Yahoo Messenger Worm/Virus Attack

October 31, 2006 at 10:28 am | In Technology, Tutorial, hack & crack | 13 Comments

Original posting from: http://forums.sureshkumar.net/showthread.php?t=7790
Here the posting:

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..
http://forums.sureshkumar.net/showthread.php?t=94

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


13 Comments »

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  1. i made a removal tool for the above mentioned trojan .. u can download it from http://www.sendspace.com/file/8ohu68
    .. hope it helps someone ..

    mohnish(x-microsoft tech support executive)

  2. Hi Suresh,

    I donno why, my “RUN” is lost after the virus is in my pc. Now how am going to do it when I don have that so called “RUN” ?

    Please enlighten. Thanks

  3. That was really helpful..you, a genius! Your instructions were so clear, it made me feel really smart after I killed the damn virus. thanks again..

  4. goto WINDOWS\system32 and run the file named gpedit.msc
    After that User Configuration > Administrative Templates > Start Menu And Taskbar
    Find the line Remove run menu from Start Menu and double click it
    select disabled and click ok (Note: if disabled option is already selected, select not configured option instead)
    now try windows + R .. if it still doesnt work
    goto task manager and end explorer.exe process
    then click on file > new … explorer.exe and press enter
    now try windows + R ..
    ne probs mail me at mohnish_loves_none@hotmail.com
    — mohnish (x-microsoft tech support executive)

  5. mohnish and suresh
    thankyou …..it really works….i did it…
    now its free from viruus
    thanx again

  6. hi fren i have problem..i cant remove the virus..its give some error msg..i dont know.. i just follow what u say..i just copy the regedit comment and past it on run..when i click ok it give erro msg..that is (cannot find the file “REG” (or one of this its components)..make sure the path and that all required libraries are available)…hmm i dont know what to do..pls help me to remove this…plssssss.reply me soon as posbile..

  7. hi fren i have problem..i cant remove the virus..its give some error msg..i dont know.. i just follow what u say..i just copy the regedit comment and past it on run..when i click ok it give erro msg..that is (cannot find the file “REG” (or one of this its components)..make sure the path and that all required libraries are available)…hmm i dont know what to do..pls help me to remove this…plssssss.reply me soon as posbile.. pls mail me at rajes_raj07@hotmail.com..

  8. yes same problem here. the virus make my hard disk read only thats why i cant delete the svhost32.exe.

  9. Hello there,

    i have downloaded svchost32-removal.zip and have executed but still that adware unable to remove,,,regedit got disable,,taskmanager got disable,, its not executing thru run command any feedback will be greateful to you

  10. Wow mohnish, That pretty tool did the work.

    I did a full Scan (3 hrs) using Norton But did n’t help.
    Your tool has done it in 2 mins!!!

    Thanx a Lot.

  11. Dear Ch

    Thanks for given this kind of information because i save my computer

  12. hello guys anyone can help me` my friend download some files then after that he try to install then start menu the drive c and d are being disable then how can i kill this virus??? please help me

    here`s my email add

    haranaya@gmail.com

    thank you so much


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