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Windows reboot problem


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#1 cafcjgreen

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Posted 19 April 2011 - 12:40 PM

Hi,

I had a ramnit.b virus on my pc and I tried using malwarebytes, microsoft security essentials and avg but every time I removed the virus and restarted my pc it came back. I then decided to reboot windows and it seemed to go well but when it gets onto the please wait screen an error box comes up saying "WinZip Self-Extractor header corrupt. Possible cause: bad disk or file transfer error" and I cannot close it as the mouse and keyboard are not working.

Is there anything I can do to solve this issue?

Thanks in advance

Cafc

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#2 Allan

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Posted 19 April 2011 - 12:45 PM

I suggest you post in the Am I Infected forum on this site.

#3 cafcjgreen

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Posted 19 April 2011 - 12:49 PM

Ok I have done it, thanks for your advice :)

#4 Eyesee

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Posted 19 April 2011 - 01:06 PM

"I then decided to reboot windows "

Please clarify this statement. Do you mean restart the computer to reboot or do you mean that you decided to reload Windows?

" when it gets onto the please wait screen an error box comes up saying "WinZip Self-Extractor header corrupt. "
What steps did you take to see this? If you are reinstalling Windows you will never see this message.
In the beginning there was the command line.

#5 cafcjgreen

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Posted 19 April 2011 - 01:15 PM

I used the system restore feature during start up.

When windows is restarting after the restore the error box comes up

#6 hamluis

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Posted 19 April 2011 - 01:17 PM

<<I had a ramnit.b virus on my pc...>>

Following is a canned response re this malware item:

"I'm afraid I have very bad news.

Win32/Ramnit (and related variants) is a dangerous file infector with IRCBot functionality which infects .exe, and .HTML/HTM files, and opens a back door that compromises your computer. Using this backdoor, a remote attacker can access and instruct the infected computer to download and execute more malicious files. The infected .HTML or .HTM files may be detected as The infected .HTML or .HTM files may be detected as Virus:VBS/Ramnit.A or VBS/Generic. Win32/Ramnit.A!dll is a related file infector often seen with this infection. It too has IRCBot functionality which infects .exe, .dll and .HTML/HTM files and opens a back door that compromises your computer. This component is injected into the default web browser by Worm:Win32/Ramnit.A which is dropped by a Ramnit infected executable file.

-- Note: As with most malware infections, the threat name may be different depending on the anti-virus or anti-malware program which detected it. Each security vendor uses their own naming conventions to identify various types of malware.With this particular infection the safest solution and only sure way to remove it effectively is to reformat and reinstall the OS.

Why? The malware injects code in legitimate files similar to the Virut virus and in many cases the infected files (which could number in the thousands) cannot be disinfected properly by your anti-virus. When disinfection is attempted, the files often become corrupted and the system may become unstable or irreparable. The longer Ramnit.A remains on a computer, the more files it infects and corrupts so the degree of damage can vary.

Ramnit is commonly spread via a flash drive (usb, pen, thumb, jump) infection where it copies Worm:Win32/Ramnit.A with a random file name. The infection is often contracted by visiting remote, crack and keygen sites. These type of sites are infested with a smörgåsbord of malware and a major source of system infection.

In my opinion, Ramnit is not effectively disinfectable, so your best option is to perform a full reformat as there is no guarantee this infection can be completely removed. In most instances it may have caused so much damage to your system files that it cannot be completely cleaned or repaired. Security vendors that claim to be able to remove file infectors cannot guarantee that all traces of it will be removed as they may not find all the remnants. If something goes awry during the malware removal process there is always a risk the computer may become unstable or unbootable and you could loose access to all your data.

Further, your machine has likely been compromised by the backdoor Trojan and there is no way to be sure the computer can ever be trusted again. It is dangerous and incorrect to assume the computer is secure even if your anti-virus reports that the malware appears to have been removed.

Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Please read:

Whenever a system has been compromised by a backdoor payload, it is impossible to know if or how much the backdoor has been used to affect your system...There are only a few ways to return a compromised system to a confident security configuration. These include:
• Reimaging the system
• Restoring the entire system using a full system backup from before the backdoor infection
• Reformatting and reinstalling the system

Backdoors and What They Mean to You

This is what Jesper M. Johansson at Microsoft TechNet has to say: Help: I Got Hacked. Now What Do I Do?.

The only way to clean a compromised system is to flatten and rebuild. That’s right. If you have a system that has been completely compromised, the only thing you can do is to flatten the system (reformat the system disk) and rebuild it from scratch (reinstall Windows and your applications).

"

Louis

#7 cafcjgreen

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Posted 19 April 2011 - 01:19 PM

Oh deary me.

So basically I am screwed? I cant reinstall xp as I dont have a disk so should I just give up haha

#8 hamluis

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Posted 19 April 2011 - 01:28 PM

Sorry...but that's why Microsoft has always encouraged every user...to use some backup procedures routinely.

If you have an OEM system (made by Dell, Lenovo, etc.), you can try contacting the manufacturer for the appropriate disks that would allow restore to factory defaults.

My question would be...just how did you ascertain that you have this particular malware item on your system?

I'd hate to have your statement regarding what is wrong...prove to be inaccurate.

Louis

Edited by hamluis, 19 April 2011 - 01:29 PM.


#9 cafcjgreen

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Posted 19 April 2011 - 01:32 PM

Well all the anti virus programs told me I had the ramnit virus.

My main issue now is due to the winrar error I get on load up I cannot actually get onto windows to do anything.

#10 hamluis

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Posted 19 April 2011 - 04:38 PM

<<My main issue now is due to the winrar error I get on load up I cannot actually get onto windows to do anything.>>

Noooo...I don't think so. I think your main issue is that you have been infected by malware which calls for a clean install.

Since you've indicated inability do such...I'd say that your system is still infected and the words which I previously posted...probably ought to carry a little more weight in assessing your options.

Louis

#11 Allan

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Posted 19 April 2011 - 04:41 PM

I suggest you post in the Am I Infected forum on this site.



#12 Animal

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Posted 19 April 2011 - 05:19 PM

The member has posted in Am I infected as per your initial suggestion. However with the revelation of "I had a ramnit.b virus on my pc..." that topic was closed with a reply that matches the one above. It is the staff's consensus to follow the directions and suggestions that hamluis provided in topic reply #6 above.

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#13 Allan

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Posted 19 April 2011 - 05:27 PM

Sorry - got a little thrown off by the direction the thread took.... my mistake. Thanks.

Edited by Allan, 19 April 2011 - 05:28 PM.


#14 Animal

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Posted 19 April 2011 - 05:59 PM

No problem. :thumbup2: Thank you for your understanding.

The Internet is so big, so powerful and pointless that for some people it is a complete substitute for life.
Andrew Brown (1938-1994)


A learning experience is one of those things that say, "You know that thing you just did? Don't do that." Douglas Adams (1952-2001)


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#15 cafcjgreen

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Posted 20 April 2011 - 10:28 AM

Right

I had the ramnit.b virus on my pc which I could not remove with anti virus programs so I decided to use complete system restore and reset the PC to factory settings. The restore completed but when it was the PC was restarting it reached the Windows XP please wait... screen and an error box popped up saying "WinZip Self-Extractor header corrupt." I could not close the error box.




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