What is Rootkit 2021
সচেতনতা ও শিক্ষামূলক উদ্দেশ্যে লেখা
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যেটি kernel লেভেলের privilege নিয়ে কাজ করে। যদিও, বিশেষ অপারেটিং সিস্টেমে software লেভেলেরও হতে পারে।
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কম্পিউটার restart করলেও Rootkit 2021 কাজ করে।
এখন অনেকে প্রশ্ন করবেন- ‘একজন ব্যক্তি কিভাবে আমার কম্পিউটারে rootkit প্রবেশ করাবে’? দেখুন- Linux কম্পিউটারে /etc/sudoers নামক file কে edit করে privilege বা, ক্ষমতা নিতে হবে; যার জন্য password জনতে হবে। কিন্তু, Windows কম্পিউটারে .bat বা, .exe file কে run as administrator করলে সহজেই system file এর permission পাওয়া যায়। ফলে, খুব অল্প সময়ের মধ্যেই একজন ব্যক্তি আপনার কম্পিউটারে এটা করতে পারবে। আবার, আপনার কম্পিউটারের সরাসরি access পেলে Windows কম্পিউটারের sethc.exe কে rename করে user password পরিবর্তন করে login করা সম্ভব। আর, তারপর regedit এর মাধ্যমে HKEY_LOCAL_MACHINE থেকে CurrentControlSet এর অন্তর্ভূক্ত key এর value পরিবর্তন করে rootkit হিসেবে backdoor তৈরী করে দেওয়া সম্ভব। তবে, সম্পুর্ন পদ্ধতি বলবো না যেহেতু, সেটা ফেসবুক policy -র বিরুদ্ধে যাবে।
যাই হোক, কম্পিউটারে Rootkit 2021 প্রবেশ করার পর ইন্টারনেট ব্যাবহার করেই আপনার কম্পিউটার সেই ব্যক্তির কম্পিউটারের সাথে connect হয়ে, তার command অনুযায়ী কাজ করতে সক্ষম হবে। কিন্তু, আপনার কম্পিউটার বুঝতেই পারবে না যে, এটি একটি ম্যালওয়্যার। কারণ, এই Rootkit 2021 তো এখন অপারেটিং সিস্টেমেরই অংশ হয়ে গিয়েছে
কিভাবে শনাক্ত করবো?
In English –
1. Which works with kernel level privilege. However, special operating systems may also have software levels.
2. The Rootkit 2021 works even if the computer restarts.
Now many will ask- ‘How can a person insert rootkit into my computer’? See – Editing a file called / etc / sudoers on a Linux computer will take privilege or power; For which you need to know the password. However, if you run .bat or .exe file as administrator on Windows computer, you can easily get permission of system file. As a result, a person can do it on your computer in a very short time.
Again, if you have direct access to your computer, it is possible to rename sethc.exe of Windows computer and login by changing user password. And, then regedit can change the value of the key included in the Current ControlSet from HKEY_LOCAL_MACHINE to create backdoor as rootkit. However, I will not say the whole procedure, as it will go against the Facebook policy.
However, after entering the rootkit in the computer, your computer will be able to connect to that person’s computer and work according to his command by using the internet. However, your computer may not realize that this is malware. Because, this rootkit is now part of the operating system.
How to identify?
As I said at the beginning – once the Rootkit 2021 enters the computer, it is almost impossible to guarantee the removal of the rootkit from that computer. That is, after hundreds of attempts, the rootkit is still in doubt. Because, maybe the rootkit is in the firmware of your computer’s hard disk or, in the BIOS! Even then, by booting live from a USB pen drive, one can compare that malware-free operating system to the rootkit-infected operating system – to see if there is a difference. In addition, it is possible to predict a lot by analyzing the traffic that will come and go from the computer to the Internet. However, many would suggest disconnecting the Internet from the rootkit-infected computer. However, there is a possibility of identifying the culprit through internet traffic analysis. But, the subject of a very wise hacker is different. In fact, there are many hackers who could not be found even by the intelligence agencies with a budget of billions of dollars. And, big hackers will try to attack with rootkit. So, beware of Rootkit 2021!
আরো পড়ুন – the best laptop in India at 2021- May
Writer –Md. Abdullah Al Mamun
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