Con30 Ransomware – Virus Removal Guide

On this post, you can gain knowledge about the notorious Con30 virus. Also part of this page are Removal Guide, possible File Recovery of encrypted files, Ways to Protect the Computer, as well as Tutorial Video.

Con30 ransomware is a dominant computer virus that is also known as file-coder. Its main purpose for infecting the computer is to deny user’s access to their file by applying a complex algorithm technique. This encryption method is comparable to military grade method and having said that, it would be impossible for computer users to recover, read, or open the files that are affected by Con30 ransomware. Due to this condition, attackers are confident that victims are going to grand the ransom money in exchange for the decryption software.

How does Con30 virus spread?

Similar to most viruses and malware, this computer menace likewise uses the same deployment methods. Computer users may acquire Con30 ransomware from spam emails, malicious links, infected websites, software exploits, pirated applications, and from a separate Trojan Downloader contamination.

Of all the mentioned computer approaches being utilized by Con30 ransomware, it was noticed that the majority of computer infection was based on spam emails. This technique by attackers normally disguises as an email originating from legitimate organization discussing about important business matters. It contains subjects pertaining to shipping method, parcel delivery, payment instructions, and similar topic. In order to lure the email recipient into opening the attached file, the message states that important details are contained in the embedded file. Thus, as soon as email users open the file, Con30 ransomware virus executes and begin infecting the computer.

Other sources of Con30 ransomware also includes infected websites, malicious links, bad Botnets, pirated software, fake software updates, and dubious advertisements. To be safe from this attack methods, computer users must protect the computer with a powerful anti-virus or anti-malware applications.

File encryption by Con30

The moment that the ransomware is run on the computer, it immediately searches the drive for target files. After the assessment and once the public key was obtained from a remote server, Con30 ransomware begins the file encryption process. This notorious virus will apply a complex method to lock the data and also appends .con30 file extension. As a result the common file image.jpg will become image.jpg.id-A831D209.[con3003@msgsafe.io].con30 after the encryption process.

Screenshot of Con30 encrypted files

To be able to regain access to the files, Con30 ransomware authors are demanding specific amount of payment from the victims. As usual, computer users must contact the attackers on the stated email address and discuss the acquisition of the Con30 decryption tool.

Technical Details
Threat NameCon30 Ransomware, Dharma, CrySis
Threat TypeCrypto-virus, File Locker, Encryption Virus
Encryption MethodAES-256 combined with RSA-1024 Asymmetric Encryption
File Extension.id-(unique ID).[con3003@msgsafe.io].con30
Ransomware Note FileFILES ENCRYPTED.txt
Attacker’s emailcon3003@msgsafe.io
Virus AliasAhnLab-V3 : Trojan/Win32.Crysis.R213980
Avast : Win32:RansomX-gen
Avira : TR/Dropper.Gen
BitDefender : Trojan.Ransom.Crysis.E
Comodo : TrojWare.Win32.Crysis.D@6sd9xy
Elastic : Malicious (high Confidence)
Emsisoft : Trojan.Ransom.Crysis.E (B)
ESET-NOD32 : A Variant Of Win32/Filecoder.Crysis.P
Kaspersky : Trojan-Ransom.Win32.Crusis.to
Malwarebytes : Ransom.Crysis
McAfee : Ransom-Dharma!47576351E4B2
Microsoft : Ransom:Win32/Wadhrama!hoa
Panda : Trj/GdSda.A
Sophos : ML/PE-A + Troj/Criakl-G
Symantec : Ransom.Crysis
TrendMicro : Ransom.Win32.CRYSIS.SM

Backup your files

One important step before proceeding with the procedures below is to backup your files. Ransomware are not the same. Each has its unique sets of payloads aside from encrypting the files with complex method. Others tend to delete the infected files after certain period, while others keep them concealed on hidden places. In addition, ransomware decryption tools are not guaranteed to be perfect, there are instances that files suffer from damages during the decryption process.

So, create a backup copy of your entire Con30 encrypted files right now.

Con30 Ransomware Removal Guide

First thing to do is remove the Con30 virus before attempting the decryption. Remember that as long as the ransomware is active, it will repeatedly encrypt the files on the compromised computer.

Infection of Con30 ransom virus is dangerous to the system because it can inject files that runs each time Windows starts. To prevent the malicious files from loading, Windows operating system must run with minimal process and it can be done through SafeMode With Networking.

Quick Fix - Scan the PC with Combo Cleaner for Windows

Combo Cleaner is a trusted PC security and optimization tool equipped with powerful virus and malware detection engine. This program can get rid of ransomware like Con30 through this procedure.

1. Download the application from the following page:

2. Save the file to your preferred location.

3. Double-click the downloaded file CCSetup.exe and install with the default settings.

CC for Windows Installation

4. At the end of the setup process, click Finish to run Combo Cleaner.

5. The tool will update the signature file, please wait for this process to complete.

6. To begin checking for threats like Con30, click on the Start Scan button. Wait for this scan to finish.

CC for Windows Start Scan

7. At the end of the scan process, click on Remove all threats to delete Con30 ransomware including all malicious objects from the computer.

