Virus

Hackers are always seeking zero-day exploits that can successfully bypass Windows 10's security features. There has been extensive research into creating undetectable malware and entire GitHub projects dedicated to automating the creation of undetectable payloads such as WinPa ...more

In my last tutorial, I talked about creating a virus inside of a Word Document in the scenario of a mass-mailer attack. In this post, however, I'm going to be covering creating a fake image or screenshot with a meterpreter backdoor hidden inside to be used in a similar scenari ...more

When it comes to antivirus software, you don't want some fly-by-night developer having access to the sensitive data that these apps can scan. Luckily, most of the longest-tenured antivirus companies from the realm of desktop computers offer complete security suites for Android ...more

When performing something such as a mass mailer attack on a company, sending executables usually isn't the best option. That's why, in this tutorial, I'll be teaching you how to code a VBA script macro into a Word document in order to compromise a system. Combined with a littl ...more

Welcome back, my budding hackers! I've written several listener guides on creating a malicious PDF or malicious Word document that would carry in it a payload with the Meterpreter, or reverse shell enabling you to own the system. One of the hurdles to using these techniques i ...more

So you want to create a meterpreter virus, but you keep getting caught by AV. How do you create one that will go undetected? In this tutorial, I'll teach you how to code your own simple virus that will download a powershell payload from an apache webserver and execute it - byp ...more

All fields of study have their own language. For people interested in learning about microbes, the language can sometimes be downright difficult — but it doesn't need to be. From antibiotics to xerophiles, we have you covered in an easy-to-understand glossary. Terms are liste ...more

Hello fellows nullbyters, first of i will start saying that im addicted to this community, i feel the challenge growing up so fast, all the newbies, amateurs,advanced and professionals hackers around trying their best to help the community, badly but we got some script-kids to ...more

Many windows users, if not all, run into a virus infection once in a while. This is unavoidable when using Microsoft's operating system. Without digressing too much, the fact that Windows is such a popular OS with no controlled software sources makes it easy for viruses and ma ...more

It's time for another mobile prank. The classic pranks and practical jokes are always great, but let's hit your friends where it really hurts—their precious (and expensive) smartphones. And what better way to scare the shit out of them than making them believe their phone's be ...more

The herpes simplex virus (HSV) can cause devastating complications for infected newborns whose mothers have genital herpes. Understanding risk and research can help you, and your baby, when the time comes. In the US, about one out of six people aged 14 to 49 have genital herp ...more

AppleScript is quite an easy scripting language to use. In this guide, I will be showing you several commands. Near the end, I will show how these can be used to create a fake virus that actually does no harm. Of course, this is only one way to use these commands—use your ima ...more

One of the things that sets a seasoned hacker apart from the script kiddies is the ability to effectively sneak past antivirus defenses when executing an attack. One way to do this is to use custom shellcode in an exploit. Not everyone is an expert at writing shellcode, but lu ...more

Computer viruses are terrifying. They are undetectable, dangerous, and operate constantly right under your nose. For the average computer user, there are only a few repair options. You could buy expensive antivirus software that causes more problems than it fixes, you can wipe ...more

For many of you, this is common knowledge. But I still regularly see comments posted here and elsewhere asking, "This <AV bypass> doesn't work, because when I upload my payload to VirusTotal...." It's a totally understandable beginner mistake. After all, it seems like a cleve ...more

Who hasn't gone mad trying to fix his/her computer, trying to delete all of the harmful software? It may not be funny with a real virus, but a fake one is. Or course, you can make a simple virus just with Notepad. There's no need to download applications to fool others; in les ...more

Fugu - a simple virus in bash. I once told a friend of mine I'd written a virus in bash and he scoffed - "You can't write a virus in bash!" - he sniggered, like an ignorant idiot. Take my script, read and run it I told him. He declined. I still have that script so thought I ...more

The misconception that macOS is more secure than the Windows operating system is far from the truth. With just one small command, a hacker can completely take over a MacBook and control it remotely. The sheer volume of Windows computers currently in operation around the world ...more

System Tool. It sounds like something your Windows computer might need, but it's the exact opposite. System Tool is a computer virus masquerading as a free antivirus program. But don't be fooled, System Tool Antivirus might as well be called System Tool Virus or even System T ...more

