Frlock Ransomware
The Frlock Ransomware can be grouped alongside other threats such as Grlock, Itlock, Czlock and Zalock. The main difference between them is the extension they use to mark the files they encrypt, otherwise, their functionality is virtually identical. That is not so surprising having in mind that all of them are classified as variants belonging to the MedusaLocker Ransomware family.
When the Frlock Ransomware manages to infiltrate a computer successfully, it will proceed to initiate an encryption routine that will lock almost all of the files stored there. As we said, all affected files will have '.frlock' appended to their original names as a new extension. Afterward, the threat will deliver its ransom note in the form of files named 'Recovery_Instructions.html.' The ransom-bearing files will be generated in every folder containing encrypted data.
According to the instructions, the Frlock Ransomware uses a combination of AES + RSA cryptographic algorithms for its encryption. Affected users are instructed to contact the cybercriminals responsible for the threat to learn the exact amount of the ransom they will have to pay to receive the decryption key and software tool. The main communication channel is through a dedicated website that is accessible only through the TOR browser. As a secondary method, users can send an email to two addresses - 'helper@atacdi.com' and 'helper@buildingwin.com.' Up to 3 non-important files can be attached to the messages and will be decrypted for free.
The hackers behind the Frlock Ransomware claim that they have been able to collect data from the compromised computer. The collected information is supposedly being stored on a private server and will be either released to the public or sold to interested parties. To prevent this outcome, victims are urged to pay the asked ransom.
The full text of the Frlock Ransomware's note is:
'YOUR PERSONAL ID:
/!\ YOUR COMPANY NETWORK HAS BEEN PENETRATED /!\
All your important files have been encrypted!
Your files are safe! Only modified. (RSA+AES)
ANY ATTEMPT TO RESTORE YOUR FILES WITH THIRD-PARTY SOFTWARE
WILL PERMANENTLY CORRUPT IT.
DO NOT MODIFY ENCRYPTED FILES.
DO NOT RENAME ENCRYPTED FILES.
No software available on internet can help you. We are the only ones able to
solve your problem.
We gathered highly confidential/personal data. These data are currently stored on
a private server. This server will be immediately destroyed after your payment.
If you decide to not pay, we will release your data to public or re-seller.
So you can expect your data to be publicly available in the near future..
We only seek money and our goal is not to damage your reputation or prevent
your business from running.
You will can send us 2-3 non-important files and we will decrypt it for free
to prove we are able to give your files back.
Contact us for price and get decryption software.
hxxp://gvlay6u4g53rxdi5.onion/21-3L69YMmXGyCo9EEXDhxUpinUQ5ACt9YB-3AnnprikB3OWJ2NKZrBg0HGV1i8FScHn
- Note that this server is available via Tor browser only
Follow the instructions to open the link:
- Type the addres "hxxps://www.torproject.org" in your Internet browser. It opens the Tor site.
- Press "Download Tor", then press "Download Tor Browser Bundle", install and run it.
- Now you have Tor browser. In the Tor Browser open "{{URL}}".
- Start a chat and follow the further instructions.
If you can not use the above link, use the email:
helper@atacdi.com
helper@buildingwin.com
- To contact us, create a new mail on the site: protonmail.com
Make contact as soon as possible. Your private key (decryption key)
is only stored temporarily.
IF YOU DON'T CONTACT US WITHIN 72 HOURS, PRICE WILL BE HIGHER.'
