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How To: Use SQL Injection to Run OS Commands & Get a Shell

One of the ultimate goals in hacking is the ability to obtain shells in order to run system commands and own a target or network. SQL injection is typically only associated with databases and their data, but it can actually be used as a vector to gain a command shell. As a lesson, we'll be exploiting a simple SQL injection flaw to execute commands and ultimately get a reverse shell on the server.

News: Monthly Injection Has Potential to Replace Daily Handfuls of HIV Drugs

People infected with HIV take many different types of pills every day to decrease the amount of virus in their body, live a longer and healthier life, and to help prevent them from infecting others. That could all be in the past as new clinical trials testing the safety and effectiveness of a new type of treatment — injections given every four or eight weeks — look to be equally effective at keeping the virus at bay.

Hack Like a Pro: How to Change the Signature of Metasploit Payloads to Evade Antivirus Detection

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 is the antivirus (AV) software on the target system. For instance, if you try to email a malicious PDF or Word doc, it's likely that the victim system will alert the victim that it contains a virus or other malware.

How To: Build a Bomb-Defusing Robot Tank for the Revolution

War leaves a lot of stuff behind. Torn families, delegitimized institutions, mass graves, and unexploded ordinances litter the post occupation landscape. Whether or not you have driven the imperialist out, or are still in the phase of armed resistance, you will need the ability to safely diffuse bombs. My bomb defusing Silvia-bot can do it all. She can catch grasshoppers, cut wires, collect samples, tase enemies and even play chess! Materials

Robot Basics: Using an H Bridge to Move Your Bot Backwards

I love robots. They have the potential to evolve into Asimovian destroyers of the human species, but have only just mastered the art of cleaning my rug. They have an ever increasing cool factor and a growing number of cheap and simple components that let the hobby roboticist reach for the burning miasmas of plasma. But to get to the stars, we need to start with the basics.

How To: Braid a fishtail braid

In this Beauty & Style video tutorial you will learn how to braid a fishtail braid. Dampen your hair and apply some styling putty to help the hair stick together. To start, cut a 'V' from the crown of your head, split the strand in to two and cross them over once. The strand on the right side is at the bottom. Put this strand on top of the right index finger and then place the other strand below the finger. Now grab another strand of hair from your hairline with the left hand and put it on to...

How To: Origami a great bell flower

This video tutorial is in the Arts & Crafts category which will show you how to fold an Origami bell flower. Take a square piece of paper and fold it to make a rectangle. Crease, unfold, fold it in the other direction and unfold. Now fold it in half to make a triangle, unfold and fold in the other direction. Unfold it and fold it again in half into a triangle, but on the other side of the paper. Now pitch in the two sides and squash down the other sides as shown in the video to make a smaller...

How To: Use advanced roll techniques in parkour or free runnin

Levi Meeuwenberg demonstrates how to do a parkour roll. First, practice the takeoff leap. Use forward momentum to jump out. Enter the landing leaning forward with the weight in front of your feat so you fall into the roll. Be physically and mentally tense and prepared when coming into the landing. Land with your feet parallel and square in the direction where you're heading. Keep your feet a bit less than shoulder width apart. Use a bend at the hips to complete the shoulder roll. Push against...

How To: Macrame your hemp jewelry

Rayann shows us techniques to make macrame designs using hemp for the creation of fun, interesting jewelry designs. She shows us four techniques. First she introduces us to the half-knot using four strands of hemp. The right-hand strand is brought across the others in the shape of a backwards four, while the left-hand strand is brought behind the others and through the loop created. A series of half knots will result in a spiral design along the length of the jewelry.

How To: Work with the coordinate plane in algebra

This video tells us the method to work with the coordinate plane in algebra. The first step tells us the method to determine the coordinates of a given point on the coordinate plane. For this, go parallel to the x axis from the given point and see where it intersects the y axis. This is the y coordinate. Again, go parallel to the y axis from the given point to the x axis. The point of its intersection with x axis is the x coordinate. Now we have the coordinates and we have to find the points ...

How To: Knit with a serenity loom

This video demonstrates how to knit with a serenity loom. A serenity loom can produce a blanket up to 10 feet. To start, thread a double loop of thread through a straw. Then use the loop of thread to pull through a piece of yarn. The straw will help you place the yarn around the pegs of the loom easier. Tie a loop around the anchor of the inside of the loom. Then loop completely around each peg, being sure to place the loops in the middle of the pegs consistantly. Wrap as far as you want your...