Free features of Combo Cleaner for Windows include Disk Cleaner, Big Files finder, Duplicate files finder, and Uninstaller. To use antivirus, privacy scanner, and to delete identified threats, users have to upgrade to a premium version.

Please continue with the succeeding removal procedures if your are comfortable to manually get rid of the threat and malicious items linked with it.

Stage 1 : Temporarily Disable System Restore on Windows OS

Because Con30 and relevant virus is capable of reinstating itself by exploiting the System Restore of Windows, we suggests that you temporary disable System Restore while executing the steps. This option is also helpful to effectively run a full scan on the computer.

Do not forget to enable back System Restore after completing the removal of Con30 ransomware. This feature is vital in reinstating the operating system to previous normal working condition in case of problems or conflicts occurs.

Stage 2 : Start Windows in Safe Mode With Networking

Windows 10 Guide

1. Click on Windows logo and select Power icon when options pop-ups.
2. Select Restart from the options while pressing Shift key on the keyboard.
3. Choose an Option window will appear, select the Troubleshoot button.
4. On next window, please choose Advanced Option.
5. On Advanced Option window, click on Startup Settings and then, click Restart button to reboot the computer.
6. When Windows boot on Startup Settings, press function key F5 or number 5 on keyboard.

A simpler alternative for Windows 10 users is to scan the computer with Microsoft Defender Offline. This will run a virus scan in the recovery environment.

Windows 8 Guide

1. Click Windows Start icon at the lower left section of the screen.
2. Open Search window and type Advanced in the field. It will open General PC Settings.
3. Click on Advanced Startup and then, click on Restart Now button.
4. Once the computer starts in Advanced Startup option menu, select Troubleshoot.
5. Next, click on Advanced Options to reveal the next section.
6. Click Startup settings and then, click Restart button to boot the PC in Startup Settings.
7. Use function key F5 or number key 5 to Enable Safe Mode with Networking.

Stage 3 : Scan the Computer with Sophos Antivirus

Ransomware files are placed deeply into the system and on various locations, thus, thorough scanning is vital to totally remove Con30 virus. Aside from our suggested tool, you may also run your own security program.

To remove Con30 automatically, scanning the computer with this efficient anti-malware tool is suggested. This scanner does not just uncover known threats like viruses or malware, it is also effective in discovering hazardous ransomware like Con30.

1. Download Sophos Virus Removal Tool from the link below. Save the file on your computer where you can easily access it.

2. Once the download completes, browse the location of the file. Double-click to run the program and begin the install process.

3. On first windows of installation wizard, click Next to continue. Then, it will display the program’s License Agreement. You need to Accept the terms in order to proceed. If Windows prompts for User Account Control, please click Yes to proceed.

Screenshot of Sophos EULA Page

4. On succeeding windows, click Next or Continue to carry on with the installation. After completing the installation process, Launch Sophos Virus Removal Tool.

5. Internet connection is required when running this virus scanner in order to download important updates. Make sure that everything is up-to-date to effectively remove Con30 ransomware and other relevant viruses.

6. Click the Start Scanning button to inspect the computer. This will check the system for presence of malicious objects, malware, and viruses. The tool reveals items that were found linked to Con30 and other suspicious entities. Be sure to remove all identified threats.

Screenshot of Sophos Virus Scan

The above procedures should have totally eliminated Con30 ransomware. However, if you found that there are still remnants of the virus, please proceed to succeeding procedures below.

Stage 4 : Double-check with Microsoft's Malicious Software Removal Tool

1. Download the free scanner called Malicious Software Removal Tool.

Download MSRT

2. The tool automatically checks the operating system and suggest appropriate download version. Click on Download button to begin. Save the file to a convenient location, preferably on Desktop.

3. After downloading the file, Windows will prompt that download has completed. Click Run to start scanning for Con30 ransomware. Another option is to browse the location folder and double click on the file to run.

MSRT Icon

4. The tool will display Welcome screen, click Next. Please note the message "This tool is not a replacement for an antivirus product." You must understand that this program is made specifically to find and remove malware, viruses, Trojans, and other harmful elements on the computer. It was not designed to protect the computer.

MSRT Welcome

5. Next, you will see Scan Type. Please choose Full Scan to ensure that all Con30 ransom virus entities and other harmful files left on the computer will be found and removed. For advanced computer user, you can opt for Customized Scan, if there are other drives or folders you wanted to include in this scan.

MSRT Scan

6. Full scan may take a while, please wait for Malicious Software Removal Tool to complete the tasks. However, you may cancel the scan anytime by clicking on the Cancel button.

MSRT Scan

7. After scanning, the tool will reveal all identified threats. There may be other threats that our first scan fails to detect. Please remove/delete all detected items.

8. When removal procedure is complete, you may now close Malicious Software Removal Tool. We hope that Con30 ransomware have been completely deleted from the computer. Please restart Windows to proceed with the normal operation.

