Everyone might have a confusion on these terms like malware, virus, worms, Trojans, etc. we might wonder each time when we see our antivirus flush these stuffs out of the systems.
Who are they ? what they are going to cause?
To know the answer just scroll down.😉
Malware
Malware is the generic term for the software which carries the stuffs like Virus, Trojans, Ransomware, bots , spyware.etc
Worm
Worms are not harmful as you think but they are known for occupying the hardisk space. They are like spies with secret mission of replicating themselves in a large number and spreading to many computers as possible using networks. Their process of replication will happen without the knowledge of the users of the computer as they are as confidential as possible.
Virus
Unlike worms virus is going to affect files on the system thereby continuing their process of replicating . The only relief among users is that virus need coordination from the host program where it is attached to replicate and infect files. Usually virus can be found attached to music, videos and other executable files . They spread when we download or share content which is having virus in it.
There are many types of viruses , we will see one by one.
Boot Sector Virus
These virus are famous for deleting the master boot record and very difficult to remove. mostly the solution will be formatting the full system. They usually spread through removable media.
Direct Action Virus
It is easy to remove virus, and will not hide from the anti virus. They are not that much harmful.
Resident virus
Unlike direct action virus, they are going to install themselves automatically and replicates by themselves. they work when original source is eradicated . they are of two types (i.e) fast infector and slow infector. fast infector affects the files quickly and easier to be recognized. slow infector cannot be recognized easily and will not affect quickly. They have capabilities to attach to antivirus program and infects every file and program of the system.
Multipartite Virus
They are virus which uses all spreading methods possible. They can attack both boot sector and files.
once deleted from the system , they will regenerate from the boot sector after power on.
Polymorphic Virus
They are the challenge for any antivirus. Antivirus need to create routine of detection to detect a polymorphic virus. they change their binary pattern for each replication , so antivirus finds it as different virus therefore will not be found in blacklisted virus program.
Overwrite Virus
These type of virus has capabilities to delete any files or software which it has infected. to remove the virus the only way is to delete that file or software. They cannot be found nowadays, but prevails.
Space-filler Virus
Ransomware
It is a type of malware which can attack a system and encrypts the files and make them inaccessible by the owner or user of the system. They further display a warning message that , if you need your access you should make a payment.
Who are they ? what they are going to cause?
To know the answer just scroll down.😉
Malware
Malware is the generic term for the software which carries the stuffs like Virus, Trojans, Ransomware, bots , spyware.etc
Worm
Worms are not harmful as you think but they are known for occupying the hardisk space. They are like spies with secret mission of replicating themselves in a large number and spreading to many computers as possible using networks. Their process of replication will happen without the knowledge of the users of the computer as they are as confidential as possible.
Virus
Unlike worms virus is going to affect files on the system thereby continuing their process of replicating . The only relief among users is that virus need coordination from the host program where it is attached to replicate and infect files. Usually virus can be found attached to music, videos and other executable files . They spread when we download or share content which is having virus in it.
There are many types of viruses , we will see one by one.
Boot Sector Virus
These virus are famous for deleting the master boot record and very difficult to remove. mostly the solution will be formatting the full system. They usually spread through removable media.
Direct Action Virus
It is easy to remove virus, and will not hide from the anti virus. They are not that much harmful.
Resident virus
Unlike direct action virus, they are going to install themselves automatically and replicates by themselves. they work when original source is eradicated . they are of two types (i.e) fast infector and slow infector. fast infector affects the files quickly and easier to be recognized. slow infector cannot be recognized easily and will not affect quickly. They have capabilities to attach to antivirus program and infects every file and program of the system.
Multipartite Virus
They are virus which uses all spreading methods possible. They can attack both boot sector and files.
once deleted from the system , they will regenerate from the boot sector after power on.
Polymorphic Virus
They are the challenge for any antivirus. Antivirus need to create routine of detection to detect a polymorphic virus. they change their binary pattern for each replication , so antivirus finds it as different virus therefore will not be found in blacklisted virus program.
Overwrite Virus
These type of virus has capabilities to delete any files or software which it has infected. to remove the virus the only way is to delete that file or software. They cannot be found nowadays, but prevails.
Space-filler Virus
They are also called as cavity virus, it is a rare type which attempts to install itself into a file by filling in the empty sections of a file. But problem is they file size will not differ making it difficult for a anti virus program to find it.
Trojan
Trojan's main aim is to provide backdoor entry for a malicious software to get installed without our knowledge to steal data and valuables.
Adware
They are responsible for unwanted ads in computer's desktop and inside any software. They are attached to open source software to display ads to create and income.
Spam
Unwanted emails from unknown senders are spams or junks. They may contain some malware. They are they cause of commercial advertisements through mails.
Bot
They may be called as intelligent worms who carry an automated process for attacking and infecting the entire host making them join a central server which is the command center for all bots . All such infected hosts connected to a Central command center form a network called as botnet. Bot are created with a lot hard work by the malignant creators. They provide way for other malicious applications such as key-loggers, network traffic analyzer and even can cause Denial of Service attack.
Ransomware
It is a type of malware which can attack a system and encrypts the files and make them inaccessible by the owner or user of the system. They further display a warning message that , if you need your access you should make a payment.
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