Cryptolocker: new malware encrypts your files, demands ransom within 96 hours

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I've just uploaded a sample of this malware to Virustotal (it scans the file with a bunch of different AV engines and tells you if they detect the file). The results are here:

https://www.virustotal.com/en/file/...0a3c34fc2008e210ccfe6dae/analysis/1382805599/

Pretty much every AV, provided you have the latest updates, will detect it.
Thanks for this. My parents run AVG, so it looks like they are ok for the time being.

BTW, if they are total noobs and need to be walled away from the horrors of the internet, what would you recommend I install on their system?
 
So in regards to using an external HDD for backing up larger amounts of data automatically, is there any good free options aside from Crashplan. I did check them out but they appear to only offer a free trial.

mega.co.nz is really good. Its free and provides 50gbs.
 
I work at a computer shop, and we see the FBI/ICE virus on a daily basis. It's easy enough to remove, but I fucking dread the day when we start seeing stuff like this
 
I've just uploaded a sample of this malware to Virustotal (it scans the file with a bunch of different AV engines and tells you if they detect the file). The results are here:

https://www.virustotal.com/en/file/...0a3c34fc2008e210ccfe6dae/analysis/1382805599/

Pretty much every AV, provided you have the latest updates, will detect it.

I dont understand how that works since http://labs.bitdefender.com/2013/10/cryptolocker-ransomware-makes-a-bitcoin-wallet-per-victim/ states that bitdefender users are protected.
 
I'll go ahead and recommend the same piece of software that I always do in these types of threads:

Sandboxie

Spend just 5-10 minutes learning the basics of this program, and you'll never* have to worry about any sort of malware again. It's so secure that you could even download a sample of this ransomware and run it for fun. It's not going to be able to do much.

*99% secure. Nothing is 100% when it comes to PC security

Thanks, was super easy to setup. I'm tinkering with it now.
 
Seriously? What protection services did you guys have running in your PC or server's? Any firewall/antivirus applications? Hopefully you have a backup system running.

We have backups running, but not cloud. We just need to hope that the backups dont run daily(i didnt set them up), otherwise we're screwed. We contracted it yesterday, but it was our main info server. We have other servers, not infected since the potential user who got it, only had write access to the one server.
 
Thanks for this. My parents run AVG, so it looks like they are ok for the time being.

BTW, if they are total noobs and need to be walled away from the horrors of the internet, what would you recommend I install on their system?

Just walling off their browser would solve most problems, which is what Sandboxie would do. Or, if you want an all in one system (firewall + AV + light sandboxing) that can monitor the entire system, then Comodo Internet Security (the free version) will do the job.

Personally, I prefer Sandboxie since it's more configurable, and you can configure it for rock solid protection (you can do the same with Comodo, but it still wont be quite as secure). But for a more set and forget approach, that will still give you very good security, then I'd recommend Comodo.
 
Just walling off their browser would solve most problems, which is what Sandboxie would do. Or, if you want an all in one system (firewall + AV + light sandboxing) that can monitor the entire system, then Comodo Internet Security (the free version) will do the job.

Personally, I prefer Sandboxie since it's more configurable, and you can configure it for rock solid protection. But for a more set and forget approach, that will still give you very good security, then I'd recommend Comodo.
thanks, I'll bookmark this post for later.
 
whats amazing is that someone never thought to make a virus like this before. carefully what you download gaf. you dont want this shit.
 
..or to pay for it. Might be the better choice in some cases. These guys were really smart in their "pricing", so almost every affected could afford it if they really wanted to.

Well, that isn't 100% and on top of that my users would try to get the company to reimburse for it.

And aside that, just no. The authors are devious and should be arrested, not awarded.
 
Yeah, I've just checked again and Virustotal haven't updated their Bitdefender database since 2009/02/18. I guess their license ran out and they haven't bothered to renew it. Everything else is up to date though (apart from Kingsoft).

O yes, I see, thank you.
 
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Saved. On-topic, this had me all paranoid last night lol.
 
whats amazing is that someone never thought to make a virus like this before. carefully what you download gaf. you dont want this shit.

