How to Remove mmdt ransomware
Your files are totally encrypted by a mmdt variant affect from stop ransomware, which marked by a new extension belongs to some types of malwares.
This type of attack can lock /encrypt/ damage your files. Then your file
name will end with mmdt , so you can’t obtain access to them at all.
mmdt ransomware
By adding its own extension to all the encrypted data. For example,
"video.mp4” will be titled as “video.mp4.mmdt ”.
When the mmdt encryption is accomplished, it will put text document
(_readme.txt) inside each folder that contains the encrypted files.

The used technique for mmdt file's encryption will release a unique
decryption key, it is different for each computer system.
The needed decryption key is hosted on a special server under the total
control by the attackers, who have actually launched the ransomware into the
internet joined by the victim id, the users are told to contact the
attackers through an e-mail or by telegram to pay the ransom in the quantity
of $980 and this quantity will have 50% discount rate, that mean the ransom
amount falls to $490 if the victim pay for them within 72 hours.
It's highly recommended that you do not pay the ransom, there is no warranty
that these online cyber criminals will keep their promises, the victims may
lose their money for nothing.
The Web is loaded with ransomwares comparable to the mmdt virus. It's
recommended for you to frequently save a copy for all your essential
documents to an external storage. like, the USB Flash Drive, external hard
disk drive, or using the cloud data storage services. Keeping the backups on
your system drive is very risky.
How .mmdt ransomware attack my files and why is my computer so slow?
- spam e-mails.
- free hosting websites.
- torrent software, Opening these types or clicking on the harmful links might harm the system.
How To protect from the mmdt virus Cyber-attack
- Do not open any suspicious e-mail attachments, specifically from unknown sender.
- Do not install unsecured freeware.
- Install anti-malware or an antivirus with last update even if free, to check each file you downloaded it from the web before opening it.
What about mmdt ransomware removal?
Mango school talked about this issue before, that you can remove ransomware from windows 10 & Remove Ransomware from windows 7 video tutorial.
After you successfully remove it, install antivirus to protect your files.
If you are not yet able to remove the mmdt virus, scan your pc with any
malware protection and remove the virus or install a new Windows to avoid
any new data encryption.
If you have an activated shadow copy, you will be able to recover files from
it.
You have to Change all your passwords used on the infected device because
the mmdt ransomware / virus will pull the passwords stored in your
browser and send them to the gangs.
How to Decrypt mmdt files?
Restoring solution for big “.mmdt files“
Try to remove .mmdt extension from some BIG files then open them.
this method depends on virus ability of reading and encrypting the file,
so it willnot add the filemarker. incase each file is larger than 2GB.
Please, leave a comment if that will work for you.
The criminals made changes in virus coding after August 2019 for the
new generated extensions. This includes Qqmt, Qqlo, qqlc, etc.
You can download free decryption tool: Decryptor for STOP Djvu.