Blog

Ransomware is virus-type malware that takes data or files hostage by encrypting them. Once the data is blocked, a ransom is demanded in exchange for a key to decrypt it. In this article, we will explain Everything you need to know about Ransomware.

It can also block all access to a machine until a jailbreak tool is sent to the victim, in exchange for a sum of money.

So let’s start it one by one.

• Scareware:- It takes the form of rogue security software, alerts the device to a detected threat, and demands a certain amount of money to get rid of it.

• Screen lockers:- Once software enters your device, you cannot access it. A window displays that illegal activity has been detected and asks you to pay a fine.

• Encrypting ransomware (Cryptolocker):- Personal data is stolen and encrypted.
  Without an encryption key, you cannot access it.

They start to demand in exchange for the key. No security system or system restore can help you find your files in the event of such a cyberattack.

It is not even guaranteed that you will get them back even after paying the ransom.
How does ransomware operate?

The ransomware can take the form of a computer worm to infiltrate a user’s device through a file downloaded or received by email or spread similarly to a Trojan horse.

Once in the device, it activates an executable that will encrypt the user’s files on their hard drive.
Increasingly sophisticated, some ransomware uses hybrid cryptographic algorithms: the attacker is the sole holder of the key that allows documents to be decrypted.

Additionally, some ransomware does not use encryption. However, they can change the Master Boot Record and prevent the operating system from restarting.

Either way, the main purpose of ransomware is money extortion (making the user buy a program to decrypt their files or a code that removes locks).

Payments are most often made by bank transfer, premium SMS, bitcoins, or Paypal. Agencies like Deliveready use the secure network to operate and create their websites and apps.

What to do if ransomware attack

• Unplug the machine from the internet: The spread of the virus will be interrupted and the hacker’s control of the device is beyond the control of the hacker.

• Don’t Pay the Ransom: Giving in to blackmail encourages hackers to continue and does not guarantee that you will find your data.

• Identify the source of the infection: This will allow you to take the necessary steps to prevent it from reoccurring and will help you disinfect your device.

• Disinfect and decrypt your device (if possible): Disinfect your system with antivirus or antimalware. Consult specialized decryption sites to regain access to your data.

If that is not possible, reconfigure your computer, reformat your hard drives, and restore your data – in case your copy of your files is not infected.

How can you protect yourself from ransomware

• Back up your data: You’ll be one step ahead of hackers and be able to sacrifice your data since it will be safe elsewhere.

• Update your system and software: Disable macros that allow you to automate certain tasks.

Make sure that the update of your software is always carried out so as not to miss any flaws.

• Be vigilant: always check the sender of the messages you receive and do not open emails whose origin or form seems doubtful to you.

• Be sharp-minded: Distinguish between trapped and legitimate messages.

• Use a cybersecurity solution: choose a program to protect yourself in real-time against all kinds of threats (virus, phishing attempt, trojan, etc.).

This is everything you need to know about Ransomware.

everything you need to know about Ransomware