The notorious CryptoShield ransomware virus has been spotted out in the wild in a new version. The new iteration of CryptoShield 1.1 uses a custom file extension to encrypt files. It also drops a file thatcontains a ransom note that aims to make the victim of CryptoShield aware of the ransowmare’s presence on his computer. This CryptoShield 1.1 ransomware virus also has some incremental changes in comparison to the previous versions of the malware. In case you have become a victim of this ransomware virus, we recommend reading the following material to learn how to remove CryptoShield ransomware from your computer and how to restore your files in case they have been encrypted by it.
|Short Description||This CryptoShield 1.1 ransomware variant encrypts files with RSA cipher and asks a ransom payoff for decryption.|
|Symptoms||Files are enciphered and become inaccessible by any type of software. A ransom note with instructions for paying the ransom shows on the infected PC.|
|Distribution Method||Spam Emails, Email Attachments, File Sharing Networks, Malicious Executable in Torrent Trackers.|
|Detection Tool|| See If Your System Has Been Affected by CryptoShield 1.1 |
Malware Removal Tool
|User Experience||Join our forum to Discuss CryptoShield 1.1 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.|
New CryptoShield 1.1 Ransomware – How Does It Infect
Deception is the key to a successful infection and the people behind this iteration of CryptoShield 1.1 ransomware know this. This is why they use cunning e-mails to deceive users who are inexperienced into opening the files encrypted by this iteration of the ransomware.
These type of specific e-mails may contain either an embedded URL or an e-mail attachment in a .ZIP archive. These attachments may pass through most of the antivirus blockers on the e-mail platforms, because they are hidden with an obfuscation software.
Not only this, but the e-mails are created to resemble different companies or respectful organizations such as:
These e-mails may present the malicious attachment as an invoice, bill of arrangement and other types of files along with messages that prompt the quick reaction from the user, like a request to urgently open the attachment. This results in the virus successfully infecting the computer from which the attachment is opened.
After infection, the malicious attachment infecting with CryptoShield may connect to the remote distribution site from which the payload of CryptoShield 1.1 ransomware is downloaded.Independent malware researcher Karsten Hahn
(@struppigel) has tweeted the threat’s malicious executable with a very low detection ratio on 3 February, 2017:
CryptoShield Ransomware – Encryption and Ransom
After having already infected the computer, the CryptoShield 1.1 ransomware virus gets right down to business. The ransomware aims to perform multiple activities on the compromised computer. For once, it begins to modify the Windows Registry Editor, so that the malicious files run on Windows boot up. The usually targeted registry keys for this are the Run and RunOnce subkeys. But the virus may also drop it’s ransom note in the %Startup% folder.
This is not all, however. Bear in mind that CryptoShield 1.1 ransomware is a threat like no other. This is why, the virus may also touch specific system files that will allow it to control the processes in Windows Task manager. This gives the CryptoShield virus the power to discontinue database processes and other critical Windows Processes. These actions may allow it not only to encrypt videos, music, documents, and other important files, but to encrypt whole databases as well.
For the file encryption, CryptoShield 1.1 ransomware has so far used the RSA cipher. The encryption procedure happens by replacing bytes of the files with symbols belonging to the encryption algorithm. After encryption takes placed, the files are no longer able to be opened and they appear corrupt. Similar to the 1.0 version, the files carry the .cryptoshield file extension:
Another activity which CryptoShield 1.1 ransomware may perform after the encryption is issue administrative commands to delete shadow copies from the infected computer. One of those commands may be the vssadmin command in administrative mode.
To make sure it’s presence is known, CryptoShield 1.1 ransomware drops a ransom note. This ransom note not only aims to stress the seriousness of the situation but also makes sure the user is completely aware of what the situation is. The ransom note also contains instructions on paying a hefty fee to the cyber-crooks behind this CryptoShield 1.1 variant.
CryptoShield Ransomware – Remove and Try to Decrypt Files
As a bottom line, this iteration of CryptoShield 1.1 has some very interesting changes, primarily in how it is hidden from antivirus programs. With it, we see that cyber-criminals are also keeping up with the latest technologies to ensure their profits from online extortion. In case you have fallen to be a victim of CryptoShield 1.1 ransomware, advises are not to pay any ransom to cyber-criminals.
Instead, it is strongly suggestible to remove that virus by following the instructions below. Security experts advise to use a specific anti-malware software which will scan your computer automatically, so that you can be very fast and thorough in removing CryptoShield ransomware, especially if you do not have experience in malware removal.
After having removed this CryptoShield 1.1 ransomware versions, there is nothing left for you but to wait for security researchers to make a breakrough, which, if happens, we will make sure to update it and link on this article, so we advise checking it regularly.
Besides this, you also have several alternative file restoration options, like trying to salvage your files via shadow copies, attempting to get them back via data recovery software, tracking down online communication with a network sniffer or tampering with your files via a third-party decryptor. We have added some suggestions in relation to those methods down below on step “2. Restore files encrypted by CryptoShield 1.1” below and our advice is to backup your encrypted files and try those methods with copies of them on your affected system.