Remove Koobface.C. Description and removal instructions

Title: Koobface.C	Also known as: W32.Koobface.C
Type: Worms	Severity scale: (53 / 100)

Koobface.C is a worm that spreads through social networking websites such as Twitter, Facebook, hi5, Friendster, Netlog and others. Usually, this worm sends messages to users of the social networking site pointing to a copy of itself. For example, you may receive a messages with the following text: "You look just awesome in this new movie." This message could lead you to the Koobface virus. Koobface C may be also dropped onto your computer by W32.Koobface.A or W32.Koobface.B.

Once installed, Koobface.C will create the following files: twitty[TWO DIGIT NUMBER].exe and tw[FIVE DIGIT NUMBER].dat. These malicious files will be named twitty01.exe, twitty02.exe and etc., changing the [TWO DIGIT NUMBER]. Then this worm will create a registry entry, so that it could be started when Windows starts. However, the worst thing is that Koobface.C opens a back door allowing an attacker to perform any of the following actions: download and execute a file, open an image, update itself, block an IP address, Post a message to twitter.

If you find that your computer is infected with W32.Koobface.C, please use the manual removal guide below to delete this infection from the system.

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Related files: tw[FIVE DIGIT NUMBER].dat, twitty02.exe., for example twitty01.exe, twitty[TWO DIGIT NUMBER].exe

Koobface.C properties:
• Allows remote user connection
• Connects itself to the internet
• Hides from the user
• Stays resident in background

Automatic Koobface.C removal:

remover for Koobface.C

Koobface.C manual removal:

Kill processes:
twitty[TWO DIGIT NUMBER].exe

HELP:
how to kill malicious processes

Delete registry values:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"systwtray" = "%Windir%\twitty[TWO DIGIT NUMBER].exe"

HELP:
how to remove registry entries

Delete files:
twitty[TWO DIGIT NUMBER].exe, for example twitty01.exe, twitty02.exe. tw[FIVE DIGIT NUMBER].dat

HELP:
how to remove harmful files

Other programs to remove Koobface.C:

• Malwarebytes Anti Malware - Review - Download
• Malwarebytes Anti Malware - Review - Download
• Windows Defender - Review - Download

Information added: 17/07/09
Information updated: 17/07/09

Additional resources related to Koobface.C:

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