Create Shutdown Virus - Fake and harmless virus

How To Make A Shutdown Virus   In this presentation you will learn how to make a virus joke to your friends and shut down their computer. Replace one of their used icons on the desktop with a fake one . And when they try to open it, their computer will close. 

== Code Details

@echo off
color 1a (Changes the colour)
echo (Displays a text)
echo: (leaves a line)
ping -n 2 127.0.0.1>nul (pings your localhost - nothing much)
shutdown.exe (shutdown) ==

Preparing the Virus

1. Read and understand the warnings!
2. Open Notepad in Windows. You can do this by navigating to Start > Programs > Accessories > Notepad, or simply by entering "Notepad" under Start > Run.
3. Copy and Paste the Code of the "virus" into Notepad.
4. Click File > Save as.
5. Decide for a location to save the virus. You should chose a location where the user won't find the file, so saving it on the desktop would be a bad idea!
6. Change ".txt" to "All files" in the file type drop-down menu.
7. Chose a harmless filename. Replace the ".txt" at the with ".bat"
8. Click on save and close Notepad.

Making a fake Icon

Now that we have the virus saved, we should prepare a decoy:

1. Right click on the desktop and go over to "new" then click "short cut".
2. For the location of the short cut chose our Virus.
3. Click next.
4. Give the shortcut a name that your victim will click on. ("Music for free", "My Documents", "Critical Windows-Update" "Get Free Cinema-Tickets" or "Internet Explorer").
5. Click on "Finish".
6. Right click on the shortcut you have just made and chose "properties". Now click on the "chose icon" button and scroll through the list of icons.
7. Decide for one of the icons that fits well to the name, chose it by clicking on it and hit OK twice.

Shock your Victim

This Website will harm you.It will infect your computer form Deadly Virus.
By : Virus Department 2010

Abort Shutdown-Countdown

Sometimes it might be necessary to stop the countdown before the computer shuts down. Here's how to do it:

1. Open the start menu.
2. Click Run
3. Type "shutdown.exe -a"
4. Or go to Run
5. Type CMD
6. And then type "shutdown -a" and press enter.

Facebook wannabe Diaspora hit on security issues

Testers of an early version of the source code say it's full of holes

The open-source project called Diaspora is being pitched as a secure and more privacy-friendly alternative to Facebook, but it is already running into early criticism over security issues by those who say they have tested it.

