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Win32 Ramnit G


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#1 EmoKitty

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Posted 24 January 2011 - 08:58 AM

My friends computer is a total mess. It have got something that is called Win32 Ramnit G (detected by Avast). It uses the process name firefox.exe when running it's programs. It's infecting loads of programs and make them not to work. ( Have crashed Java, Puzzle pirates, Firefox etc.)

Something else made the computer unable to right click icons, if I did Explorer would crash and needed a restart through Task manager to stop the freeze.

I ran a virus scan with Avast and found over 2000 malwares/trojans - Removed and put in chest
Used Spybot Search and Destroy and found 50+ more things that i deleted.
Ran Adaware aswell and removed more programs.

Ran avast again and found 150 more programs so something is spreading and Avast can't find it.

It seems to infect the HKEY's aswell but I don't know any good programs to clean them out without having to purchase it. One free one said it had over 100 damaged HKEY's and 2 of them said Hijacker "disable firewallnotify/antivirusnotify"

I would simply just restore the whole computer but my friend don't have the disc...

Any clue how to fix this?


Thank you!

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#2 boopme

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Posted 24 January 2011 - 09:07 AM

I'm afraid I have very bad news.

Your system is seriously infected.

Win32/Ramnit.A / Win32/Ramnit.B 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).


Edited by quietman7, 24 January 2011 - 01:37 PM.

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#3 EmoKitty

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Posted 24 January 2011 - 11:06 AM

Thank you for your reply.

I guess it's time for a new computer then, since I can't fully restore it without a disc.

#4 boopme

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Posted 24 January 2011 - 11:09 AM

Ask in the forum that corresponds to your Operating System,sometimes there is a way.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#5 EmoKitty

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Posted 24 January 2011 - 11:41 AM

Ok I will try that :)




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