Recover Files from Con30 Ransomware Infection

On this section, we will provide ways to decrypt files infected with Con30 ransomware. Aside from dedicated decryption software and common tools, other options for file recovery are provided. As much as we can, we will update this area whenever there is new and more suitable decryption tool was made available.

Decrypting Con30 infected files with Emsisoft Tools

This service from Emsisoft is helpful in unlocking encrypted files without paying the ransom. It gives three ways to detect the ransomware and provide suitable recovery method:

Upload ransom note – This is usually the .txt or .hta files that was generated by Con30 ransomware.

Upload the encrypted file – The actual encrypted file. Choose the one that is less than 8MB in size.

Contact information – Enter the email address or any links provided as it appears in the ransom note of Con30 virus.

Emsisoft Tools

After submitting any of the appropriate data, Emsisoft will attempt to identify the ransomware and provide keys if there are available.

Option 1: Windows Previous Version Tool

Windows Vista and Windows 7 have a feature called Previous Versions. However, this tool is only usable if restore point was made prior to ransomware infection. To use this tool as "recovery option" for files encypted by Con30 virus, please follow these steps:

1. Open My Computer or Windows Explorer.

2. Right-click on the affected files or folders. From the drop-down list, please click on Restore previous versions.

3. New window will open display all backup copy of files and folders you wanted to recover. Choose the appropriate file and click on Open, Copy, or Restore. Restoring selected files overwrites the current locked files on the computer. The tool is not actually recovering files encrypted by Con30. Instead, it restores files from backup copy.

Option 2: Use ShadowExplorer to restore files encrypted by Con30 Ransomware

Just like Previous Version tool, ShadowExplorer is taking advantage of shadow copy created by Windows. This tool allows you to retrieve older version of files before it was encrypted by Con30 ransomware.

1. Download ShadowExplorer from the official web site.

2. Install the program with the default settings.

3. The program should run automatically after installation. If not, double-click on ShadowExplorer icon.

4. You can see the drop-down list on top of the console. Please select proper drive and the most recent point-in-time shadow copies of files you wish to restore prior to Con30 ransomware infection.

shadow3

5. Right-click on the Drive, Folder, or File you wish to restore and click Export...

6. Lastly, ShadowExplorer will prompt for location where you want to save the copy of recovered files.

How to protect the computer from Con30 ransomware?

After the removal of the ransomware, it is important to prevent similar incident from happening again. In order to protect the computer effectively, computer user must know how Con30 ransomware was able to infect the computer. To minimize the possible infection, staying away from the common sources of this virus is crucial.

How Con30 ransomware can infect your computer?

The method of infecting the computers was found to be similar as other common viruses. Though, ransomware like Con30 is seen to have efficient deployment via spam email messages, web injectors, malicious software installers, misleading online advertisements, and through another virus infection.

Once the virus is executed, it immediately infects the system. Then, Con30 ransomware communicates to remote server so that unique key can be generated for the specific computer. After acquiring the key, it starts to decrypt target files using a complex method that is almost unbreakable. On the last stage of the attack, Con30 ransomware demands for ransom money as payment for the decryption tool. To further understand the attack scheme, we have included an infographic below.

Infographic image of ransomware attack stages
You can print, download, or share the infographic by clicking the image.

Securing the computer against ransomware attack

Do a Regular File Back-up - Always backup your data on a separate storage devices such as external hard drives, optical discs, or online backup services.

Keep Your Software Updated - Make sure that you have the latest software updates especially on the operating system. Recent updates often contain vital security patches to help protect the computer against all forms of threats.

Install a Security Program - Protect the computer with effective anti-virus application using efficient real-time scanning. Regularly run a complete scan to check the computer for presence of malware.

Protect your files with Controlled Folder Access (Windows 10)

For Windows 10 users, aside from protecting the computer using anti-virus or anti-malware programs, one way to protect against ransomware attack is by using Controlled Folder Access. This feature of Windows Defender Security Center may not prevent the Con30 ransomware infection, but it can protect the folder and files in general. Follow the steps to enable Controlled Folder Access in Windows 10.

1. Go to Windows 10 Taskbar and search for Windows Defender Security Center.

2. Open Windows Defender Security Center and click on Virus & Threat Protection icon.

Virus and Threat Protection

3. On next window, please click on Ransomware Protection.

4. Under Controlled Folder Access section, switch the slider to On. That will enable the feature and protect the folder against Con30 or any type of ransomware.

Controlled Folder Access

5. Click on Protected Folderslink to include additional folders. Make sure that folders where important files are located should be included in the list.

Add Protected Folder

Troubleshooting Guide

Certain programs maybe blocked by Controlled Folder Access feature. To fix the issue, simply have the specific program to be white listed.

1. Under Protected Folders, click Allow an app through controlled folder access.

2. Next, click the Add an allowed app and include the target executable file.

This Controlled Folder Access feature is one way to protect files against Con30. Other important things to do in keeping files safe against ransomware is through early prevention like keeping programs updated, install an efficient security program, an do regular file backup on a separate media drive.


Tutorial video to remove Con30

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