Jundmd@cock.li Ransomware

Also Known As: jundmd@cock.li virus
Distribution: Low
Damage level: Severe

jundmd@cock.li ransomware removal instructions

What is jundmd@cock.li?

jundmd@cock.li is another ransomware-type virus discovered by malware security researcher, Petrovic. Once infiltrated, jundmd@cock.li encrypts most stored data and appends filenames with the ".jundmd@cock.li!!" extension. For example, "sample.jpg" becomes "sample.jpg.jundmd@cock.li!!". Following successful encryption, jundmd@cock.li generates a text file ("Help to decrypt.txt") and places a copy in each existing folder.

The new text file contains a short message simply stating that data is encrypted and that victims must contact cyber criminals to restore it. There is no additional information provided and, thus, it is currently unknown whether jundmd@cock.li uses symmetric or asymmetric cryptography. In any case, decryption requires a unique key generated individually for each victim. Restoring data without the key is impossible. All keys are stored on a remote server controlled by cyber criminals who blackmail victims for their release. After contacting developers of jundmd@cock.li, users affected by this ransomware are encouraged to pay a ransom in exchange for decryption keys. We strongly advise you to ignore all of these demands. Research shows that ransomware developers often ignore victims once payments are submitted. Note that many victims make payments and receive nothing in return. They simply support cyber criminals' malicious businesses. Therefore, ignore all requests to contact these people or pay any ransoms. Unfortunately, there are no tools capable of restoring data encrypted by jundmd@cock.li free of charge. Therefore, the only solution is to restore everything from a backup.

Screenshot of a message encouraging users to pay a ransom to decrypt their compromised data:

jundmd@cock.li decrypt instructions

The internet is full of ransomware-type viruses similar to jundmd@cock.li. The list of examples includes (but is not limited to) Mdk4y, Crypt0r, Vulston, Gerber, and JungleSec. These viruses are developed by different cyber criminals but their behavior is virtually identical - all encrypt data and make ransom demands. In most cases, the size of ransom and type of encryption algorithm used are the only major differences. Unfortunately, ransomware developers typically use RSA, AES, and other similar algorithms that generate unique decryption keys. Therefore, unless the malware is still in development or has certain bugs/flaws (e.g., the key is stored locally, is hard-coded, or similar), decryption without involvement of developers (contacting these people is not recommended) is impossible. We strongly recommend that you maintain regular data backups, however, store them on remote servers or unplugged storage devices, otherwise ransomware encrypts backups together with regular data.

How did ransomware infect my computer?

It is currently unknown exactly how developers proliferate jundmd@cock.li malware. In most cases, however, criminals use trojans, spam email campaigns, fake software updaters, and unofficial software download sources. Trojans are malicious applications that cause chain infections. Following infiltration, trojans open 'backdoors' and start downloading other malware into the system. Spam campaigns are used to proliferate malicious attachments (e.g., PDF files, Microsoft Office documents, executables, and so on). Once opened, these files stealthily download and install viruses. Fake software updaters infect systems by exploiting outdated software bugs/flaws or simply downloading and installing malware rather than promised updates/fixes. Unofficial software download sources (peer-to-peer [P2P] networks [torrents, eMule, etc.], freeware download websites, free file hosting sites, and similar) proliferate viruses by presenting them as legitimate software. In this way, users are tricked into downloading and installing malware.

How to protect yourself from ransomware infections?

The key to computer safety is caution. Therefore, pay close attention when browsing the internet and downloading, installing, and updating software. Carefully study each email received. If the message is irrelevant or has been received from a suspicious/unrecognizable, do not open any attached link/file and delete the email immediately. Furthermore, download software from official sources only, using direct download links. Third party downloaders/installers are often used to proliferate rogue apps, and thus these tools should not be used. Furthermore, keep installed programs up-to-date. To achieve this, however, use implemented functions or tools provided by the official developers. Having a reputable anti-virus/anti-spyware suite installed and running is also paramount, since these tools can detect and eliminate malware before it does any harm. If your computer is already infected with jundmd@cock.li, we recommend running a scan with Spyhunter for Windows to automatically eliminate this ransomware.

