Driedsister Ransomware

What is Driedsister Ransomware?

Driedsister Ransomware is a new danger that mostly threatens Japanese computer users. This ransomware can crawl onto your computer and encrypt all your documents and photos in no time. Just because these attackers mainly target Japanese users, it does not meant that this threat cannot infect elsewhere as well. Its original name is "下 物 妹" (“Irisimo imoto”). This dangerous malware infection has one strange feature: It does not demand a ransom fee. It does display a sort of ransom note, but there is no mention of a ransom or that you could get a decryption tool or the key in any way. This also means that right now it is not possible to recover your files that have been encrypted by this ransomware program. Our malware specialists at anti-spyware-101.com say that it is still essential that you remove Driedsister Ransomware if you want to be able to use your computer. Please read on to learn more about this severe threat.

Where does Driedsister Ransomware come from?

It is quite likely that you infect your computer with this dangerous ransomware via spam e-mails. The malicious executable can be disguised as an image or document file, and attached to a spam e-mail. You are led to believe that this mail and its attachment are very important for you to see. Its sender could look totally authentic and sometime even authoritative if it allegedly comes from the local police, for instance. If you were to check out the sender name and e-mail address by running a web search, in most cases you may even find that these are existing people at real companies or government agencies. However, in a lot of cases, cyber crooks do not bother and they just make up fake names and e-mail addresses. This is why you should always send an e-mail to the sender when in doubt.

In this case, however, the victim feels that this spam is indeed important and opens it. The truth is, though, that this spam does not contain any tangible information about the supposed matter. Instead, it tells you to download a file by clicking on a link or by opening the attachment. It is vital to understand that you cannot delete Driedsister Ransomware after this and save your files from encryption at the same time. In fact, once you click to view this file, you doom your precious files to encryption. Since cyber crooks can also infect you via RDP (Remote Desktop Protocol) attacks and outdated software bugs, we suggest that you use strong passwords and keep all your programs, including your browsers and drivers, always updated.

How does Driedsister Ransomware work?

This ransomware seems to attack Japanese users as suggested by the ransom note window, which is not even a real ransom note. This malware infection uses the AES algorithm to encrypt your important personal files and adds the ".干物妹!" extension when a file is encrypted. It does not create a copy of itself and no Run registry entries either. This threat operates from the file you download from the spam. Once done with the encryption process, a pop-up comes up on your screen with an Anime character and a Japanese note. We cannot really call it a ransom note because it does not offer you a decryptor in exchange for your money. This also suggests that these cyber criminals does not even have a decryptor yet. In other words, it is not possible to recover your files after this attack just yet. We do not encourage anyone to pay any ransom anyway because there is never any guarantee that you will get the decryption key or software, either. We recommend that you remove Driedsister Ransomware as soon as possible.

How can I delete Driedsister Ransomware?

Since this dangerous ransomware program does not seem to demand any ransomware yet, its authors have not developed the decryptor, either. Therefore, it does not seem to be possible to decrypt the files that this vicious program has encrypted. Hopefully, malware hunters will succeed in the near future and a free file recovery tool may surface on the web soon. This attack is also a good lesson about prevention. We recommend that you keep a backup of your important files on a removable drive or in cloud. Please use our instruction below if you want to put an end to this dangerous threat yourself. However, if you are looking for a more effective way to protect your PC from possible future cyber attacks as well, we advise you to install a reputable malware removal application, such as SpyHunter.

Remove Driedsister Ransomware from Windows

  1. Press Win+E.
  2. Locate the downloaded malicious file and delete it.
  3. Empty your Recycle Bin.
  4. Restart your computer. 100% FREE spyware scan and
    tested removal of Driedsister Ransomware*
Driedsister Ransomware
Driedsister Ransomware
Driedsister Ransomware

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