Question

Comuter appears to have been hacked and files encrypted. Asking me to pay to unencrypt them.

Asked by: DebbieFost

I restarted my computer today and when I looked on my desktop and my computer folders I had a readme.txt file that contained the following message:
Hello,    your   files   are   encrypted   with   RSA-4096   algorithm
(http://en.wikipedia.org/wiki/RSA).

You  will  need  at least few years to decrypt these files without our
software.  All  your  private  information  for  last  3  months  were
collected and sent to us.

To decrypt your files you need to buy our software. The price is $300.

To  buy  our software please contact us at: tristanniglam@gmail.com and provide us
your  personal code 1333554546. After successful purchase we will send
your  decrypting  tool,  and  your private information will be deleted
from our system.

If  you  will not contact us until 07/15/2007 your private information
will be shared and you will lost all your data.

                        Glamorous team

I CANT access any files on my computer now. HELPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Asked On
2007-07-10 at 19:38:05ID22687804
Tags

glamorous

,

files

,

team

,

encrypted

Topics

Miscellaneous Security

,

Encryption for Network Security

,

Networking Security Vulnerabilities

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Answers

 

by: SunBowPosted on 2007-07-10 at 20:05:01ID: 19459628

Is this a joke?
I thought that those perpetrating that trick were all disabled and locked up years ago.

> The price is $300.

If you worry too much the you should pay, having law enforcement as you chosen method of delivery.

>  I had a readme.txt file that contained the following message:
Hello,    your   files   are   encrypted

Do you believe everything that you read? Some of these are close to jokes, or pranks, actually doing little but acting a guise for a quick collect or prank.

Hmmm, in order to transmit all privat personal data, which you really won't have, they needed to hog a lot of network bandwidth. You would have noticed.

Likewise, to encrypt your drive they'd have had to tie your system up and you'd have been first complaing here about your drive.

My guess is that their exploit was done on the cheap and is easily undone by someone you may know who is more versed in computer tech.

We all should be now reminded of word we keep forgetting - "backup"

Reformat your hard drive, restore from backup and the perp is gone. However, that does not mean that they cannot return. What is it you did to enable their intrudion? How can you convince yourself that you will not let them repeat, or someone like them? They could not have done this without you.

> All  your  private  information  for  last  3  months  were
collected and sent to us.


yeah?
Like what?
My 500 lovers?
My 600 bank accounts?
My maiden name(s)?

That is a bit generic, if they collected everything, what would they do with it.

Treat like blackmailer who would never stop asking for payment.

Report them to authorites, who may already be collecting complaints.

>  CANT access any files on my computer now. HELPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Prove it.

 

by: SunBowPosted on 2007-07-10 at 20:08:33ID: 19459638

One possible, preferably using safe boot diskette
a) In task manager perform wipe
b) For start tasks perfom wipe,
c) More likely, at boot time, you may be able to get a go-back undo by selecting to boot ot the last known good configuration

(press <f8> when booting windoze)

Alternatively, boot the 'valid' CD install disk for OS, and proceed to clean state. If your system is illegal, ask god to help you

 

by: DebbieFostPosted on 2007-07-10 at 20:17:58ID: 19459669

Not sure what a safe boot diskette is or how to perform a wipe? Also, how do you proceed to clean state? Is that a format and wipe.

I copy all of my files to a second physical drive and those appear to be unaffected. Do you just recommend wiping the entire machine?

 

by: TolomirPosted on 2007-07-10 at 21:42:24ID: 19459916

I head about those "all your files are encrypted stuff" emails.

For $300 you even buy support from them, really...

---

Ok placing a readme on your computer means "someone" was there and did something to your computer.

So there might be malware on your computer, that has to be removed.

Ok apart from that you have to save all your data, as you suggests to a second harddisk. I suggest you take that disk into another computer and copy all files to a safe place. I would not try any further boot attempts.

Then you have to check if there are really files encrypted. If yes you have to value their content and decide. Pay or not pay. Of couse you still should inform the police. But I doubt they can arrest a guy anywhere in the world without strong proof, and even then...

Keep us updated.

To check your computer I suggest you try www.superantispyware.com the free version can scan and clean your computer from malware.

Tolomir

 

by: TolomirPosted on 2007-07-10 at 21:49:29ID: 19459932

Ok this look promissing:

http://www.o2security.com/security.php?show_class_sn=2&which_page=%203

Detection and decryption routines have been added to the Kaspersky Anti-Virus databases. If your files remain encrypted after running a full scan of your computer with updated antivirus databases, please send your files to the Virus Lab at newvirus@kaspersky.com.

Seems like your have a virus on your computer, possibly not that mentioned here, but still there might be a chance to get your files back.

Tolomir

 

by: TolomirPosted on 2007-07-10 at 21:51:22ID: 19459937

http://www.viruslist.com/en/viruses/encyclopedia?virusid=118344

Removal instructions

   1. Update your antivirus databases and perform a full scan of the computer (download a trial version of Kaspersky Anti-Virus).
   2. If your files remain encrypted after scanning with Kaspersky Anti-Virus, please send a sample file to our Virus Lab (newvirus@kaspersky.com).

