Locky ransomware has been making its presence felt since February 2016 in the digital world. The Locky ransomware emerged with advanced features.Domain generation algorithm, complex spam email campaigns, server-side encryption and generic PE packers are a few destructive attributes of it. With the frequent polishing, the creator make the detection of Locky Ransomware, difficult than ever before.
We provide you a brief description about the destructive infection of the cyber world.
|Targeted Operating System||Windows|
|Targeted Browsers||Internet Explorer, Google Chrome, Mozilla Firefox|
This disastrous ransomware made its presence felt on 18th February, 2016 by infiltrating the system of Hollywood Prebyterian Medical Center in Los Angeles. It encrypted all the data on the hospital’s computer systems. Eventually, the hospital paid a sum of $17,000 Bitcointo get the decryption key.Locky, gains access to your system bythe malicious Microsoft Word Document attached with Emails.
This strain of ransomware gained popularity in no time. By November, the Locky ransomware was one of the most common threats in cyber world.The harmful ransomware, after encrypting the files, generates a private key on the server.This process makes the manual decryption impossible. Hence, the victim is bound to pay the ransom in order to restore the lost files.
Generally, emails with malicious attachments are the gateway for this ransomware. It is next to impossible to detect Locky ransomware, as its source looks almost legitimate. The fake email may have subject line – ‘Upcoming payment – 1 month notice’ or ‘ATTN: Invoice J – 12345678’followed by an invoice in it, which is actually a destructive word document.
Once infected, it is not possible to recover Locky encrypted files. Ransom is the only way out! The new extensions on the encrypted files are named after the gods of Norse and Egyptian mythology. They might be as –.osiris, .odin, .thor, .aesir or .locky.
Once your system gets infected, it uses RSA-2048 and AES-1024 encryption algorithm. The changed extensions make the files inaccessible for the users. Below are the points which will help you to understand the threat behavior of Locky ransomware at a glance:
Once the Locky virus encrypts your files, it will change their extensions. The current extension used for encryption by this ransomware is ‘.osiris’. The changed extensions make your files’ data inaccessible.The only way to get back your files is by paying the asked ransom amount.
There are several ransom payment methods used by the hackers. Litecoin, Zcash, Dash, Bitcoin are a few mentions. Among all the available payment methods, Bitcoin is the most preferred one.
Cyber criminals, ask for large amount of money as ransom in order to provide the decryption key. In case of Locky ransomware, the ransom may vary from 0.5 bitcoins to 1 bitcoin. It is to be noted that, there is no guarantee, that you will be able to restore your file even after paying the asked amount.
A pop – up ransom note will be displayed on your system’s screen, once, this ransomware has infected the data. The note will appear as shown in the image below:
There are several ways that Locky will propagate in your system. Following are some of them:
First and foremost is via malicious attachments. Spammed emails containing harmful Microsoft Word Documents are the primary gateway for this ransomware. Such emails will containacatchy subject line.
Other propagation methods may include:
Continue to follow steps 4 & 5 of Method 2 to restore the System Files and settings.
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