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Smokey Bear
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4 edits

Worm bypasses Software like DeepFreeze?

Softpedia | 9th of June 2009

Security researchers from Bach Khoa Internetwork Security (Bkis) warn of a new worm that is able to bypass the protections enforced on the file system by software such as Deep Freeze. The malware was discovered in early March and has already made thousands of victims in Asia.

Deep Freeze is an application developed by Faronics to help administrators restore computers to a secure state after being used by untrusted parties. Such software is very popular in environments with many casual users such as cybercafés, libraries, or computer labs in schools.

"The software can monitor any change in sectors (data storage area) in hard disk partitions and save the changes in another area (buffer). When normal programs retrieve these sectors, they will reach the data in the buffer rather than in the original sectors," Vu Ngoc Son, senior malware researcher at Vietnam-based Bkis, explains.

This allows administrators to easily restore the computer to the previous state by simply rebooting the machine. Mr. Vu Ngoc Son believes that, because of this, the computer administrator can get a false sense of security, which is particularly reflected by this latest threat.
Source: »news.softpedia.com/news/New-Chin···77.shtml

See also: hxxp://blog.bkis.com/?p=707

Edit 2009-06-11: topic subject altered for reason of actual received information
Edit 2009-06-12: topic subject altered temporary 'till full clarification of topic issue
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HailTheLUA

@dhcp.inet.fi

Re: New worm bypasses System Rollback Software like DeepFreeze

quote:
In order to bypass the Deep Freeze restrictions at the operating system level, W32.SafeSys.Worm "employs a technique that enables it to write data directly on hard disk’s sectors by sending request for direct interaction with disk Controller."
Sounds to me like that requires admin privs to succeed, but I've been wrong before.

Still, giving admin rights to people using some internet cafe computer or similar is just plain crazy, Deep Freeze or no. Interesting to see malware like this in the wild though.


so what stops it

@Level3.net

reply to Smokey Bear
So what stops the worm then? Will the popular AVs detect it? How 'bout programs like Prevx or Threatfire? Anything else? HIPS maybe?



Blue2
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reply to Smokey Bear
Faronics states:

"Once Deep Freeze is installed on a workstation, any changes made to the computer—regardless of whether they are accidental or malicious—are never permanent. Deep Freeze provides immediate immunity from many of the problems that plague computers today—inevitable configuration drift, accidental system misconfiguration, malicious software activity, and incidental system degradation.

Deep Freeze ensures computers are absolutely bulletproof, even when users have full access to system software and settings. (emphasis added) »www.faronics.com/html/deepfreeze.asp

So it would be nice if the press contacted Faronics to get their response to Bkis. Does this suggest that all software of this type is vulnerable by design (Sandboxie, etc.) and it's only a matter of time before they can be bypassed and therefore of little value?



Grimm43
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reply to Smokey Bear
I just spoke to Faronics by phone and they assured me that this article is bogus and that NO cases have been reported in the wild.

They knew about the worm claiming to breach Deep Freezes security and informed me that it is NOT an issue.

I suggested they respond to this thread and I hope they do so this can all be straightened out.

Grimm
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Sir Meowmix III

@windstream.net

reply to Smokey Bear
Seems to reek of FUD + profit, from the »blog.bkis.com/?p=707 website (emphasis added):

quote:
A number of Internet shops which put too much trust in DeepFreeze and not employ any other protection method have become W32.SafeSys.Worm’s victims. According to Bkis’ statistics, as many as 46.000 computers in Vietnam have been infected with this virus.

If your Internet shop experiences the same problem involving this virus, you should update the latest Bkav version at here to deal with the problem.

Little actual information, broad "access the Controller" (note the capitalization) assertions, number of infections computed by them and only a local demographic, and the solution is to install their software.


Smokey Bear
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reply to Grimm43

said by Grimm43:

I just spoke to Faronics by phone and they assured me that this article is bogus and that NO cases have been reported in the wild.

I suggested they respond to this thread and I hope they do so this can all be straightened out.
Let's wait on an official Faronics reaction.
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Grimm43
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said by Smokey Bear:

said by Grimm43:

I just spoke to Faronics by phone and they assured me that this article is bogus and that NO cases have been reported in the wild.

I suggested they respond to this thread and I hope they do so this can all be straightened out.
Let's wait on an official Faronics reaction.
I was just called back by Faronics and told that as to date no reports of compromised computers have come from Vietnam or any other country.

I agree that a statement from Faronics is the best way to settle this.

I realize just my word is not likely enough for some readers.
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Smokey Bear
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Please see my IM.



Grimm43
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said by Smokey Bear:

Please see my IM.
Just got it....

Thanks smokey Bear.


Blue2
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1 edit

reply to Smokey Bear

Re: [FUDGE] Worm bypasses Software like DeepFreeze

I'm always suspicious when some company I've never heard of makes some spectacular claim without providing specifics. Particularly when they get media attention for doing it.

If the media who reported this was really doing their job, they would NEVER have printed an assertion about any company or product, without first contacting the company and asking for their response. That's just journalism 101.


Smokey Bear
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reply to Smokey Bear
Actual information, just offered me privately by acknowledged AV-Experts, forced me to alter topic subject.

