Make a fun virus

Create an account. Edit this Article. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy. Cookie Settings. Learn why people trust wikiHow. Download Article Explore this Article Steps. Tips and Warnings. Related Articles. Author Info Last Updated: January 2, Determine what operating system you are going to attack.

The most common target is Microsoft Windows, especially older versions. Many old Windows users do not update their operating system, leaving them vulnerable to security holes that may be fixed in newer versions.

Mac OS X and Linux are both fairly virus-proof due to the way permissions work and the general architecture of the operating system. Decide how you want it to spread. A virus is only a virus if it can spread to other users. You will need to figure out the delivery method before beginning, as it is one of the fundamentals of the virus's code.

Common delivery mechanisms include: Executable file. COM etc. Macro Microsoft Office - Macros are programs that are embedded into a document or email. They target Word, Outlook, and other macro-enabled products. The most common method of delivery is via email with an infected document attached. Web script - These are pieces of malicious code that are injected into sites without the webmasters' knowledge. Determine the weak spot that you want to target. Successful viruses exploit weak spots in a program's or system's security to spread and carry out their actions.

This requires a lot of research and know how, but there are communities out there that can help you find what you need. Decide what you want your virus to do. Once your virus has infected a system, what do you want it to do? Effects can range from nothing, to displaying a message, to deleting files, and much worse.

Be aware that creating and spreading a malicious virus is a serious crime in the most countries. Choose a language. In order to create a virus, you will need to have at least a basic understanding of at least one computer language or scripting tool.

More complex viruses often involve several languages. For really effective viruses, you will need to be familiar with assembly languages.

If you want to make macro viruses, learn the macro language for your target programs such as Microsoft Office. Visual Basic can be used to create malicious programs for Windows users. Start writing your virus. This will be a long process, especially if this is your first time coding something.

Experiment as much as possible, and research ways to replicate your code depending on the language you are using. There are tutorials on forums and community blogs for a variety of languages.

Research polymorphic code. They outlined five of the most intriguing traits of viruses:. Viruses operate on the border of life and non-life. They have only a handful of genes often as few as just three or four , unlike bacteria, which have about a thousand genes, and higher forms of life — like humans — with tens of thousands of genes.

Yang said. It's inert. You can even freeze viruses without damaging them. Viruses never took the evolutionary jump to become independent, living beings. But they found a highly efficient way to survive and multip ly — by being parasites that hijack living hosts. When one copy of the virus genome gets into a host cell, it multiplies incredibly quickly.

Within hours, thousands of copies can be made from a single virus. Since viruses cycle through multiple generations so quickly, they end up making frequent mistakes when copying their genetic information. The recipe, in the simplest cases: Take the purified protein and the purified nucleic genome.

Harmless pranks are very common and you can simply make fun of your friends by dropping cool fake viruses into the folder "C:Documents and SettingsAll UsersStart MenuStartup" and enjoy the fun.

Though the victims might consider these fake viruses malicious, they are actually not destructive to their computer. So, there is no need to worry about the rest of it as you can just make someone else panic and go crazy. You need to copy and paste the following content into a Notepad and save with a file name of your choice followed by the.

Sleep echo Wscript. Have a nice day. Then, your victim's PC will messages as shown above and it will initiate a shutdown sequence that can simply be stopped by entering "shutdown""a" in the Run box.

Though it looks bad, it is not harmful at all. Basically, this is a harmless test file that will set off a good virus scanner. It will make sure that the anti-virus on your PC is vigilant. Also, it is great to send in an email. Also Read: Here 8 powerful extensions that will get you hooked to Pinterest! This is a cool fake virus program that will simulate the disk format dialog of Windows. It cannot be halted or closed until it has run completely.

Once it is done, a message will be shown informing the user that the whole scene was just a joke. Also Read: What are Bluetooth 4. Here are 5 Ways These Differ. Fake Delete mimics the file-delete dialogs of Windows. It goes to the extent of using the actual file list and not the generic filenames.

After it is done, it displays the message "it-was-all-a-joke" on the screen.