Text presented in jundmd@cock.li ransomware text file ("Help to decrypt.txt"):

All of your files are encrypted, to decrypt them write me to email : jundmd@cock.li
Your key:
-

Screenshot of the jundmd@cock.li ransomware process ("acrobac.exe") in Windows Task Manager (the name might differ depending on the malicious executable):

jundmd@cock.li ransomware in task manager

Screenshot of files encrypted by jundmd@cock.li (".jundmd@cock.li!!" extension):

Files encrypted by jundmd@cock.li

jundmd@cock.li ransomware removal:

Instant automatic removal of jundmd@cock.li virus: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of jundmd@cock.li virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

Step 1

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

Step 2

Log in to the account infected with the jundmd@cock.li virus. Start your internet browser and download a legitimate anti-spyware program. Update the anti-spyware software and start a full system scan. Remove all entries detected.

If you cannot start your computer in Safe Mode with Networking, try performing a System Restore.

Video showing how to remove ransomware virus using "Safe Mode with Command Prompt" and "System Restore":

1. During your computer start process, press the F8 key on your keyboard multiple times until the Windows Advanced Options menu appears, and then select Safe Mode with Command Prompt from the list and press ENTER.

Boot your computer in Safe Mode with Command Prompt

2. When Command Prompt mode loads, enter the following line: cd restore and press ENTER.

system restore using command prompt type cd restore

3. Next, type this line: rstrui.exe and press ENTER.

system restore using command prompt rstrui.exe

4. In the opened window, click "Next".

restore system files and settings

5. Select one of the available Restore Points and click "Next" (this will restore your computer system to an earlier time and date, prior to the jundmd@cock.li ransomware virus infiltrating your PC).

select a restore point

6. In the opened window, click "Yes".

run system restore

7. After restoring your computer to a previous date, download and scan your PC with recommended malware removal software to eliminate any remaining jundmd@cock.li ransomware files.

To restore individual files encrypted by this ransomware, try using Windows Previous Versions feature. This method is only effective if the System Restore function was enabled on an infected operating system. Note that some variants of jundmd@cock.li are known to remove Shadow Volume Copies of the files, so this method may not work on all computers.

To restore a file, right-click over it, go into Properties, and select the Previous Versions tab. If the relevant file has a Restore Point, select it and click the "Restore" button.

Restoring files encrypted by CryptoDefense

If you cannot start your computer in Safe Mode with Networking (or with Command Prompt), boot your computer using a rescue disk. Some variants of ransomware disable Safe Mode making its removal complicated. For this step, you require access to another computer.

To regain control of the files encrypted by jundmd@cock.li, you can also try using a program called Shadow Explorer. More information on how to use this program is available here.

shadow explorer screenshot

To protect your computer from file encryption ransomware such as this, use reputable antivirus and anti-spyware programs. As an extra protection method, you can use programs called HitmanPro.Alert and EasySync CryptoMonitor, which artificially implant group policy objects into the registry to block rogue programs such as jundmd@cock.li ransomware.

Note that Windows 10 Fall Creators Update includes a "Controlled Folder Access" feature that blocks ransomware attempts to encrypt your files. By default, this feature automatically protects files stored in the Documents, Pictures, Videos, Music, Favorites as well as Desktop folders.

Controll Folder Access

Windows 10 users should install this update to protect their data from ransomware attacks. Here is more information on how to get this update and add an additional protection layer from ransomware infections.

HitmanPro.Alert CryptoGuard - detects encryption of files and neutralises any attempts without need for user-intervention:

hitmanproalert ransomware prevention application

Malwarebytes Anti-Ransomware Beta uses advanced proactive technology that monitors ransomware activity and terminates it immediately - before reaching users' files:

malwarebytes anti-ransomware

  • The best way to avoid damage from ransomware infections is to maintain regular up-to-date backups. More information on online backup solutions and data recovery software Here.

Other tools known to remove jundmd@cock.li ransomware: