Sext ransomware – new cryptovirus demanding $600 worth of Bitcoins for the decryption tool

Sext ransomware is a newly created cryptovirus that completely locks all personal files on the infected device. This virus encrypts all data with a very strong RSA algorithm[1]. All non-system files are appended with a .sext extension, hence the name of the ransomware. With this cryptovirus, a new lineage of LockDown ransomware family has been started.
After the Sext ransomware has finished encrypting files, it creates ransom notes, named HELP_DECRYPT_YOUR_FILES.txt. Within these notes, cybercriminals are reassuring the victims that they can retrieve their files, for a payment of $600. The ransom must be forwarded to the perpetrators in cryptocurrency Bitcoin to their crypto-wallet – 15zw6QrCbd5r8CD2eySMoTktstuEgD1Dzs. As in most ransomware, like FUSION or Termit, developers of this virus want to prove that they really do have the necessary decoding tool/key, and offer to send them one file for a test decryption. Victims are required to contact the criminals via email – getyourdata@protonmail.com with their unique assigned personal ID.
| name | Sext ransomware, .sext virus |
|---|---|
| type | Malware, ransomware |
| family | LockDown |
| appended extension | .sext |
| ransom note | HELP_DECRYPT_YOUR_FILES.txt |
| ransom amount | 600 USD is the asking price for the promised decryption tool/key |
| criminal BTC wallet | 15zw6QrCbd5r8CD2eySMoTktstuEgD1Dzs |
| Criminal contact details | getyourdata@protonmail.com |
| virus removal | Reliable anti-virus software should be used to remove Sext ransomware |
| System fix | Use a powerful FortectIntego tool after the sext virus removal to tune-up your system and avoid hazardous PC behavior |
Based on statistics from VirusTotal.com[2], 55 out of 72 anti-virus engines detected this cryptovirus before it infected the computer systems. This shows the importance of reliable anti-malware software like MalwarebytesMalwarebytes or SpyHunterCombo Cleaner. Use any of these apps to automatically and completely remove Sext ransomware from your contaminated device.
However, Sext ransomware removal won't decrypt your files. Nonetheless, it is still highly inadvisable to get in touch with the cybercriminals or even worse – complying with their demands. People not only lose their data but their money too. Experts[3] advise deleting the virus immediately and fixing any system settings and system file issues with a mighty system tune-up FortectIntego tool. Only then start restoring your data from backups and fully using your virus-free systems.
The whole criminal ransom note in files HELP_DECRYPT_YOUR_FILES.txt reads:
Oops All Of your important files were encrypted Like document pictures videos etc..
Don't worry, you can return all your files!
All your files, documents, photos, databases and other important files are encrypted by a strond encryption.How to recover files?
RSA is a asymetric cryptographic algorithm, you need one key for encryption and one key for decryption so you
need private key to recover your files. It's not possible to recover files without private key.
The only method of recovering files is to purchase an unique private key. Only we can give you this key and only
we can recover your files.What guarantees you have ?
As evidence, you can send us 1 file to decrypt by email We will send you a recovery file Prove that we can
decrypt your filePlease You must follow these steps carefully to decrypt your files:
Send $600 worth of bitcoin to wallet: 15zw6QrCbd5r8CD2eySMoTktstuEgD1Dzs
after payment ,we will send you Decryptor software
contact email: getyourdata@protonmail.comYour personal ID:

Techniques used by criminals to contaminate computers
Cybercriminals are trying really hard to outsmart everyday computer users, or catch them “sleeping”. They are using the same methods to spread their malicious creations for years now. People should be more careful while doing these things:
- Opening any emails, especially from the spam folder. During spam campaigns, cybercriminals send out tens of thousands of emails with mischievous hyperlinks and infectious attachments. Never open phony looking hyperlinks. Always scan email attachments with a proper anti-virus app before opening or downloading them.
- Visiting file-sharing platforms, like The Pirate Bay, BitTorrent, and others. A harmlessly looking crack (aka software illegal activation tool), or some game cheat codes, or anything else on those sites, might actually be malware in disguise. And right after it gets entry to a computer system it starts its dirty deeds.
To stay safe on the internet all users, no matter how tech-savvy, should always have their backs watched by some trustworthy anti-malware software.
Guidelines for Sext ransomware removal and system restore
As mentioned in the first paragraph, users should focus on this virus' elimination from the infected system. To remove Sext ransomware virus automatically, use MalwarebytesMalwarebytes or SpyHunterCombo Cleaner antimalware apps. To stay safe in the future, remember to always keep these apps and their virus databases updated.

Once the Sext ransomware removal is finished, users can concentrate on rebuilding their computers. Not with a screwdriver, instead, use the FortectIntego tool to find out with a push of a button what the nasty virus has done to your system settings/files and reverse it.
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