 

by: r-kPosted on 2007-07-10 at 21:52:52ID: 19459946

"I copy all of my files to a second physical drive and those appear to be unaffected"

That is excellent. Since you seem have a good backup, you can just go ahead and reinstall Windows from the original XP install CD. You can delete and recreate the partition at the early stage of the install, which will get rid of any malware as well. But make sure you have a good backup first, because the reinstall will wipe out your hard drive. You will also need to reinstall all programs, and your own data files and documents.

 

by: DebbieFostPosted on 2007-07-11 at 09:06:03ID: 19463969

I'll give the Kaspersky virus program a chance to see if it works tonight. I'm probably going to just wipe the machine since it has been compromised and I have no way of knowing if this person/virus can access my machine again. I just want to be able to recover a few files that are new or changed since the last time I backed up.

What I am really worried about is if they were able to get any files off of my machine? I didn't have many, but did have a few sensitive files. How much do you think that this just a scam to try and make a quick buck as opposed to really what they say it is?

 

by: TolomirPosted on 2007-07-11 at 10:01:31ID: 19464477

Well sure thing, all it takes is e.g. a remote ftp server to upload some files.

Anything less 1 MB might be interesting.

Don't panic I just want to point out that file uploads is no big deal. Btw. how fast is your Internet connection? This might give you/us some ideas if / how much might be uploaded...

 

by: r-kPosted on 2007-07-11 at 10:11:30ID: 19464582

As Tolomir said, it is nearly impossible to know what might have been transferred. As a guess, without knowing anything about the details, I would think that these are random attempts at getting people to pay up, and follow up action is unlikely. You should consider reporting this to local law enforcement, don't erase the affected disk in that case.

Here are a couple of related links:

 http://www.techworld.com/security/news/index.cfm?NewsID=3726
 http://www.physicsforums.com/showthread.php?t=76991
 http://www.cbsnews.com/stories/2005/05/24/tech/main697483.shtml

 

by: DebbieFostPosted on 2007-07-11 at 19:00:20ID: 19468191

I have a very fast IC. Brighthouse just upped us to 2 Mbps upload a few weeks back. I average around 1.9 mpbs. My PC is always on too so someone could uploaded tons during the day when I was at work and I'da never noticed. I can't think of any questionable website I went to so I believe this virus was downloaded via limewire. In that case I don't plan to notify the authorities because I dont want to get in trouble for the "questionable" file sharing I was doing when I got the virus. I need my PC back to normal anyhow so I'm going to wipe it if I can't get this virus scan to work.

 

by: DebbieFostPosted on 2007-07-11 at 21:19:16ID: 19468750

Well the virus scan was a waste. Didn't do any good. I guess its time to wipe it! I prefer it anyhow, I don't want any possible holes still on the machine able to let this perp back into my pc.

Thank you everyone for you input!

 

by: r-kPosted on 2007-07-11 at 21:25:22ID: 19468811

Sorry to hear that. Yes Limewire is the probable culprit here. In some discussions of this problem (see first link I posted above e.g.) there is mention that the encryption might be "simple". Not sure if that is the case here, but if your files are/were  important enough you may want to save an image of the disk for possible later recovery. Otherwise a reformat and reinstall plus a better backup plan for the future seems to be the way to go. Good luck.

 

by: dwoods6Posted on 2007-07-13 at 16:11:20ID: 19485037

Any easy way to fix the pc and restore the files? I'm not very computer literate so Im looking for help out of this situation. Mainly I have a lot of family photos that I really want to recover.

 

by: r-kPosted on 2007-07-13 at 16:15:42ID: 19485049

dwoods6:

Are you posting because you have the same problem? I would suggest starting a new question. This one will be locked soon, and in any case new people will not be reading this any more. Be sure to provide as many details as possible.

 

by: dwoods6Posted on 2007-07-13 at 16:42:03ID: 19485140

Yes it's the exact same problem. Same exact text file delivered on my desk top, same files encrypted as the original poster. Should I still create a new thread?

 

by: r-kPosted on 2007-07-13 at 17:14:08ID: 19485230

Yes, because I don't have an easy answer, and if you post a new question you will likely get new people providing a possible solution. Be sure to provide as many details as are relevant.

 

by: HypercubeTechPosted on 2007-07-17 at 14:43:59ID: 19509199

There is already a fix to this trojan..
Just run this http://www.prevxresearch.com/unransomme.exe

People....  stop trying to answer posts if you don't know how to fix it. Trying to decrypt these files manually or whatever these posts say is ridiculous. Just fix the problem, if you don't know how, don't try to answer the question.

 

by: r-kPosted on 2007-07-17 at 15:44:08ID: 19509699

Interesting. Hope DebbieFost saved the original disk. It may be worth trying this. It seems legit. See http://www.prevx.com/blog.asp for a description and the download link.

Here is a link with a better description:

 http://www.prevxresearch.com/ntos.pdf

Would be good to know if it works in this case.

 

by: TolomirPosted on 2007-07-17 at 22:02:00ID: 19511145

Thank you HypercubeTechfor (r-k) that link.

@ DebbieFost: Please change all (important) passwords for your online accounts, these were compromised - left alone your personal files.

· Encrypts data on hard disk to blackmail,
· Steal browser session user credentials,   <---
· Open backdoor and socks server.

Tolomir

20120131-EE-VQP-002

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