Welcome back, my tenderfoot hackers! As hackers, we often are required to get past antivirus (AV) software or other security measures. To do so effectively, we need to have some understanding of how AV software works. In this tutorial, we will take a cursory view of how AV so ...more

Hello Hackers/Viewers, It is a new day, and you might be thinking, It is so boring, why not try to be cool with computers in front of my friends? That is why, I have made this tutorial to make fake viruses using notepad to look cool! Step 1: Requirements for the Prank First ...more

You've protected your Ubuntu system from physical attacks, annoyed network hackers, and sandboxed potentially malicious applications. Great! Now, the next logical steps to locking down your OS include thoroughly auditing Ubuntu for weak points, using antivirus software that re ...more

The executable file association virus deletes the "Regkey" that associates ".exe" files with the proper Windows execution. The virus can be contracted while browsing the web, from an infected file, or even from pictures and documents. Once the damage is done, Windows will show ...more

Determining the antivirus and firewall software installed on a Windows computer is crucial to an attacker preparing to create a targeted stager or payload. With covert deep packet inspection, that information is easily identified. This attack assumes the Wi-Fi password to the ...more

The Play Store hasn't been the most secure place for apps lately. A quick Google search for "Play Store malware" will give you a taste of some of the malicious apps that snuck their way onto Android's official app store. Google is aware of the problem and they're tying to fix ...more

Thanks to the COVID-19 virus, the whole country is staying home. That means no dining out, no going to bars, no live music, and, sadly, no movie theaters. While you might think that means you'll have to wait to see movies like "The Invisible Man," "Emma," and "The Hunt," think ...more

When just floating peacefully in the water with their brood mates, the Culex mosquito larvae in the image above does not look very frightening. But in their adult form, they are the prime vector for spreading West Nile virus — a sometimes mild, sometimes fatal disease. Part o ...more

Welcome back, my novice hackers! One of the most common questions that Null Byte readers ask is: "How can I evade detection by antivirus software on the target?" I have already talked about how AV software works, but to obtain a deeper understanding, what better way is there ...more

Hello Friends … My name is Suresh Senarathna and this is my first “How-To” post, Now I am going to show you how to stop all antivirus services after got meterpreter session in your victim, (I'm using MS windows Xp as my victim OS and AVG Antivirus guard as an example) In me ...more

Most of us have already had an encounter with the Epstein-Barr virus, or EBV, for short. As part of the herpes family, it's one of the most common disease-causing viruses in humans. We get the disease with (or without) some nasty symptoms, then we recover. However, EBV stays i ...more

While a lot of internet threats are rather over-hyped, there are some serious things to be cautious of when going online. Probably the biggest risk to the average internet user is malicious software. Commonly knows as "malware," this term refers to any program that exists sole ...more

Hello, Hackers/Viewers! My name is nullf0x, and I have 4 years of experience as a hacker. You might see everyday that one of your friends or acquaintances get a new virus in their computer. You might think, How cool would it be if I made a virus? or How cool would I be if i c ...more

In the US, ticks can spread several pathogens in one bite. A new test offers physicians the ability to identify what infections ticks are carrying and can detect if one of the pathogens could be the spreading Powassan virus. Ixodes scapularis, better known as the black-legged ...more

This tutorial follows the same idea as my original tutorial for windows, but I've redone it to work with Mac OS X. Here's how to get a meterpreter session from your victim opening a malicious word document: Step 1: Creating the Payload For this tutorial, I'll be using a pyth ...more

People who have heart disease get shingles more often than others, and the reason has eluded scientists since they first discovered the link. A new study has found a connection, and it lies in a defective white cell with a sweet tooth. Shingles is a reactivation of the same v ...more

Andre was enjoying the carefree life of a 12-year-old with his friends, riding his bike and playing sports, like all kids that age. Schoolwork wasn't hard for him, and his grades showed that. Then, the headaches began. He lost vision in one eye, symptoms that drove his famil ...more

A deadly type of brain tumor and Zika-related brain damage in developing fetuses are devastating brain conditions that, at first glance, may seem unrelated. However, thanks to new research, their paths seem to cross in a way that could benefit patients. A new study has shown t ...more

As summer mosquito season approaches, researchers are warning people with previous exposure to West Nile virus to take extra precautions against Zika. A new study found that animals with antibodies to West Nile in their blood have more dangerous infections with Zika than they ...more