How To: Jumpstart a dead battery

If your car has a dead battery, jumper cables can be used to connect to a car with a good battery to start your engine. Begin by positioning the two cars side-by-side, turn off the engines, and lift the hoods to access the batteries. First, attach the red cables to the positive terminals of each battery beginning with the dead battery. These terminals are usually marked with a plus sign or in red. Next, attach the black cable to the negative terminal of the good battery. The negative terminal...

How To: Make a brushed metal effect in Photoshop

In order to make a brushed metal effects in Photoshop you should first go to your gradient tool and select a dark grey or a black and click okay. Shift and drag your mouse to create the gradient. Next, go to filter, Noise, and then add noise and change the percent to 40% and click okay. Now, go to blur and ocean blur and change the angle to 0 and distance to 100 pixels. Now, for the sides to look like brushed metal, crop those sides out. Now you have a metal effect. To make a screw, click on ...

How To: Paint on a t-shirt

Learn how to ‘Paint onto your T-Shirt’ by watching this video. Materials required for this include the following:•Marabu Textil Plus Start Kit – 6 colors included with paint brush•Marabu Metallic Outliner Paints•Crocodile clips•Masking tape•Pencil•Design printed from the computer•Tracing paper•A large cardboard wrapped in cling film•A dark colored T- ShirtBegin by placing a tracing paper over the design and secure it to the table using masking tape. Next, use a pencil to trace the design on t...

How To: Safely drive a manual car

Before driving your car make sure that you put your seat belt on. There are three peddles in a car with a manual transmission. The first one on the left is the clutch. The next peddle is the brake. The peddle to the right is the gas peddle. The next thing you need to understand is the shifter. The transmission will have a number of gears, usually 4 or 5, with reverse. Make sure you study the gear pattern on the shift knob so that you know where each of the gears are when you are shifting as y...

How To: Do easy yoga poses

This video details how to do easy yoga poses for beginners. To start out, assume 'mountain pose' which involves placing the feet at about a hip width distance apart. After the feet are placed, lengthen up through the spine and roll the shoulders back while also tucking the chin slightly back. Arms are then raised upward while inhaling, and lowered while exhaling and in the same exhale lift out of the hips, hinge, then enter a forward bend. Note, it is acceptable to bend the knees in this proc...

How To: Easily use a Neti pot

This video demonstrates how to use a neti pot. This simple device is used to pour warm salt water up one nostril where it can clean out your sinuses and is then drained out the opposite nostril. This is a natural treatment for colds and allergies. You will need a neti pot, warm water, salt, a bowl, tissues and sesame oil. Dissolve the salt in the warm water in the neti pot. Turn your head to the side and pour the water into the top nostril. The water will come out the other nostril. To get th...

How To: Change a dirt bike tire

To change a dirt bike tire follow these instructions. First use the crescent wrench set to loosen, and remove the axle bolt from the wheel you are working on. Then, slide the wheel out of the stays and lay it flat on the ground in an open area. Use the screwdriver to let the air out of the tire by depressing the valve stem with the blade. Now place the palm of your hand on the tire next to the very edge of the rim, and forcefully push downward. If all of the air is out of the tire and you do ...

How To: Replace a spoke behind the freewheel

Ever had a spoke break on your bike wheel? Don't throw the wheel away! Repairing a spoke only takes a few tools and some patience. You will need, at a minimum: a freewheel tool (used to remove the part of the wheel that engages the bike chain), a wrench, and a screwdriver. First, remove the tire and inner tube from the wheel. Next, remove any parts of the broken spoke that are accessible from the underside of the wheel rim. If the spoke is attached to the side of the wheel where the freewheel...

How To: Make the z-axis lead screws for a CNC router

A CNC router machine is probably the most useful tool a hobbyist can own, but the price for a CNC machine on the market is way more than the average hobbyist is willing to spend. You can build your own CNC with very basic tools, little knowledge of machinery, mechanics, or electronics, but be warned, these machines are inherently dangerous, so wear the proper protection and use common sense. At the very least, read the instructions and precautions on every tool you use.