What is Cr1ptT0r Ransomware
Cr1ptT0r Ransomware is new type of ransomware, that uses network disk array vulnerability to infect user’s computers. This crypto ransomware encrypts data on network (cloud, NAS, Network Attached Storage) storage using a special encryption algorithm, and then requires a ransom of ~ 0.3 BTC to return files. Original title Cr1ptT0r is indicated in the ransom note and on the page on the OpenBazaar website. Developers call themselves a Cr1ptT0r team. The ELF ARM binary is used for Linux systems with a focus on embedded devices, but depending on the manufacturer it can be adapted for Windows. Ransomware does not append any extension, but uses _Cr1ptT0r_ file marker instead. Virus creates 2 files: _FILES_ENCRYPTED_README.txt and _cr1ptt0r_support.txt. First one is ransom note, that contains following message:
All your files have been encrypted using strong encryption!
For more information visit our website: https://openbazaar.com/store/home/QmcVHJWngBD67hhqXipFvhHcgv1RYLBGcpthew7d9pC3rq
If the website is unavailable you need to download the OpenBazaar application from: https://openbazaar.org/download/
You can then visit the store via this url: ob://QmcVHJWngBD67hhqXipFvhHcgv1RYLBGcpthew7d9pC3rq/store
We are also reachable via these instant messaging sotwares:
User ID: AE737ECB916BE24B41543BAD5B***
User ID: BM-NBcQxmkfyoVxSRE8WJQqEbXw1s63CMEq
Kind regards from the Cr1ptT0r team.
The Sodium crypto library and the asymmetric encryption algorithm “curve25519xsalsa20poly1305” (Curve25519, Salsa20, Poly1305) are used for encryption. The open 256-bit encryption key is located in the cr1ptt0r_logs.txt file, which also stores the list of encrypted files, and it is also added to the end of the encrypted files, just before the marker. Cr1ptT0r Ransomware uses the OpenBazaar site to “support” the affected users and selling the decoder. There are no decryption tool available yet, however, using instructions in this article can help you recover encrypted files. Follow the guide below to remove Cr1ptT0r Ransomware and decrypt your files in Windows 10, 8/8.1, Windows 7.
How Cr1ptT0r Ransomware infected your PC
Victims used the D-Link NAS DNS-320. If you have such a device model or close to it, then all models in the default settings contain the vulnerability that the attackers used. At the time of this writing, there was no information about which particular vulnerability was used. But it must be recalled that older models with outdated firmware are more vulnerable than those that received an update. We recommend you update your NAS device using this links: DNS-320 and DNS-320L. Virus can be also distributed by hacking through an unprotected RDP configuration, using email spam and malicious attachments, deceptive downloads, botnets, exploits, web injections, fake updates, repackaged and infected installers. Virus assigns certain ID with the victims, that is used to name those files and supposedly to send decryption key. In order to prevent infection with this type of threats in future we recommend you to use WiperSoft AntiSpyware, SpyHunter 5, BitDefender or any reputable antivirus program.
Download Cr1ptT0r Ransomware Removal Tool
To remove Cr1ptT0r Ransomware completely, we recommend you to use WiperSoft AntiSpyware from WiperSoft. It detects and removes all files, folders and registry keys of Cr1ptT0r Ransomware.
How to remove Cr1ptT0r Ransomware manually
It is not recommended to remove Cr1ptT0r Ransomware manually, for safer solution use Removal Tools instead.
Cr1ptT0r Ransomware files:
Cr1ptT0r Ransomware registry keys:
How to decrypt and restore your files
Use automated decryptors
Use following tool from Kaspersky called Rakhni Decryptor, that can decrypt your files. Download it here:
There is no purpose to pay the ransom, because there is no guarantee you will receive the key, but you will put your bank credentials at risk.
If you are infected with Cr1ptT0r Ransomware and removed it from your computer you can try to decrypt your files. Antivirus vendors and individuals create free decryptors for some crypto-lockers. To attempt to decrypt them manually you can do the following:
Use Stellar Phoenix Data Recovery Pro to restore your files
- Download Stellar Phoenix Data Recovery Pro.
- Select location to scan for lost files and click Scan button.
- Wait until Quick and Deep scans finish.
- Preview found files and restore them.
Using Windows Previous Versions option:
- Right-click on infected file and choose Properties.
- Select Previous Versions tab.
- Choose particular version of the file and click Copy.
- To restore the selected file and replace the existing one, click on the Restore button.
- In case there is no items in the list choose alternative method.
Using Shadow Explorer:
- Download Shadow Explorer program.
- Run it and you will see screen listing of all the drives and the dates that shadow copy was created.
- Select the drive and date that you want to restore from.
- Right-click on a folder name and select Export.
- In case there are no other dates in the list, choose alternative method.
If you are using Dropbox:
- Login to the DropBox website and go to the folder that contains encrypted files.
- Right-click on the encrypted file and select Previous Versions.
- Select the version of the file you wish to restore and click on the Restore button.
How to protect computer from viruses, like Cr1ptT0r Ransomware, in future
1. Get special anti-ransomware software
Use Bitdefender Anti-Ransomware
Famous antivirus vendor BitDefender released free tool, that will help you with active anti-ransomware protection, as additional shield to your current protection. It will not conflict with bigger security applications. If you are searching complete internet security solution consider upgrading to full version of BitDefender Internet Security 2018.
2. Back up your files
Regardless of success of protection against ransomware threats, you can save your files using simple online backup. Cloud services are quite fast and cheap nowadays. There is more sense using online backup, than creating physical drives, that can get infected and encrypted when connected to PC or get damaged from dropping or hitting. Windows 10 and 8/8.1 users can find pre-installed OneDrive backup solution from Microsoft. It is actually one of the best backup services on the market, and has reasonable pricing plans. Users of earlier versions can get acquainted with it here. Make sure to backup and sync most important files and folders in OneDrive.
3. Do not open spam e-mails and protect your mailbox
Malicious attachments to spam or phishing e-mails is most popular method of ransomware distribution. Using spam filters and creating anti-spam rules is good practice. One of the world leaders in anti-spam protection is MailWasher Pro. It works with various desktop applications, and provides very high level of anti-spam protection.