Mancros+AI4939 ransomware virus. How to remove? (Uninstall guide)
New locksreen virus Mancros+AI4939 threatens to delete antivirus
Mancros+AI4939 ransomware is a new screelocker virus [1] which cyber security experts detected spreading as MancrosAI4939(1).exe file. When scanned with security software, the file typically comes up as Gen:Variant.Strictor.129956. This code stands for a very malicious cyber infection, most likely embedded with a complex rootkit technology [2] which allows it to hide its obfuscated files in remote corners of the infected computer system and evade elimination. While malware executables hide in the shadows, its ransom note is put on display for the victims to see. It pops-up on a lock screen immediately after the malicious script is run on the target computer. In the brief message, the criminals lay down their rules and demand victims to send 50 dollars to their Bitcoin wallet account. The extortionists threaten the victims with “trashing” their PCs irreversibly if they don’t receive the payment within 4 days after ransomware infiltration. The same fate is intended for the devices whose owners attempt to close, kill, remove the malware or try decrypting the encrypted files with some third-party decryption utilities. On top of it all, this ransomware is supposedly designed to delete or corrupt MalwareBytes, G-Data, AVG, Bullguard and other antivirus software to prevent obliteration. Since this parasite is still new and underinvestigated, we can’t tell if these claims are true. Nevertheless, you should not give in to panic and simply refuse to co-operate with the criminals, especially when the Bitcoin address they indicate for ransom transfer is not even active. Backup the encrypted files for future decryption and use alternative antivirus software such as Reimage to decontaminate the virus and remove Mancros+AI4939 components from your PC to prevent further damage.
Questions about Mancros+AI4939 ransomware virus
The amount of screenlocker viruses is growing rapidly these days as they offer an easy way for the criminals to frighten inexperienced users and swindle away their money. Screenlockers simply blocks the computers, so any information that might be stored on the affected devices becomes virtually inaccessible. Luckily, most of such viruses are either made as a joke or simply rely on scare tactics to generate profit, while having no impact on the files. In such cases, exiting the lock screen is enough to get back to regular business. In their essence, screenlockers are less dangerous than their encryption-based counterparts, so there is always a better chance to recover files in case of such virus attack. Our experts have a couple of suggestions prepared for users who may not know how to terminate lock screens and proceed to Mancros+AI4939 removal. You will find them below.
Select 'Safe Mode with Networking'
Select 'Enable Safe Mode with Networking'
Select 'Safe Mode with Command Prompt'
Select 'Enable Safe Mode with Command Prompt'
Enter 'cd restore' without quotes and press 'Enter'
Enter 'rstrui.exe' without quotes and press 'Enter'
When 'System Restore' window shows up, select 'Next'
Select your restore point and click 'Next'
Click 'Yes' and start system restore
Ransomware distribution is still a mystery
Mancros+AI4939 has just been discovered, so we are still missing information about a lot of its aspects including distribution. In such cases, we can only rely on the general knowledge about ransomware. Typical tendencies in this family of cyber infections show that malicious programs enter computers with the help of Trojans, exploit kits or are simply downloaded by the users as email attachments. Mancros+AI4939 developers may employ some if not all of these techniques to spread the malware around. So, you can never know when and from what direction this virus is going to hit. In order to protect yourself, keep data backups and regularly replenish them with new files from your PC.
Ideas on fixing Mancros+AI4939 affected PC
Mancros+AI4939 removal is a self-explanatory step which everyone should perform in case they have been infected with this nasty parasite. But after the elimination is complete, there come a bunch of problems which cannot be left unattended. For instance, your Windows registry may be cluttered with useless or malicious entries which could potentially help the lock screen to bounce back if not removed from the registry list. Thus, make sure you use reputable antivirus software and registry cleaners to remove all undesirable virus components from your PC for good.
To remove Mancros+AI4939 virus, follow these steps:
Remove Mancros+AI4939 using Safe Mode with Networking
Mancros+AI4939 lock screen may be bypassed by booting your computer in Safe Mode. Here is how to enable this mode:
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Step 1: Reboot your computer to Safe Mode with Networking
Windows 7 / Vista / XP- Click Start → Shutdown → Restart → OK.
- When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
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Select Safe Mode with Networking from the list
Windows 10 / Windows 8- Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
- Now select Troubleshoot → Advanced options → Startup Settings and finally press Restart.
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Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window.
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Step 2: Remove Mancros+AI4939
Log in to your infected account and start the browser. Download Reimage or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete Mancros+AI4939 removal.
If your ransomware is blocking Safe Mode with Networking, try further method.
Remove Mancros+AI4939 using System Restore
If the first method did not help you get rid of the lock screen, try terminating the process via Task Manager. Just locate the MancrosAI4939(1).exe in the running processes list, select it and click End Task. You may also follow the following steps to perform System Restore.
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Step 1: Reboot your computer to Safe Mode with Command Prompt
Windows 7 / Vista / XP- Click Start → Shutdown → Restart → OK.
- When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
-
Select Command Prompt from the list
Windows 10 / Windows 8- Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
- Now select Troubleshoot → Advanced options → Startup Settings and finally press Restart.
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Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window.
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Step 2: Restore your system files and settings
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Once the Command Prompt window shows up, enter cd restore and click Enter.
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Now type rstrui.exe and press Enter again..
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When a new window shows up, click Next and select your restore point that is prior the infiltration of Mancros+AI4939. After doing that, click Next.
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Now click Yes to start system restore.
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Once the Command Prompt window shows up, enter cd restore and click Enter.
Bonus: Recover your data
Guide which is presented above is supposed to help you remove Mancros+AI4939 from your computer. To recover your encrypted files, we recommend using a detailed guide prepared by 2-spyware.com security experts.If your files are encrypted by Mancros+AI4939, you can use several methods to restore them:
Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Mancros+AI4939 and other ransomwares, use a reputable anti-spyware, such as Reimage, Malwarebytes Malwarebytes or Plumbytes Anti-MalwareNorton Internet Security
About the author
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References
- ^ Ransomware– not only file encryption. Checkpoint. Check Point Software Blog.
- ^ Michael Kassner. 10+ things you should know about rootkits. Techrepublic. News, Tips, and Advice for Technology Professionals.