This concept has been around for years.

Although, I am surprised it took this long for it to hit significant distribution of a version of the idea.
 
This is truly supervillian-grade stuff. I was actually in awe for a few minutes before the horror settled in.

I also host a shared dropbox folder with my grad class of 25. If one of them were to get this on their system, could it then spread to everyone else that syncs up with that particular folder?

There's a bunch of similar posts to this so let me make something clear:

Malware such as this doesn't "spread" or "infect" other computers like that. It's a program that does the damage when it's run for the first time. The only way for it to do any damage is to actually run the EXE or having it be executed through some code execution attack vector (like the Java browser plugin). It's very rare to have a virus that can actually spread like that nowadays.

However, it can encrypt files in shared network drives and automatically-synced cloud storage folders like Dropbox. The encrypted files will "spread" but all they do is become unreadable: they won't cause any harm to other PCs. If you have versioning enabled in Dropbox, it should be possible to revert back to unencrypted versions of the files.

Tips to avoid infections of any kind on Windows PCs:

1) Be wary of any program you download and install on your PC. The vast majority of installers require elevated privileges and thus they can do whatever they want to your machine. Avoid "shareware" and "freeware": if you want/need to go free, look for an open-source solution first. Just because it's on the top of your Google search results or CNET downloads it doesn't mean it's safe.

2) If you need to run a program you don't trust, use a sandboxing solution like Comodo Internet Security and Sandboxie. This will prevent the program from making any permanent changes to your PC. You can also use either of those programs to sandbox your browser, effectively preventing any zero-day exploits from harming your computer.

3) Don't use Java. If you have to use Java, uninstall/disable the browser plugin. If you have to use the plugin, use Firefox, which keeps the Java plugin disabled by default so you can enable it only on the website that needs it. Do *not* allow the Java plugin to execute on a website unless it's absolutely necessary, like your bank's website. Actually, avoid accessing your bank website on a normal browser if possible: use a tablet, phone, a virtual machine, etc.

4) Avoid opening e-mail attachments you weren't actively expecting to receive, even if they come from people you know. You can never know if someone's e-mail account has been hijacked or spoofed. If you need to open the attachment, prefer loading it into Google Drive and viewing it there (if you're using gmail, you can do it without ever downloading the files into your PC). Google Drive will twarth any attempts at disguising EXE files as documents and script-ridden Word/PowerPoint/Excel files.
 
Thank you - added to OP.
Previous post says that an old version of Bitdefender detects it so I'm not sure I would take Virustotal is 100 percent accurate.

Besides, wasn't it said somewhere else in this thread that although MSE will detect it, by the time it does it's too late?
 
Previous post says that an old version of Bitdefender detects it so I'm not sure I would take Virustotal is 100 percent accurate.

That was explained here:

Yeah, I've just checked again and Virustotal haven't updated their Bitdefender database since 2009/02/18. I guess their license ran out and they haven't bothered to renew it. Everything else is up to date though (apart from Kingsoft).

The updated version of Bitdefender will catch it just fine, the version VT was using was ridiculously out of date, so no wonder it didn't detect it. As long as Virustotal are using updates from today (which they are on all but two of the AVs) then there's no reason to doubt it.
 
The updated version of Bitdefender will catch it just fine, the version VT was using was ridiculously out of date, so no wonder it didn't detect it. As long as Virustotal are using updates from today (which they are on all but two of the AVs) then there's no reason to doubt it.
I hope MSE actively detects it now.
 
zDex.png


That's what happens as soon as I execute the file.

If I used the default settings then it wouldn't even let me execute it, since it detects it as soon as I extract the EXE from the ZIP file.
Okay that's good news. I'm using MSE (Windows 7) but my ignorance on such matters assumes WD on Windows 8 is the same thing. I rarely if ever open EXE files from a source I don't know anyhow but always better safe than sorry.
 
I had been thinking of upgrading to Malware Bytes Pro, because I liked the free trial when I reinstalled MWB Free awhile back. This made me pull the trigger.
 