The team behind Diaspora this week released a pre-Alpha version of their source code on the open-source hosting site GitHub. The code is designed to spur development activity around the platform.
The code release was accompanied by a warning that it is by no means bug free. "We know there are security holes and bugs, and your data is not yet fully exportable," Diaspora said in announcing the Alpha release.
Even with that caveat, though, early reviewers have been unsparing in their criticism of Diaspora's security features -- or lack thereof.
"Basically, the code is really, really bad," Steve Klabnik, CTO of CloudFab, wrote in his blog. "I don't mean to rain on anyone's parade, but there are really, really bad security holes" in the code.
Diaspora was born earlier this year largely in response to privacy issues related to Facebook's data collection and usage practices. The effort is being spearheaded by four New York University students: Daniel Grippi, Maxwell Salzberg, Raphael Sofaer and Ilya Zhitomirskiy.
In the months since the effort began, it has attracted growing interest from Internet users and more than $200,000 in donations on sites such as Kickstarter. It has also received considerable attention from mainstream media such as the New York Times which ran a lengthy profile soon after Diaspora was launched.
The basic premise behind Diaspora is that it will allow users to have social networking functionality similar to that offered by Facebook, but with far greater control over personal data.
According to a description on the project's Web site, Diaspora will allow users to set up 'seeds' or personal servers, that they can use to store their personal data and share it directly with their friends instead of routing it through a centralized hub as with Facebook. "Friend another seed and the two of you can synchronize over a direct and secure connection instead of through a superfluous hub," the site says. "Our real social lives do not have central managers, and our virtual lives do not need them."
But initial reviews and comments on sites such as GitHub, Y-Combinator and Slashdot suggest that many are disappointed over the quality of the code released so far.
Klabnik himself described security errors in the code as the sort that a professional programmer would not make. In an interview, Klabnik said the sort of errors he discovered are of the sort that allows anyone to change another user's name, password, profile, images and other details easily. "There's nothing you can't do to someone else's account," he said.
While it's natural to expect some errors in pre-release code, the sort of flaws present in Diaspora, and the sheer number of them, is unusual, he said. "The whole point of this is Facebook doesn't protect privacy. If that's the goal, people have a reasonable expectation that this would be better."
Meanwhile, Patrick McKenzie, a blogger and software developer based in Japan, has been using Twitter to warn users to stay away from early versions of Diaspora because it is "screamingly unsafe." McKenzie said he has so far discovered at least five major vulnerabilities, with the first one found less than five minutes after he downloaded the source code.
The sort of security issues he discovered include cross-site scripting flaws, code injection vulnerabilities as well as authentication and authorization flaws. The fact that the code is freely available to anyone on the Internet means that many people will install and use it without being aware of the security issues, he said.
On GitHub, reviewers have so far raised more than 140 issues, several of them dealing with security concerns such as cross-site scripting errors and code-injection errors.
Diaspora did not respond to e-mailed requests for comment. However, the project has its share of supporters. Many of those commenting on the release of the Alpha code said that bugs being uncovered in code at this stage are not all that uncommon.
"This code was released to developers as an incomplete preview," cilantro said on Y-Combinator. "I'm not sure why people are holding it to the same standards as a finished product that's being released to end users. Seems like a pretext to talk trash."
Read more about Web 2.0 and Web Apps in Computerworld's Web 2.0 and Web Apps Topic Center.

6 useful Wi-Fi tools for Windows

Free or cheap apps can help troubleshoot your wireless network, turn your laptop into a hot spot and more

We live in a mobile world; if you have a laptop (and who doesn't?), that means constantly connecting to the Internet via Wi-Fi. You most likely use Wi-Fi not just when you're on the road at cafés, airports or hotels, but to connect to your home network too. You might even connect to a wireless network at the office. Here's the problem: Windows doesn't do a particularly good job of providing Wi-Fi tools. Yes, it will let you search for and connect to nearby networks, but that's about the extent of it. What if you want to get detailed information about every Wi-Fi network within range, troubleshoot your network, turn your laptop into a portable Wi-Fi hot spot or keep yourself safe at public hot spots? Windows is no help.
That's why we've rounded up these six downloads. They'll do all these things and more. Five out of the six are free; the other is inexpensive and lets you try it out first.

InSSIDer

MetaGeek's InSSIDer is a great tool for finding Wi-Fi networks within range of your computer and gathering a great deal of information about each. It's also useful for troubleshooting problems with your own Wi-Fi network.
For every Wi-Fi network InSSIDer finds, it shows you the MAC address of the router, the router manufacturer (if it can detect it -- it usually does), the channel it's using, the service set identifier (SSID) or public name of the network, what kind of security is in place, the speed of the network and more. In addition, it displays the current signal strength of the network, as well as its signal strength over time.

InSSIDer finds a great deal of information about nearby wireless networks and reports on what it finds.

How would you use the software to troubleshoot your wireless network? If you see that your network uses the same channel as nearby networks with strong signals, you'll know that you should change the channel your network transmits over and thereby cut down on potential conflicts. (Most routers have a settings screen that lets you do this.)
You can also use the software to detect "dead zones" that don't get a strong Wi-Fi connection. Walk around your home or office with InSSIDer installed on your laptop to see where signal strength drops. You can either avoid using a computer in those spots or else try repositioning the wireless router to see if it helps with coverage.
Whether you need to troubleshoot a network or find Wi-Fi hot spots to which you want to connect -- or you're just plain curious -- this is one app you'll want to download and try.
Price: Free
Compatible with: Windows XP, Vista and 7 (32- and 64-bit)
Download InSSIDer

