on the affected computer in offline mode. After that you should boot into safe mode and scan your computer to remove all ‘Policajného Zboru’ associated objects.
Security engineers recommend that you back up your files immediately, preferably on an external memory carrier in order to be able to restore them. In order to protect yourself from ‘Policajného Zboru’ (For Windows Users) please follow these simple instructions:
For Windows 7 and earlier:
1-Click on Windows Start Menu
2-Type Backup And Restore
3-Open it and click on Set Up Backup
4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next.
5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next.
6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by ‘Policajného Zboru’.
For Windows 8, 8.1 and 10:
1-Press Windows button + R
2-In the window type ‘filehistory’ and press Enter
3-A File History window will appear. Click on ‘Configure file history settings’
4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup.
5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from ‘Policajného Zboru’.
Enabling Windows Defense Feature:
1- Press Windows button + R keys.
2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run.
3- A System Properties windows should appear. In it choose System Protection.
5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection.
6- Click on Ok and you should see an indication in Protection settings that the protection from ‘Policajného Zboru’ is on.