I've already told all of the people I care enough about this. I pretty much said, "If you get infected by this, be prepared to pay to get your files back, or you can kiss your shit goodbye. "

As the most knowledgeable person in my family PC wise by 50 grand canyons plus 4 trips around the sun, I'll probably have the bullshit fortune of getting infected by this goddamn thing somehow. Luckily, I have anything I care about backed up on an external HDD. Oh and I didn't throw out my windows install disc + serial #, so my compu-body is ready.
I wouldn't recommend paying to get your files back. Just make sure you're protected and always keep backups of important files.
 
Have AVG Free + Malwarebytes Free.

Will a Malwarebytes Free scan catch it?

I wouldn't trust the free version of AVG. But that's for other reasons.

Okay that's good news. I'm using MSE (Windows 7) but my ignorance on such matters assumes WD on Windows 8 is the same thing. I rarely if ever open EXE files from a source I don't know anyhow but always better safe than sorry.

YES. MSE and WD are basically the same.

BTW:

AzFvK0h.jpg


People. Paranoia has never been useful, just use a good AV, couple with MB and do a scan. Just chill the fuck out.
 
I wouldn't trust the free version of AVG. But that's for other reasons.

BTW:

AzFvK0h.jpg


People. Paranoia has never been useful, just use a good AV, couple with MB and do a scan. Just chill the fuck out.

I think it's more the corporations/businesses with their dumb effing employees that're worried about it, on top of the wide scale ramifications of poorly built networks by businesses that don't truly understand the importance.

That's just my view on things, since the network(and any remotely important files) for my current employer is completely fucked by this virus. Like... mega-fucked.
 
Good thread to ask: I use a Synolgy diskstation in a 3tb RAID1 (only 50gb or so used so far, just got it recently). Any advice on cloud backups? How's crash plan? Anyone have any reviews or advice?
 
Just keep your antivirus and anti malware software up-to-date. Read up a little on it too if you want more info. Oh, and don't install more than one antivirus, if you didn't already know that.

Thanks! I may have to get a new AV since for whatever reason I can't update the one i"m currently using. The other day I tried, I think it installed some malware. orz

I wouldn't trust the free version of AVG. But that's for other reasons.

oh snap. that's the AV I have. haha :'D
 
Our work place encountered something similar to this a while ago. It was more of the fake FBI virus. Luckily all our info is kept online, so we didn't loose anything.
 
whats amazing is that someone never thought to make a virus like this before. carefully what you download gaf. you dont want this shit.

you have to be a special kind of piece of shit to do this to people.

would love to read a follow up article detailing how these assholes are thrown in prison.
 
Somebody needs to invent a drive you plug into your computer, and every month it mechanically connects itself to a USB port and starts a backup. Once finished, it mechanically separates itself from the port, and you can physically see the mechanism and physically lock it.

Automated airgap backup solution.
 
Seems to me Malwarebytes Pro is a pretty good deal. They are asking a very reasonable price, $24.95 and it's a lifetime license, not that yearly license crap. Not a bad investment to protect your files.
 
Seems to me Malwarebytes Pro is a pretty good deal. They are asking a very reasonable price, $24.95 and it's a lifetime license, not that yearly license crap. Not a bad investment to protect your files.

Oh, it's a lifetime licence? Good to know.
 
Seems to me Malwarebytes Pro is a pretty good deal. They are asking a very reasonable price, $24.95 and it's a lifetime license, not that yearly license crap. Not a bad investment to protect your files.

That or Sandboxie, which is also a lifetime license for the Pro version. Malwarebytes is probably enough for most people though.
 
I've just uploaded a sample of this malware to Virustotal (it scans the file with a bunch of different AV engines and tells you if they detect the file). The results are here:

https://www.virustotal.com/en/file/...0a3c34fc2008e210ccfe6dae/analysis/1382805599/

Pretty much every AV, provided you have the latest updates, will detect it.

Will detect it but stop? That's the question. The problem is apparently that even if the scanners detect it it may be too late because it's been running silently.

If they call catch it before that act, great.
 
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