FBI PC Lock Trojan

Threat Summary

Threat Name:FBI PC Lock
Brief Description:This type of malware locks the computer or desktop making it unusable.
Detected as:Trojan.Ransomlock.Y


A new Windows locker Trojan is circulating the web that disguise as a notification page from FBI. Its headers and introduction messages contains the following text:

Federal Bureau of Investigation
Your PC is blocked due to at least one of the reasons specified below…

This FBI scam message claims that you have violated the copyright law for illegally using a copyrighted content. It then locks the computer and Windows, refusing your access unless you pay a fine of 100$.

It is evident that this activity is a fraud act committed by the same group who initiates Willkommem bei Windows Update. Although, FBI Windows Locker targets users worldwide, unlike their previous variant who aims for country specific victim. It attempts to rip-off money from computer users through scare tactics purporting to be from a legitimate government agencies.

One odd thing about this FBI Windows Locker is its payment process. It demands that penalty shall only be paid through MoneyPak. Since when does any Government institution instruct an offender to pay a fine through a payment system that is available from retail chain stores?

To release a blocked PC from this malware, follow the instructions on this page. It will require you to boot the computer from a USB device in order fix an infected boot sector and registry entries.

What are the Symptoms of Ransom Malware Infection?

FBI PC Lock Trojan will lock the PC, denying user’s access to Windows and all programs. It will replace the desktop with a ransom messages as show in the image below.

Screenshot of FBI Winlocker Trojan

Update: August 22, 2012
A new version of FBI PC Lock is in the wild. This time, it added a new payment scheme called Ultimate Game Card by PaybyCash.com. Here is the screenshot image.

FBI - Ultimate Gane Card

Procedures to Remove FBI PC Lock

Removal steps on this page will help you get rid of the threat effectively using tools and virus scanners. Please make sure that you will carry out the guide in exact order.

Create a USB Bootable Device

Ransom Trojans and viruses will lock the screen and makes the computer unusable. Common ways to deal with this type of infection is to boot the PC using another device. For this tutorial we will do a bootable disk that contains FBI PC Lock remover.

1. Download Kaspersky Rescue Disk from their official server. Click the button below. The file will be in .ISO format.

2. Download this utility called rescue2usb to record your .ISO file into the USB drive. Obviously you need a USB thumb drive at least 512MB in capacity. Plug it to the computer.

3. Once you have the two programs, double-click on the rescue2usb.exe to start creating a bootable USB drive.
4. You will see on the screen in the program called Kasperksy USB Rescue Disk Maker. Click on Browse and locate the .ISO file.
5. Under USB Medium, select the proper drive of your USB device.
6. Click on START. It will now begin to create a bootable USB drive with Kaspersky Rescue Disk in it.

Start the Computer with Kaspersky Rescue Disk.

1. You must set the computer to use other bootable device aside from hard drive. For this procedure, enable your BIOS to boot to USB device. If you are not familiar with this, please refer to your computer's instruction manual.

2. Another option is to access the Boot Menu right after you turn one the PC. It will present a Menu so that you can select a preferred boot drive. Select Removable Devices.

Boot Menu

3. Your computer will now start and load Kaspersky Rescue Disk.
4. If you see a message on the screen, please Press any key to enter the menu. You only have 10 seconds to do this, otherwise it will boot with the hard drive.

5. Next screen will be the interface language. Please select desired language to use.
6. You must run the program in Graphic Mode. This gives you easy access to all commands and menus.
7. End User License Agreement will appear. Please accept to continue using the program. Press 1 to proceed.

Using WindowsUnlocker to Remove FBI PC Lock

1.Click on the K button at the lower left corner of the screen.

2. Select Terminal on the list. It will open a command prompt.
3. Type windowsunlocker and press Enter on your keyboard.

4. On WindowsUnlocker menu, please type 1 to Unlock Windows. This utility will clean the registry for malicious entries.

5. After the cleanup process, it will display the menu once more.
6. Press 0 on your keyboard to exit WindowsUnlocker.

Run a Virus Scan

1. After removing FBI PC Lock, you need to delete all remaining components.
2. Click on the K to display the menu.

3. Select Kaspersky Rescue Disk. This will open the virus scanning tool.
4. You need to update the program first. Select My Update Center tab and click on Start update. This requires an Internet connection.

5. After updating the program, select Object Scan tab and click on Start Object Scan. You must scan the following:

  • Disk boot sectors
  • Hidden startup objects
  • All drives

6. Scanning the entire hard drive may take some time. Please let the scan to finish.
7. Once the scan process is complete, the tool will prompt you for preferred actions on detected threats. Deleting all threats is recommended.
8. You can now turn off the computer, unplug the USB drive, and start Windows in normal mode.

12 thoughts on “FBI PC Lock Trojan

  1. Ed in S.C. says:

    I got this trojan (Ransom FBI) today – demanding a $200 “fine”. I was running Firefox and had the security setting set as recommended above.

    I shut down manually, then rebooted in safe mode (Windows XP). Then I ran Malwareytes, and it found and removed the malware.

  2. Frank says:

    “Ray” There is also an entry in your menu start with the startup programs, so if you clean the computer and restart, it wil infect intself again. Start computer after cleaning in safe mode and remove program entry.

  3. jay says:

    First off i hope everyone is not accessing the internet on the main administrator account for the computer. if you were smart to make a secondary admin or a standard user account then there is no need for a backup/rescue disc to repair this problem. simply ctrl+alt+delete when lock screen happens switch to admin user, you will get in like normal, disconnect internet as precaution. Use a free malware remover like advanced system care 6 or IObit malware remover, and use CCleaner which is also free, do deep clean, remove malware, fix registry errors, and clean computer then shut down and restart computer as normal. go to the non-main admin or standard user login and all will be normal again. this damn lock screen has happened twice to me and both times i did the above with complete success. Do what ever works best for you, and be careful.

  4. this website says:

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  6. Kate Dobbeck says:

    I have to tell you that I was so happy when I found this!!! My friend’s laptop was locked up tighter than a drum (safe mode and the CD-ROM), I spent many hours looking for just what you had and you guys have my total appreciation and gratitude!!! Thank you sooooo much!

  7. K.Rollman says:

    This virus/malware is what is illegal. Whoever is doing this, needs to be stopped. This has happened on two of our computers, with no illegal use on our part. How do we stop these people?

  8. jmears says:

    Outstanding work here. What a relief to find such expert advice that worked as described. I’ve not used Kapersky until now – lets just say I’m a big fan now! My TrendMicro told me is cleaned a couple of trojans just minutes before my laptop got taken over. I also had all the aforementioned Smartscreen & Phishing & Malware settings already enabled. Nonetheless, my workday came to a screeching halt and has consumed 3 hours to get back on my feet (I’m not complaining ;)

  9. BillB says:

    Unfortunately, this has not worked. My computer will not boot from the USB drive even though I followed the instructions to the letter.

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