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mbr.sys - File not found!!


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#1 PanickedPatty

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Posted 05 July 2011 - 11:24 AM

Hi,

I am getting weird entries into ZoneAlarm so I did some reading here and followed some scanning instructions.

GMER did a long scan and showed "Admin/AppData/Local/Temp/mbr.sys -- System cannot find this file"

I used UNHIDE for all the drives and after that I downloaded COMBOFIX and saved it with a new name to the Desktop. I ran it and after a few seconds it announced a newer version was available and did I want to download it. I just got it from the Combofix website, so how can that be? I clicked "no" and a few seconds after that Windows Defender appeared in the System Tray (Notification Area). I do NOT have Defender operational and when I run it from the Start Menu, it shows it as "OFF."

Is this something I should be worried about?

I think I may need some help here.

Thanks

PP

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#2 Broni

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Posted 05 July 2011 - 04:45 PM

Welcome aboard Posted Image

If you ran Combofix (which you actually shouldn't be running on your own) before GMER, that's, most likely, Combofix file.

What's your computer problems.

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#3 PanickedPatty

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Posted 06 July 2011 - 06:51 PM

If you ran Combofix (which you actually shouldn't be running on your own) before GMER, that's, most likely, Combofix file.

What's your computer problems.


Hi Broni,

Thanks for the reply, I had actually run GMer earlier.

The problem I am having is that in ZoneAlarm there are three program entries that when I remove them they are back the next time I check in ZoneAlarm. The computer has no symptoms, but the magically reappearing entries concern me.

These entries show the icons from two backup programs (one older and one newer) I wrote. The old one has not been run for a year or more since writing the new one, but the icon still appears in ZoneAlarm.

Posted Image

All three entries in ZA display almost identical stuff and the Path shown is for each of the three copies of my software. Copy-One is the old version, copy-Two is the development copy and copy-Three is the running version I have in a separate folder to the development one.

That pic shows the newer development version. It is the "QuBES Quality-Based Execution System" that I know nothing about. Also my backslap program does not yet have a version number assigned in the Project header as it is still under development, but all three entries show the same version number which does NOT even match the old backup. The Dates are correct, but the file sizes are wrong. All three files sizes for these ZA entries are within 10K of each other but my programs are nowhere near those sizes. The old program is 1360K and the new one 1596K.

I have run a full scan using a rough and dirty sector by sector scan program I wrote to check for "QuBES Quality-Based Execution System" or fragments of it but found nothing. It is probably encrypted within the errant file, if there is an errant file or files.

Search & Destroy fond nothing nor did MBAM. I installed SuperAntiSpyware and it found Rogue.Agent/Gen-Nullo which I had it remove and 3 other false-positives. I removed SAS and installed Security essentials and it found win32/Yabector.gen and removed that. Still the entries appear in ZA.

I have now removed ZA and installed Comodo to see what happens next. So far no weird entries in Comodo but it's default trapping parameters are a little generous but I am tweaking.

{edit}
Neither of my two backup programs access the Internet and neither of them are used across the local network so there should be no entries in ZA for them.
{/edit}

Edited by PanickedPatty, 06 July 2011 - 07:24 PM.


#4 Broni

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Posted 06 July 2011 - 07:57 PM

Well, it's hard for me to comment regarding your backup programs since I'm not a programmer, but generally speaking, if the computer is working fine I wouldn't lose too much sleep over those entries.

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#5 PanickedPatty

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Posted 07 July 2011 - 10:05 AM

but generally speaking, if the computer is working fine I wouldn't lose too much sleep over those entries.


Hmmm, that's a curious attitude. BECAUSE it shows no symptoms is the very reason it needs to be found. Who knows what it is sending in or out.

Three programs (or variants of the one program) are automatically placing themselves within ZoneAlarm. When removed they are back within 3 minutes. That in itself is worrying. If they can get on to the ZA program list without notice, it would not then be too much to imagine it could pass-through ZA protection. I only recall one occasion where permission was asked by QuBES where it wanted access to another computer IP address on the network. I clicked "Remember" and "Deny" but when I checked ZA it was still set at "Question," so it had obviously reset the permanent Deny.

If the "QuBES" thing was some text that I had on the computer I may be a little less concerned. This is almost certainly a Worm or a Trojan and you say "don't lose sleep?" You obviously like working on the easy ones. :D

I do not go to sites where it may be common to get such infections, but it appears that I have something here. ZoneAlarm and/or Vista are not likely to be doing this on their own. There is something at work and if my PC has the infection, I can guarantee others will have it too as it must be coming from a fairly common site. I use FireFox with NoScript and it must be a pretty sophisticated program to get through to my PC AND be able to log itself silently to ZA.

I am not losing sleep, but I am very concerned. Wasn't TDSS non-obvious most of the time?

PP

#6 Broni

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Posted 07 July 2011 - 07:54 PM

We can surely run some checks...

Download Security Check from HERE, and save it to your Desktop.

* Double-click SecurityCheck.exe
* Follow the onscreen instructions inside of the black box.
* A Notepad document should open automatically called checkup.txt; please post the contents of that document.

=============================================================================

Please download MiniToolBox and run it.

Checkmark following boxes:
  • Report IE Proxy Settings
  • List content of Hosts
  • List IP configuration
  • List last 10 Event Viewer log
  • List Users, Partitions and Memory size
Click Go and post the result.

=============================================================================

Download Malwarebytes' Anti-Malware (aka MBAM): https://www.bleepingcomputer.com/download/malwarebytes-anti-malware/ to your desktop.

* Double-click mbam-setup.exe and follow the prompts to install the program.
* At the end, be sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select Perform quick scan, then click Scan.
* When the scan is complete, click OK, then Show Results to view the results.
* Be sure that everything is checked, and click Remove Selected.
* When completed, a log will open in Notepad.
* Post the log back here.

Be sure to restart the computer.

The log can also be found here:
C:\Documents and Settings\Username\Application Data\Malwarebytes\Malwarebytes' Anti-Malware\Logs\log-date.txt
Or at C:\Program Files\Malwarebytes' Anti-Malware\Logs\log-date.txt

=============================================================================

Please download GMER from one of the following locations and save it to your desktop:
  • Main Mirror
    This version will download a randomly named file (Recommended)
  • Zipped Mirror
    This version will download a zip file you will need to extract first. If you use this mirror, please extract the zip file to your desktop.
  • Disconnect from the Internet and close all running programs.
  • Temporarily disable any real-time active protection so your security programs will not conflict with gmer's driver.
  • Double-click on the randomly named GMER file (i.e. n7gmo46c.exe) and allow the gmer.sys driver to load if asked.
  • Note: If you downloaded the zipped version, extract the file to its own folder such as C:\gmer and then double-click on gmer.exe.

    Posted Image
  • GMER will open to the Rootkit/Malware tab and perform an automatic quick scan when first run. (do not use the computer while the scan is in progress)
  • If you receive a WARNING!!! about rootkit activity and are asked to fully scan your system...click NO.
  • Now click the Scan button. If you see a rootkit warning window, click OK.
  • When the scan is finished, click the Save... button to save the scan results to your Desktop. Save the file as gmer.log.
  • Click the Copy button and paste the results into your next reply.
  • Exit GMER and be sure to re-enable your anti-virus, Firewall and any other security programs you had disabled.

IMPORTANT! If for some reason GMER refuses to run, try again.
If it still fails, try to UN-check "Devices" in right pane.
If still no joy, try to run it from Safe Mode.

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