Xirrus Wi-Fi Inspector

This is another excellent program that sniffs out Wi-Fi networks and shares pertinent information about them, such as how close or far away they are. Xirrus Wi-Fi Inspector shows any nearby hot spots on a radar-like display. A separate pane offers detailed information about every hot spot it finds, including signal strength, the kind of network (802.11n, for example), the router vendor, the channel on which the network transmits and whether it's an access point or an ad hoc network.
In a pane next to the radar, Wi-Fi Inspector shows you even more detailed information about the network to which you're currently connected, including your internal IP address, external IP address, DNS and gateway information, and so on.

Xirrus Wi-Fi Inspector uses a radar-like interface to show you information about nearby hot spots.

Why use Xirrus Wi-Fi Inspector rather than MetaGeek's InSSIDer? Wi-Fi Inspector's simpler, cleaner layout makes it easier to see information about all of the hot spots at a glance. It also shows the relative physical distance between you and each hot spot on its display. And there's no denying the overall coolness factor of a radar-like display.
However, if you want more detailed information, including the relative signal strengths of all nearby wireless networks, InSSIDer is a better bet.
Price: Free
Compatible with: Windows XP SP2+, Vista and 7
Download Xirrus Wi-Fi Inspector

Connectify

This very nifty piece of free software lets you turn a Windows 7 PC (it only works with Windows 7) into a Wi-Fi hot spot that can be used by nearby devices -- your smartphone, for example, or devices that your co-workers are using in the same location.

Connectify turns your laptop into a mobile Wi-Fi hot spot.

The PC on which you install it will, of course, need to be connected to the Internet itself and have Wi-Fi capability so it can provide access to other devices. The computer doesn't necessarily need a wired connection to the Internet (although it won't hurt to have one); its Wi-Fi card can perform double-duty as Wi-Fi signal receiver and transmitter.
Setting up a hot spot is simple: Once you have a connection, run Connectify on your PC and give your hot spot a name and password. Your computer's Wi-Fi card will begin broadcasting a Wi-Fi signal that other devices can connect to, in the same way they can connect to any other hot spot. (Your PC card will broadcast in whatever Wi-Fi protocol it was built for. It also should support devices that use earlier protocols -- for example, an 802.11n signal should allow 802.11b/g/n devices to connect.)
Since your hot spot is password-protected, only people who know the password can use it; the signal is secured with WPA2-PSK encryption.
You can even use Connectify to set up a local network without an external Internet connection. Run it as a hot spot, and nearby devices can connect to each other in a network, even though there's no Internet access. You can use this for sharing files in a workgroup or setting up a network for multiplayer games.
Note that I had problems connecting my Mac to a Windows 7 machine running a Connectify-created hot spot, but I was able to make the connection with other PCs and devices.
Price: Free
Compatible with: Windows 7
Download Connectify

WeFi

Tools like InSSIDer and Xirrus Wi-Fi Inspector are great for finding hot spots that are currently in range of your laptop. But if you want to find hot spots in other locations -- a part of town that you'll be in later in the day, for example, or a city you'll be visiting next week -- you'll want to give WeFi a try.
Like other Wi-Fi sniffing tools, WeFi uses your Wi-Fi card to find your current location and show you nearby hot spots. You can click on a link to see a particular hot spot on a map, along with its address. (Note, however, that in practice I found it was not always accurate.)
But you can also type in a different location to see hot spots near that location. Click the Wi-Fi Maps tab and enter an address; a map of that location will appear on Google Maps and you'll be provided with various details about nearby hot spots, such as type (municipal, hotel, café and so on), distance from the location and whether there's an access fee.

WeFi helps you find hot spots both near your computer and in other locations.

