Ransomware attacks are growing at an annual rate of 350%!
First appeared in August 2018, the Ryuk Ransomware aimed to attack businesses and large enterprises across the globe. Researchers at Crowdstrike estimate that Ryuk Ransomware, since its inception, has extorted more than 705 Bitcoins worth over $3.7 million as of Jan 2019. In the first two months, the Ryuk Ransomware extorted over $640,000 in ransom.
Ryuk derives its name from a fictional character in a popular Japanese anime series called ‘Death Note’; perfect sobriquet for a ransomware that’s used for tailored attacks and encryption of critical assets on a targeted network. It’s harder to track, as the ransomware isn’t widely distributed.
Ryuk shares its DNA with Hermes—another infamous ransomware that attacked the Far Eastern International bank (FEIB) in Taiwan and stole a hefty $60 million that was later retrieved.
The primary source of Ryuk ransomware spread is via emails and attachments, downloads from untrusted and insecure web sources, and phishing. The attack can also be carried out through an insecure remote desktop connection.
Once Ryuk enters a network, it starts spreading into the systems connected to the network and encrypts the files. Following are the ways by which Ryuk Ransomware encrypts the data on a targeted network, server, or PC.
While the ransom note from Ryuk Ransomware states that there is no way to recover the data, you may still try recovering the data by using Stellar Data Recovery Professional. Here’s how,
After saving the files, try to access them. If the file opens, you have successfully recovered the data.
Watch the video below:
Further, you can follow these essential tips to prevent future Ransomware attacks and data loss:
Data recovery from a ransomware-infected PC or storage media isn’t guaranteed. Every ransomware works differently. In a nutshell, they either remove the existing file and create an encrypted copy or encrypt the original data itself by overwriting it. Stellar Data Recovery Professional may restore the lost files – in case the ransomware removed the original file and created a new encrypted copy – with the help of Deep Scan function. Deep scanning performs a thorough file signature-based scan on each sector on the drive and find the traces of recoverable data. Deep Scan may help recover data from a ransomware infected storage media or Windows PC. To prevent further data loss due to ransomware attacks, follow the tips shared in this post.
Satyeshu is a Windows blogger and data recovery expert. He is having good technical knowledge and experience in Windows data recovery. He writes about latest technical tips, Windows issues and tutorials.