One of the most dangerous computer viruses in history is ransomware
What is ransomware?
The English word 'ransom' means ransom. Ransomware is the malicious program or virus/malware that locks the files of the infected device and demands money to open that lock. You may have heard the name "WannaCrypt" before? As you probably know, that ransomware encrypted or locked millions of infected PC files, and demanded a $ 5 ransom through secure payment online to open every PC file. It is not possible to identify who or who is receiving the money sent through Bitcoin.If you do not pay, the threat of deleting all files within a maximum of 5 days is threatened by the OneCrypt virus or ransomware.
The ransomware is basically 3 types-
1. Scareware
As horrible as it may sound, the virus is not exactly as scary. It is made up of some malicious system software and malicious virus. While browsing the internet, a pop-up message may appear stating that a virus has been detected and some money has to be paid to get rid of the virus. Even without paying money, Squareware can't do any harm. Many times these malware also ask permission to automatically install some malicious software on the personal computer. If you have an antivirus updated on your computer, there is no need to worry about scarware.2. Screen locker
This type of malware is something to worry about. Because, as the name suggests, once something like this enters the computer system, we will literally be blind in front of the computer. If the computer is turned on, a warning message will appear on the screen, the logo of international intelligence agencies (such as the US FBI) on the screen and it will be said that the computer will have to pay some money for illegal activities. But the truth is, no intelligence agency in the world suddenly demands money by seizing information on a personal computer for illegal activities.3. Encrypting ransomware
Now let's come to the main accused. This kind of malware is actually very dangerous. Such powerful malware attacks can sometimes be disrupted even by powerful malware attacks. The specialty of this malware is that once this malware enters your computer, it first encrypts every file on the computer's drive. Simply put, it locks the files so that none other than the cyber criminals can open them. And finally claiming money. Diameter! Once a file is encrypted, no third-party software or antivirus will be able to restore that file. Even after paying, there is no guarantee that cyber criminals will back you all of your files in a cohesive manner.How do they work?
Ransomware is a type of malware, which prevents a user from accessing a PC after infecting a computer device, and restricts the user's access and demands a ransom from the user to remove the restriction.There is some ransomware that encrypts all the files on the system's hard drive with one big key. The encryption key is so large that it is technically impossible to break it without ransom. Some also lock the user's system through a simple program and tempt the user to ransom through the message on the display.
It basically works in three steps called cryptoviral extension, viz
Cyber Criminal sets the password and spreads the malware online.
The user locates the PC and locks the file and shows the message set by the hacker
Once the hacker receives the claimed money, he can then decrypt the file with Viktim.
What is the harm caused by the virus?
These hacked information include user's various pictures, files, social media accounts, bank accounts and so on. Not only this end, then a certain amount of money is asked of the person to get this information back. If the money is not given, then the information will be destroyed. More than 5 countries around the world were attacked. The ransomware stunned thousands of computer systems, including many large organizations from different sectors. Then the hackers told the hackers that they would return the control for 5 dollars in a message to the affected computer.
On the other hand, all the information that can be returned with money is not guaranteed or there is no guarantee that it will not be hacked.
Microsoft provided security updates in March to fix the security flaw that OneCrypt uses for Windows. PC users who have suffered PC attacks for some reason did not install the MS17-010 security patch update for March, or they were using Windows versions that Microsoft no longer supports. But now Microsoft has also released this patch for unsupported Windows (XP, Vista).
If you are a Windows 7 PC user, you are free from the possibility of being infected with the virus because of the malware on Windows 8 OS. Prohibition system is in place.
Here are the steps you can take to protect yourself
Currently there is no decryption tool or any other solution available for OneCry, so users can follow the following protection measures to protect themselves.
To be safe:
It is important to keep a backup of the files you need, both online and offline, since there is no known way to be safe from ransomware. Also, effective antivirus should be used to protect the privacy of yourself and your information.
Ransomware protection first needs an updated OS, so make sure you have an auto-update on your computer.
Even if there is a link or attachment file in a message or mail from a stranger, you should not click on the link or download it.
Keep backup of the data and files you need and update at least once a week or month.
Use good quality licensed antivirus, not free antivirus, for the security of computers and mobile phones.
We will discuss in the next phase:
With the extension of ransomware. Details on how they spread.
Method of decrypting encrypted files.
Stay tuned for more information on what to do if ransomware is attacked.
Thank You
0 Comments