Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

was it clean?


  • Please log in to reply
3 replies to this topic

#1 JEBwebs

JEBwebs

  • Members
  • 65 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:06:28 PM

Posted 09 June 2011 - 03:47 PM

Right off, could not find what looked like an appropriate place for this posting , so here is were it's landing, where it ends up will up to the moderators.

Am posting this up due to the startling results or running Standalone System Sweeper on a system cleaned with the help of BC about a two (2) months ago.

At the end of the process was deemed to be clean and all involved were content with the results.

Since cleaning the laptop has been sitting in its bag and has not been actively used in any way shape or form.

Yesterday Microsoft's Standalone System Sweeper was acquired as ISO, burned to disk and run it on the system. It detected Adware , Virus and Trojan. Nine (9) items in all, seven (7) marked Severe/High, two (2) marked Medium/Low.

Those marked Severe/High detected were: TrojanDropper:Win32/VB, Virus:VBS/LoveLetter.DL (dectected five (5) instances), trojanDownloader:Win32/Zlob.gen!dll

The two (2) indicated as Medium/Low are: Adware:Win32/WhenU.A, Adware:Win32/WhenU.gen

The set of options allowed are: Disinfect, Quarantine, Remove or Allow.

All nine items detected are located in the same location, "System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\" in matched pairs of files. The first one listed is these files:

containerfile / file
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005334.exe & A0005334.exe->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005335.exe & A0005335.exe->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005336.exe & A0005336.exe->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005337.dll & A0005337.dll->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005338.exe & A0005338.exe->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005339.exe & A0005339.exe->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005340.exe & A0005340.exe->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005341.vbs & A0005341.vbs->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005343.vbs & A0005343.vbs->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005344.exe & A0005344.exe->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005345.vbs & A0005345.vbs->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005346.dll & A0005346.dll->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005347.vbs & A0005347.vbs->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005348.exe & A0005348.exe->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005349.exe & A0005349.exe->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005350.dll & A0005350.dll->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005351.dll & A0005351.dll->(CryptFF)
System Volume Information\_restore{2ff74256-477d-4b01-939a-d41c1bbfe2c6}RP11\A0005352.exe & A0005352.exe->(CryptFF)

Ancillary to this the only processes run on the system prior to running the Standalone System Sweeper were updates to SuperAnti-Spyware, Malwarebytes and Windows Update. On bootup Yahoo Messenger is started.

What bothers me the most about this is the fact the System Restore was turned completely off and turned on only after the system had been cleaned. During the process of turning 'Restore' off, a message was displayed stating all restore points would be deleted. If the system was clean, and the restore points were actually removed from the system.

At this point I'm not going to attempt correcting the problems detected, instead, I'm going to run the System Sweeper again and see if alternate results are found and, of course, see if any interest is sparked over this matter. If I do not add additional results to this posting, then the scan resulted in the same detections.

Edited by hamluis, 09 June 2011 - 04:06 PM.
Moved to AII from XP.

JEBwebs

Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. Winston Churchill

BC AdBot (Login to Remove)

 


#2 Nerdful Things

Nerdful Things

  • Members
  • 38 posts
  • OFFLINE
  •  
  • Location:Portland Maine, USA, Earth, Sol
  • Local time:07:28 PM

Posted 09 June 2011 - 06:37 PM

Hello,

I wanted to see what BC thought of Microsoft's liveced, systemsweeper iso, and came across your post of a couple hours old.


My main concern is: Can scareware be removed with this, and BC help and the owner completely trust his computer again?

My thoughts in the past were wiping, reformatting and re-installing. This obviously makes it a huge effort to get back to one's original programs and settings.

It would be nice to know for example, in my case today if the steps taken to remove the E-set malware/scareware is sufficient, as it is something known about, unlike a rootkit or something.


Not hijacking your thread, just chiming in while waiting for the livecd to run on a box obviously infected with e-set scareware.

After starting the disk, I came here to research, and compare notes.

Thanks

#3 boopme

boopme

    To Insanity and Beyond


  • Global Moderator
  • 73,190 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:NJ USA
  • Local time:07:28 PM

Posted 09 June 2011 - 07:24 PM

What we have are files left in the System Restore folder ( System Volume Information\_restore)and can be removed.

Now you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok". Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" tab, then click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Vista Users can refer to these links: Create a New Restore Point and Disk Cleanup.

Tips to protect yourself against malware and reduce the potential for re-infection:Avoid gaming sites, pirated software, cracking tools, keygens, and peer-to-peer (P2P) file sharing programs. They are a security risk which can make your computer susceptible to a smörgåsbord of malware infections, remote attacks, exposure of personal information, and identity theft. Many malicious worms and Trojans spread across P2P file sharing networks, gaming and underground sites. Users visiting such pages may see innocuous-looking banner ads containing code which can trigger pop-up ads and malicious Flash ads that install viruses, Trojans and spyware. Ads are a target for hackers because they offer a stealthy way to distribute malware to a wide range of Internet users. The best way to reduce the risk of infection is to avoid these types of web sites and not use any P2P applications. Read P2P Software User Advisories and Risks of File-Sharing Technology.

Keeping Autorun enabled on USB and other removable drives has become a significant security risk due to the increasing number of malware variants that can infect them and transfer the infection to your computer. To learn more about this risk, please read:
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

#4 JEBwebs

JEBwebs
  • Topic Starter

  • Members
  • 65 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:06:28 PM

Posted 10 June 2011 - 08:45 AM

Sorry for not being more specific, but the matter of my concern in this is the restore points are not completely removed when disabled. What I suspect is the points are not truly removed when the System Restore is disabled and the system rebooted. Not the first time Microsoft has said one thing and done another.

Additionally, the reason for bringing it here was to see if anyone would be interested in any of the trace records present on the 'mysteriously reinfected' laptop at this time.

To be more concise, what we have is: A system that was cleaned of infections several weeks ago, sat un-used and on the shelf since then now indicating new and different infection traces. Infections not encountered during the original cleaning process.
JEBwebs

Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. Winston Churchill




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users