Yahoo Messenger Virus Attack

[evishy]

There is a very bad virus attack on Yahoo Messenger where it will take control of your messenger and without your knowledge sends some messages with a website links which contains the virus, to your friends list, remind you without YOUR KNOWLEDGE so be careful, try to do the following things to remove if your are effected.

Start Menu >> Run

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f

copy & paste in run & press enter

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f

copy & paste in run & press enter

& delete the files svhost32.exe from ur comp & temp folder after killing the process

Regards
Evishy

[Admin]

It is one of the most powerful Trojan /virus I have ever seen.. If your computer is infected with this virus " It will sends the nsl-school.org url to all of your friend list in yahoo messenger using your ID . So with in few hours many of your friends will get infected with it.

I don't know the actual target of the idiot who created it. May be to advertise his site or to steal very imp data from your computer. I resolved the problem manually from 2 infected PC's. Just go through the below steps carefully.

What are those links ?:

Nsl-school.org or other (Do not open this url in your browser).

If you are infected with it what is going to happen ?

1: It sets your default IE page to nsl-school.org, you can’t even change it back to other page. If you open IE from your comp some malicious code will automatically executed into your computer.

2: It will disables the Task manager / reg edit. So you can’t kill the Trojan process anymore.

3: Files that are gonaa installed by this virus are svhost.exe , svhost32.exe , internat.exe.

you can find these files in windows/ & temp/ directories.

4: It will sends the secured & protected information to attacker

How to remove this manually from your computer ?

1: Close the IE browser. Log out messenger / Remove Internet Cable.

2: To enable Regedit

Click Start, Run and type this command exactly as given below: (better - Copy and paste)

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f

3: To enable task manager : (To kill the process we need to enable task manager)

Click Start, Run and type this command exactly as given below: (better - Copy and paste)

REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f

4: Now we need to change the default page of IE though regedit.

Start>Run>Regedit

From the below locations in Regedit chage your default home page to google.com or other.

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Main

HKEY_ LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main

HKEY_USERS\Default\Software\Microsoft\Internet Explorer\Main

Just replace the attacker site with google.com or set it to blank page.

5: Now we need to kill the process from back end. Press Ctrl + Alt + Del

Kill the process svhost32.exe . ( may be more than one process is running.. check properly)

6: Delete svhost32.exe , svhost.exe files from Windows/ & temp/ directories. Or just search for svhost in your comp.. delete those files.

7: Go to regedit search for svhost and delete all the results you get.

Start menu > Run > Regedit >

8: Restart the computer. That’s it now you are virus free.

I don’t know whether any removal patch that works for this Trojan/virus. But we can easily delete it manually.

** Send this URL to all of your friends through messenger so that they can get rid off this virus. **

Digg it


Conclution : Better not to open any unknown url from your Computer.. There are lot of black hat hackers who are waiting to steal your credit card numbers, passwords or what not.... Use a better firewall & updated anti virus. However an Antivirus can do nothing if the virus is very latest...

Let me know if you need any more help...

To know more about protecting your passwords.. read my other article here..
Protect your passwords from Hackers

Cheers,
Sureshkumar CH,
Information Security Specialist.
www.sureshkumar.net.

[Spoorthi]

thank u admin,evishy

[sangeethadutta]

Thanks for sharing such a useful info.............

[RisingSun]

Description of SVHOST32.EXE
Process that is downloaded, installed, and run by several different viruses, worms, and trojans.

Trojans are programs that can appear to serve a legitimate purpose but actually have an unwanted or harmful effect.

A large segment of trojan programs download other harmful software components to a user's PC without his/her knowledge.

This application is most likely downloaded and installed by another application that is considered to be adware or spyware.

[Yogesh R]

Thanks admin.....

[AjayKumar.Kataram]

thanks very much

when i delete svhos from task manager my computer restarts automatically after 1 minute

[RisingSun]

Kill the process by statrting the comp in safe mode.

[vjsreevs]

thanq 4 the usefull info ...

hats of to the genious suresh kumar sirji good going good job

thnxxx worked for me 2

This is the first link I found with some good information to remove the virus. I don't think there is any patch yet ready for this 1 as I have been searching since night. I was hit yesterday night. While trying to remove, I was able to unlock the registry but not task manager. Later, somehow task manager worked and I removed all svhost and deleted svhost.exe. But, when I restarted it was back......

Maybe I had not cleaned properly...will try your steps once i get back home and try again.

Thanks for the info.

[RisingSun]

You have to change the default page of IE.. if not the malicious code will automatically enters your computer.