ATM it is clear that the source of the article I quoted from, Softpedia, have produced a fudge article regarding Bach Khoa Internetwork Security (Bkis) and System Rollback Software DeepFreeze.

1- Bach Khoa Internetwork Security (Bkis) is directly involved in the distribution of a rogue AV, threat name is FraudTool.Win32.BachKhoa.av »www.sunbeltsecurity.com/threatdi···B3F8BBA4

2- NO cases of the mentioned worm have been reported in the wild.

3- I will ask Softpedia for an explanation.

I am waiting on confirmation of the vendor of DeepFreeze, Faronics, ATM I receive their confirmation I will make her a statement on behalf of them.

Regards,

Smokey Bear
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JohnInSJ
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reply to Smokey Bear
You know, you could not make this stuff up if you tried.

Thanks Smokey. Yet another non-event. At least they didn't say 'using magic pixie dust' or some such BS.

I'll tell you one thing, all this crap is making Apple some money. Hey, wait a second... maybe the haxxor is that apple dude?
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Smokey Bear
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said by JohnInSJ:

Thanks Smokey. Yet another non-event. At least they didn't say 'using magic pixie dust' or some such BS.
Just discovered that PCWorld produced the same BS regarding a "worm" and an alert again provided by "Security researchers" from Bach Khoa Internetwork Security (Bkis), the very same name mentioned in the Softpedia article regarding DeepFreeze: »www.pcworld.com/businesscenter/a···nts.html

PCW article date: April 24, 2009

I have emailed PCW a link to this DSLR post.
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Grimm43
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1 edit

reply to JohnInSJ
Self Moderated to remove picture of Dell Dude.


mysec
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1 edit

reply to Smokey Bear
Thanks, Smokey.

1- Bach Khoa Internetwork Security (Bkis) is directly involved in the distribution of a rogue AV, threat name is FraudTool.Win32.BachKhoa.av

I wonder if that is the same product mentioned in the BKIS blog, and also being pushed here:

»tips-reviews-how-to.blogspot.com/
System Restore Worm Poses New Threat

The worm is called W32.SafeSys.Worm and attacks a particular program called Deep Freeze.

There are over 140 variants of the W32.SafeSys.Worm thus far.

The best protection at this point is to Download the latest BKAV.

»www.bkav.com.vn/home/DownloadE.aspx
© Ghi rõ nguồn 'Trung tâm An ninh mạng Bkis




From a Wilders thread, Dec/2008

Re: BKAV anti-virus from VietNam
»www.wilderssecurity.com/showthre···t=226833
said by Stefan Kurtzhals :

Did some very quick tests, which showed catastrophic detection capabilities, even on very old malware from the ITW list. No way there are 300 people working on this - or they are playing Tetris all day.


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Smokey Bear
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reply to Smokey Bear
Follow up: I received an email from the writer of the Softpedia article. Till I have checked all mentioned facts in it I will not react in public. Parts of the Softpedia email have private character and will remain private.

Regrettably till yet I didn't received the promised Faronics email confirmation and POV. Such is an absolute must to come to a well-matured opinion regarding the issue and what Softpedia wrote. ATM Faronics lack of (promised) response is not helpful for clarification.
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Smokey Bear
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reply to Smokey Bear
Follow up: Faronics have contacted me.

Official Statement on behalf of Faronics Corporation

11th of June 2009

Faronics is aware of the report that a worm called "W32.SafeSys.Worm" is able to "bypass" Deep Freeze and other competing products. However, we have not been able to confirm the accuracy of the report and at this time have been unable to reproduce these results in our lab. We will continue to investigate the issue. As always, we continue to recommend that customers use an antivirus product in combination with Deep Freeze. Please refer to the White Papers section of the Faronics Content Library for information regarding how to use Deep Freeze with many popular antivirus products.

Brent Smithurst
Vice President, Technical Operations
Faronics Corporation
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Vampirefo
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1 edit

It may not be fud, I remember a few years ago, one could get around Deep freeze. eg disable Deep Freeze.

The only way to know for sure is to get the worm and test it against Deep Freeze.

This is just one example »www.ethicalhacker.net/component/···c,658.0/ I am sure you could find more via google.
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Grimm43
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reply to Smokey Bear

said by Smokey Bear:

Follow up: Faronics have contacted me.

Official Statement on behalf of Faronics Corporation

11th of June 2009

Faronics is aware of the report that a worm called "W32.SafeSys.Worm" is able to "bypass" Deep Freeze and other competing products. However, we have not been able to confirm the accuracy of the report and at this time have been unable to reproduce these results in our lab. We will continue to investigate the issue. As always, we continue to recommend that customers use an antivirus product in combination with Deep Freeze. Please refer to the White Papers section of the Faronics Content Library for information regarding how to use Deep Freeze with many popular antivirus products.

Brent Smithurst
Vice President, Technical Operations
Faronics Corporation
This is a much more diplomatic response than I got but I am glad they emailed you as I asked.

So I guess we wait and see, I mean with over 100 variants they should be able to find a sample to test with.

I did a search myself and could find no mention of it that did not directly or indirectly come from Bkav.
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