If, like everyone and their mom, you’re using Facebook, you may find yourself hijacked by Koobface. Koobface works by adding links to social networking profiles, while posing as a video codec. If you click a link and install the “video codec,” you’ll actually download Koobface. Koobface launches and searches your PC for social networking site cookies, and uses these cookies to modify your profiles with Koobface links. Most of these Koobface links will feature teaser texts such as “You look so amazing funny on our new video,” “Paris Hilton tosses Dwarf on the street”, “Examiners caught download grades from the internet,” “Hello; You must see it!!! LOL”
“My friend catched [sic] you on hidden cam,” or “Is it really celebrity?”. If you click the message, you’ll be prompted to download a video codec, which is really the Koobface worm.

If you’ve received a Koobface popup that reads “Error: Error installing Codec. Please contact support,” let me show you how to remove Koobface for free.

Do You Have Koobface.B Worm?

When you’re infected with badware — whether it’s Koobface.B Worm, spyware, adware, a Trojan, or a virus — there are a few key symptoms. Have you noticed…

• Slow computer performance: It just takes one parasite like Koobface.B Worm to slow your computer dramatically. If your PC takes longer than usual to reboot, or if your Internet connection is unusually slow, you may be infected with Koobface.B Worm.
• New desktop shortcuts or switched homepage: Badware like Koobface.B Worm may change your Internet settings to redirect your homepage to another site. Badware can even add desktop shortcuts to your PC.
• Annoying popups: Badware can bombard your computer with popup ads, even when you’re not online. Through these popups, you may be tricked into downloading more spyware.

How to Remove Koobface.B Worm Manually

Before we get started, you should backup your system and your registry, so it’ll be easy to restore your computer if anything goes wrong.

To remove Koobface.B Worm manually, you need to delete Koobface.B Worm files. Not sure how to delete Koobface.B Worm files? Click here, and I’ll show you. Otherwise, go ahead and…

Stop Koobface.B Worm processes:

Delete Koobface.B Worm files:

Get rid of Koobface.B Worm registry keys:

Note: In any Koobface.B Worm files I mention above, “%UserProfile%” is a variable referring to your current user’s profile folder. If you’re using Windows NT/2000/XP, by default this is “C:\Documents and Settings\[CURRENT USER]” (e.g., “C:\Documents and Settings\JoeSmith”). If you have any questions about manual Koobface.B Worm removal, go ahead and leave a comment.

How Do You Remove Koobface.B Worm Files?

Need help figuring out how to delete Koobface.B Worm files? While there’s some risk involved, and you should only manually remove Koobface.B Worm files if you’re comfortable editing your system, you’ll find it’s fairly easy to delete Koobface.B Worm files in Windows.

How to delete Koobface.B Worm files in Windows XP and Vista:

1. Click your Windows Start menu, and then click “Search.”
2. A speech bubble will pop up asking you, “What do you want to search for?” Click “All files and folders.”
3. Type a Koobface.B Worm file in the search box, and select “Local Hard Drives.”
4. Click “Search.” Once the file is found, delete it.

How to stop Koobface.B Worm processes:

1. Click the Start menu, select Run.
2. Type taskmgr.exe into the the Run command box, and click “OK.” You can also launch the Task Manager by pressing keys CTRL + Shift + ESC.
3. Click Processes tab, and find Koobface.B Worm processes.
4. Once you’ve found the Koobface.B Worm processes, right-click them and select “End Process” to kill Koobface.B Worm.

How to remove Koobface.B Worm registry keys:

Because your registry is such a key piece of your Windows system, you should always backup your registry before you edit it. Editing your registry can be intimidating if you’re not a computer expert, and when you change or a delete a critical registry key or value, there’s a chance you may need to reinstall your entire system. Make sure your backup your registry before editing it.

1. Select your Windows menu “Start,” and click “Run.” An “Open” field will appear. Type “regedit” and click “OK” to open up your Registry Editor.
2. Registry Editor will open as a window with two panes. The left side Registry Editor’s window lets you select various registry keys, and the right side displays the registry values of the registry key you select.
3. To find a registry key, such as any Koobface.B Worm registry keys, select “Edit,” then select “Find,” and in the search bar type any of Koobface.B Worm’s registry keys.
4. As soon as Koobface.B Worm registry key appears, you can delete the Koobface.B Worm registry key by right-clicking it and selecting “Modify,” then clicking “Delete.”

How to delete Koobface.B Worm DLL files:

1. First locate Koobface.B Worm DLL files you want to delete. Open your Windows Start menu, then click “Run.” Type “cmd” in Run, and click “OK.”
2. To change your current directory, type “cd” in the command box, press your “Space” key, and enter the full directory where the Koobface.B Worm DLL file is located. If you’re not sure if the Koobface.B Worm DLL file is located in a particular directory, enter “dir” in the command box to display a directory’s contents. To go one directory back, enter “cd ..” in the command box and press “Enter.”
3. When you’ve located the Koobface.B Worm DLL file you want to remove, type “regsvr32 /u SampleDLLName.dll” (e.g., “regsvr32 /u jl27script.dll”) and press your “Enter” key.

That’s it. If you want to restore any Koobface.B Worm DLL file you removed, type “regsvr32 DLLJustDeleted.dll” (e.g., “regsvr32 jl27script.dll”) into your command box, and press your “Enter” key.

Did Koobface.B Worm change your homepage?

1. Click Windows Start menu > Control Panel > Internet Options.
2. Under Home Page, select the General > Use Default.
3. Type in the URL you want as your home page (e.g., “http://www.homepage.com”).
4. Select Apply > OK.
5. You’ll want to open a fresh web page and make sure that your new default home page pops up.

Koobface.B Worm Removal Tip

Is your computer acting funny after deleting any Koobface.B Worm files? I recommend using a program like File Recover from PC Tools. File Recover saves deleted files that otherwise can’t be recovered by Windows operating sytem.

Want to save time finding Koobface.B Worm files? Download Spyware Doctor, let it find the Koobface.B Worm files for you, and then manually delete Koobface.B Worm files.

How Did You Get Koobface.B Worm?

Wondering how Koobface.B Worm ended up on your PC? If you’re infected with Koobface.B Worm or other badware, perhaps you were using…

• Freeware or shareware: Did you download and install shareware or freeware? These low-cost or free software applications may come bundled with spyware, adware, or programs like Koobface.B Worm. Sometimes adware is attached to the free software to “pay” developers for the cost of creating the software, and more often spyware is secretly attached to free software to harm your computer and steal your personal and financial information.
• Peer-to-peer software: Do you use a peer-to-peer (P2P) program or other application with a shared network? When you use these applications, you put your system at risk for unknowingly downloading an infected file, including applications like Koobface.B Worm.
• Questionable websites: Did you visit a website that’s of questionable nature? When you visit malicious sites that are fishy and phishy, badware may be automatically downloaded and installed onto your computer, sometimes including applications like Koobface.B Worm. I recommend you use Firefox web browser, if you don’t already.

Understanding Koobface.B Worm

If you’re infected with Koobface.B Worm, you should know what you’re fighting. I’ll explain some definitions related to Koobface.B Worm.

Koobface.B Worm May Be a Worm

Worms are virus-like badware with destructive codes. Worms are able to mutate, or replace their own code by automatically, which makes worms very dangerous, difficult to find, and hard to delete. Similar to viruses, worms can spread to the other computers by secretly and automatically emailing themselves to other Internet users in your address book. The main difference between worms and viruses is that a worm wil replace your computer files rather than simply inserting their code into your files.