Kaspersky talks about different types of ransomware and free ransomware protection and decryption tools

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New Delhi: Given the recent intense cyber attacks worldwide, it is good practice to understand how these cyber attacks work and how they can be prevented. Kaspersky talks about different types of ransomware and how you can protect yourself against ransomware and reduce the damage that has already been done.

Ransomware is malicious software that uses various methods to access devices. Then some or all of the files it contains are encrypted and a payment is requested to restore access to your valuable data.

The software can infect your computer if, for example, you connect an unknown USB stick to your computer, visit a malicious website, or download and run a malicious file from the Internet or an email attachment. Even if you are on the same network as an infected computer and do nothing wrong, this may be enough to infect you with ransomware. One guy even looks like a Windows update.

The ransom request states the payment in Bitcoin (or another cryptocurrency), which makes it very difficult or even impossible to track the payment. The perpetrators say that if you pay the ransom, they will return your files. In reality, however, your ransom payment is no guarantee that your files will be returned safely.

According to Kaspersky's research, 20 percent of ransomware victims who paid didn't get their files back. Average demand is $ 300. Careful consideration instead of hasty payment is recommended. Cybercriminals prefer bitcoins. This cryptocurrency cannot be faked. The history of the transactions is available to everyone, but the owner of the wallet cannot be easily tracked.

The most suspicious files are executables (like .exe or .scr), with Visual Basic scripts or JavaScript (.vbs and .js) not far behind. Another dangerous file category is Microsoft Office files (.doc, .docx, .xls, .xlsx, .ppt, etc.). They can contain vulnerable macros. Macs can and have been infected with ransomware. There are currently not as many ransomware programs for macOS as for Windows, but we are sure that the number will increase in the coming years. CryptMix Ransomware tells victims that their "donations" go to a children's charity.

Petya and Misha are both ransomware and are delivered to victims in one package. Petja and Mischa are distributed using phishing letters that masquerade as applications.

WannaCry Ransomware takes your data hostage and promises to return it if you pay a ransom. WannaCry targets computers that use Microsoft Windows as their operating system. It encrypts data and requests payment of a ransom in the cryptocurrency Bitcoin for its return. A new version of Shade Ransomware adds ".no_more_ransom" to the end of each encrypted file. Ransomware recovery is a mixed thing, and avoiding infection is the best way in every way.

Do not download suspicious files, click suspicious links, or open unexpected email attachments or from unknown senders. Back up your files frequently. This way, even if ransomware locks or blocks your files, you can restore them without paying a ransom.

The free Kaspersky Security Cloud – Free not only protects personal devices from ransomware, but also from a variety of other threats. The free Kaspersky Anti-Ransomware Tool for Business can be installed with other security solutions and does not conflict with them.