What is computer virus?

  

Hello Friends today I am going to give you a short description about a virus or a computer virus. I would rather say we all consider any kind of malware as a computer virus but there is a difference a computer virus and other malware are very much different. Today I am going to give you a short difference about a virus and other malware. Now first let us understand what is a malware malware means a malicious where or a malicious software malicious means a software which can harm your computer system or your data now wiris is one kind of a malware so as we say the full form of virus is vital information resource under seas that means it captures your vital information resources a virus is different from a form a virus is different from a Trojan horse how a virus has a capability to attach itself to some another program and then travel or we need to attach a virus to some another program or that some program which is not a malware a program or a application which is perfectly fine which is a regular software or a regular file which you're you and we are using now these viruses they get attached to these files or an attacker will purposely attach uh virus to these files and once these files are initialized or they are triggered then virus will also trigger along with them so a wireless needs are you will to trigger it it just cannot trigger itself well. Worms are little different they are different than a virus of worms they can trigger themselves and they can try replicating themselves or the network and they can travel over the network without any external support they don't need any particular file or an application to travel over the network these forms can travel over the network by themselves. A Trojan horse is again very much different from a virus a Trojan horse will look like a useful application it will not harm your PC unless it is triggered by some external resource at frozen horses are self programmed or sometimes just controlled by some external entity so till the time it is not triggered.


 It will work like a useful application and once it is triggered and it will then start working but why does is not like a Trojan horse I would rather can say a Trojan horse can contain a virus inside that means once triggered there could be a virus file in a Trojan horse file which can work and then let's try a PC what a virus can do a virus can delete your files. It can intercept your files it can modify the data it can completely use your system resources and do many much wrong to your machine that's a virus so we need to always understand that virus forms Trojans. These are are different things they are just not the same because whenever something goes wrong to our machine we generally simply say ok. There is a virus but it could be a truncheon and it could be a bomb too and there are many other malicious wares which might be there and if you just think that it is just a virus so that is the only small difference I would like to and now let us know the nature of a virus now Here I am going to tell you different phases that our virus undergoes during its complete life cycle so one of the phases a dormant phase a dormant phase is a phase when a virus it's idle it is nothing it just stays and awaits the command from its send on there is another phase that is a propagation phase now in this phase a virus will try to create its identical copy in the machine so why to create it's an identical copy because one copy of a virus will remain this safe it will not get affected in case it is caught by some another antivirus program.