A new form of ransomware, carrying the extension .Clop was recently reported by malware researcher @JakubKroustek. The .Clop files virus is from the ransomware type and it aims to encrypt the files on the computers infected by it shorty after which add the ClopReadMe.txt ransom note, that contains extortion instructions on how the victim can pay a hefty ransom in order to get his or her files back. If your computer has been infected by Clop ransomware, we would suggest that you read this article carefully.
|Short Description||Clop ransomware aims to encrypt the files on the computers of victims and then the ransomware virus extorts victims to pay money in cryptocurrencies to get the files to work again.|
|Symptoms||Clop ransomware adds the .Clop to the encrypted files and they cannot be opened. The virus also drops the note ClopReadMe.txt.|
|Distribution Method||Spam Emails, Email Attachments, Executable files|
|Detection Tool|| See If Your System Has Been Affected by Clop Ransomware |
Malware Removal Tool
|User Experience||Join Our Forum to Discuss Clop Ransomware.|
|Data Recovery Tool||Windows Data Recovery by Stellar Phoenix Notice! This product scans your drive sectors to recover lost files and it may not recover 100% of the encrypted files, but only few of them, depending on the situation and whether or not you have reformatted your drive.|
.Clop Files Virus – Distribution Methods
Another possible mean of replication of the .Clop file ransomware is believed to be malicious macro code that may be inserted into documents. These documents may be sent to victims as a result of being embedded as e-mail attachments, where they may pretend to be invoices for purchases and several other types of seemingly important files, like:
- Invoices for online retail stores.
- Banking documents.
- Work-related documents.
Once the victim opens the document, it may ask him or her to “Enable Editing” by cicking on the button, similar to what the image below shows:
This triggers the malicious script, which may result in the unpacking of the malicious executable and running it automatically on the computer of the victim.
.Clop Ransomware – More Information
Once installed on the victim’s computer, the .Clop file ransomware is the type of virus that aims to infect computers and then extort the owner for money. The analysis of the virus so far detected several files, associated with Clop Ransomware:
File name: 3c8e60ce5ff0cb21be39d1176d1056f9ef9438fa.exe
File size 235.5 KB
File size:100.5 KB
Once .Clop file ransomware already infected a computer, the virus may drop it’s malicious executable directly on the desktop of the victim PC. Besides it, .Clop ransomware also drops it’s ransom note file, called ClopReadMe.txt. It looks like the following:
Your network has been penetrated.
All files on each host in the network have been encrypted with a strong algorithm.
Backups were either encrypted or deleted or backup disks were formatted.
Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover.
We exclusively have decryption software for your situation
No decryption software is available in the public.
DO NOT RESET OR SHUTDOWN – files may be damaged.
DO NOT RENAME OR MOVE the encrypted and readme files.
DO NOT DELETE readme files.
This may lead to the impossibility of recovery of the certain files.
Photorec, RannohDecryptor etc. repair tools are useless and can destroy your files irreversibly.
If you want to restore your files write to emails (contacts are at the bottom of the sheet) and attach 2-3 encrypted files
(Less than 5 Mb each, non-archived and your files should not contain valuable information
(Databases, backups, large excel sheets, etc.)).
You will receive decrypted samples and our conditions how to get the decoder.
Your warranty – decrypted samples.
Do not rename encrypted files.
Do not try to decrypt your data using third party software.
We don`t need your files and your information.
The final price depends on how fast you write to us.
Once the Clop ransomware virus has already compromised a given machine, it is reported in a VMRay analysis to interact with the following Windows system files:
The Clop ransomware virus may also extract the following information from victimised machines:
- System time.
- OS Type.
- Keyboard language.
In addition to this analysis of Clop Ransomware reports it to perform the following activities:
- Delays it’s own execution.
- Changes appearance of folders.
- Creates a lot of new files.
- Overwrites code in files.
The virus does not communicate over the web to cyber-criminal control servers and does not seem to delete any volume shadow copies of the machines it has infected.
Clop Ransomware – Encryption Process
The encryption of Clop ransomware is believed to be conducted with the aid of the RSA (Rivest-Shamir-Adleman) encryption algorithm. The ransomware virus may first scan for the file types it is set to encrypt. These files are usually only the usable files, of the following types:
- Virtual Drive.
Once the ransomware encrypts those files, it also renames them, making the file start to look unrecognisable:
Remove Clop Ransomware and Try to Restore .Clop Files
Before you actually start to think about removing Clop Ransomware from your computer, we would suggest you do a backup first.
For the removal Clop ransomware, we would suggest that you follow the removal instructions underneath. They have been created to help you delete the files of this ransomware either manually or automatically, depending on which situation is appropriate. If you have tried manual removal and you cannot seem to delete this ransomware, it is strongly recommended to remove it automatically with the aid of an advanced anti-malware software. Such tool will help you delete the Clop ransomware virus from your computer and then will also ensure that future protection for your computer is also activated.
If you want to try and restore .Clop encrypted files, the first thing you should be aware of is not to tamper with them in any way manually, because they may break down if you try to remove the extension. We have recommended several methods that may “go around” direct decryption with no 100% guarantee to be able to recover all your files, but they are your best bet, since there is no direct decryption of .Clop files at the moment.