WeFi also helps you manage how to connect to hot spots. It can, for example, automatically connect you only to your favorite hot spots or only to hot spots that have been discovered by other WeFi members.
The basic version of WeFi is free, but there's also a version called WeFi Premium that you have to pay for. WeFi Premium finds and connects you to paid hot spots. The amount you pay for WeFi Premium varies depending on whether you want to pay an hourly rate, prepay for a certain number of minutes and so on. You'd be better off skipping WeFi Premium; it's much easier to find paid hot spots on your own.
Price: Free
Compatible with: Windows XP, Vista and 7
Download WeFi

Hotspot Shield

When you connect to the Internet via a public hot spot, you put yourself at risk because someone might try to sniff your packets or otherwise snoop on what you're doing online. Hotspot Shield, a free, lightweight piece of software from AnchorFree, promises to keep you safe by creating a secure VPN connection and encrypting all of your communications.

Hotspot Shield lets you use a VPN to protect yourself while using a public hot spot.

As you connect to a hot spot, simply run Hotspot Shield, and it will begin protecting you using the HTTP Secure (HTTPS) protocol. It launches a tab to show you that you're connected; to disconnect, click the Disconnect button on the tab. To connect again, click the Connect button. You can also connect and disconnect by right-clicking the program's icon in the System Tray.
You'll need to take some care when you first install Hotspot Shield. If you don't want its toolbar installed in your browser, uncheck the box next to "Include the Hotspot Shield Community Toolbar." Also, make sure to uncheck the boxes for setting Hotspot Shield Private Search as your default search, setting your home page to the Hotspot Shield Private Search page, fixing "Page Not Found" errors, and enabling you to get instant alerts from the software -- those options won't do you much good and will likely annoy you.
A few caveats: When you run the software, it will open a browser tab to the product's home page, which has ads on it. You can close that tab if you want; the program works fine without it open. Also, according to a page on the Hotspot Shield Web site, you might see targeted ads appear above Web pages you visit. That hasn't happened to me, although I've seen complaints elsewhere around the Web about intrusive ads. Finally, some people who have downloaded the program have complained that it is unstable, or they were unable to uninstall it. In my tests I didn't run across those problems, but be forewarned that others have reported them.
While AnchorFree offers Hotspot Shield for free, other companies sell similar VPN software products to protect you at public hot spots. ConnectInPrivate, for example, offers software and a service that costs $14.99 per month.
Price: Free
Compatible with: Windows 2000, XP, Vista and 7 (also Mac OS X 10.4, 10.5 and 10.6)
Download Hotspot Shield

Plug and Browse

If you use your laptop to connect to more than one wireless or wired network, you might be spending more time than you'd like switching network settings.
For example, if you're a typical notebook user, at work you might have a static IP address, a default network printer, a set of scripts that need to be run, proxy servers for security and a set of mapped network drives. At home, you might have a DHCP-assigned network address on a wireless network as well as a home printer, and you might use Windows Firewall but no proxy servers. And then there's that coffee shop hot spot that you visit regularly with its own set of requirements, such as a DHCP-assigned network address.
Each time you switch networks, chances are that you have to tweak settings such as your default printer, mapped network drives, proxy servers and so on.
Plug and Browse from Interactive Studios puts an end to all that manual configuration. It allows you to create profiles for all the networks you use, and then when you switch from one network to another, you simply choose the new network's profile. All your settings will be intact.

Plug and Browse makes it easy to switch among multiple networks, including Wi-Fi-based ones, without having to go through constant configurations.

A very nice touch is that you can tell Plug and Browse to automatically create a profile for you and it will grab all of your current settings for the network to which you're connected. You can still edit the settings after that if you need to.
Price: $39.99 (with 30-day free trial)
Compatible with: Windows XP, Vista and 7
Download Plug & Browse
Preston Gralla is a contributing editor for Computerworld.com and the author of more than 35 books, including How the Internet Works (Que, 2006).
Read more about Wireless Networking in Computerworld's Wireless Networking Topic Center.