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Recurring infection? -or- system problem??


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#1 TacomaSailor

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Posted 30 November 2010 - 02:53 AM

Infected System (Dedicated to FSX):
Vista 32 Home Premium SP2 – all MS automatic updates current
I5-750 / 4 GB / eVGA 8800 GTS / Five Hard Drives / CD/DVD RW
Only external connection is via Ethernet to Vista64 system that connects to web
Vista64 system runs Norton Internet Security 2010 with current definitions

My FSX dedicated system suddenly started suffering four very annoying problems:

1) Thread Creation / Thread Exit (almost any application) requires EXACTLY 30 seconds once every two minutes - i.e. a thread that is either created or deleted will take 30 seconds to return to the calling program - then for the next two minutes all other thread operations will respond normally - then after 120 seconds of normal (very quick) operation another (once only) thread creation or exit will require 30 seconds to complete. While the thread operation is waiting no IO and no CPU occurs for any thread associated with the mother process. The ONLY CPU or IO activity I see in the entire system during this long pause is due to Process Explorer or Process Monitor. However – IF I do start other processes during the pause – those processes run normally and quickly.

2) About half the time Firefox, Chrome, IE8, or IE9 URLs are redirected. When I boot the system the redirection may not occur for an hour or so and then starts up again.

3) At various times SAVE or SAVE AS goes 'non-responding'

4) Starting a Browser (any of them) sometimes results in a process (PE shows it using CPU and doing IO) but no displayable window. I must then cancel the Browser with ProcessExplorer

Event Monitor reports NO hardware problems

I ran (in the following order):

Windows Defender (current definitions)
MS Malicious Software Removal Tool (current definitions)
AFT Clean - reboot
Malwarebytes AntiMalware (MAM) (current definitions)
SuperAntiSpyware (SAS) (current definitions)

Only SAS found any problems (730) and then reported them removed. One threat was a Malware Trace and two were Security HiJack [Image File ExecuteOptions]. The rest of the threats were Adware in files – none were in memory nor in registry.

I rebooted, ran another scan and SAS reported no new infections.

All applications ran normally several hours. I flew a one-hour mission in FSX with 35+ fps and all sliders (except AI traffic) set to max – the system ran flawlessly the entire time

Then same problems as described above began again when I did some file operations e.g File Save or clicked on a folder to OPEN. I again ran SAS and it found 140 threats, which SAS removed. One threat was Security HiJack [Image File ExecuteOptions]. ALL other threats were in Adware in files – none were in memory nor in registry. I rebooted the system.

I ran the system for several hours and used most applications with no problem. I DID NOT connect to the WEB during any of that time. I put the system into a SLEEP state and returned two hours later. The first two file opens worked correctly and I then unzipped a file (scanned by Norton – the .zip had been on the system for over a year and I had unzipped it previously and installed that airplane into FSX) – that process ended with “not responding” and the problems then escalated as follows:

- SAVE or SAVE As or Unzip to any folder – window is shadowed and border says "not responding"

- Windows Task Manager replaces Process Explorer (I always have PE as the default TaskManager for ALT+CTRL)

- OPEN any file - "not responding" if I try to close window

- Thread Create / Thread Exit sometimes takes over 60 seconds during which time no other process or dll associated with the mother process gets a single CPU cycle

-Click on any desktop icon (start program or open file) - white screen for 30 seconds then returns to desktop -or- busy symbol for 30 seconds - Program never presents displayable window. NO CPU / Very little IO during that time - all by CPU done by Process=System

- Application (e.g. Hearts, WinWord, EXCEL) starts but there is no displayable window

MAM FULL SCAN reports NO Infections

SAS found 54 threats all Adware Tracking Code – all in Windows\System32\config\system profile\AppData\Roaming… MAM then removed all the threats – I rebooted and system ran OK for five minutes and problems began again – NO connection to outside world

Is this a virus / malware or a system problem?

Edited by TacomaSailor, 30 November 2010 - 02:54 AM.


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#2 boopme

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Posted 30 November 2010 - 04:53 PM

Hello and welcome// For your connection
Try this--open control, internet options, connections tab, lan settings, uncheck the box next to "use proxy...."
OR
Go to Start ... Run and type in cmd
A dos Window will appear.
Type in the dos window: netsh winsock reset
Click on the enter key.

Reboot your system to complete the process.


Please post the MBAM log. The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
Copy and paste the contents of that report in your next reply. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.


Please perform a scan with Eset Online Antiivirus Scanner.
This scan requires Internet Explorer to work. Vista/Windows 7 users need to run Internet Explorer as Administrator.
To do this, right-click on the IE icon in the Start Menu or Quick Launch Bar on the Taskbar and select Run As Administrator from the context menu.
  • Click the green Posted Image button.
  • Read the End User License Agreement and check the box:
  • Check Posted Image.
  • Click the Posted Image button.
  • Accept any security warnings from your browser.
  • Check Posted Image
  • Check Remove found threats and Scan potentially unwanted applications. (If given the option, choose "Quarantine" instead of delete.)
  • Click the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer.
  • If offered the option to get information or buy software at any point, just close the window.
  • The scan will take a while so be patient and do NOT use the computer while the scan is running. Keep all other programs and windows closed.
  • When the scan completes, push Posted Image
  • Push Posted Image, and save the file to your desktop as ESETScan.txt.
  • Push the Posted Image button, then Finish.
  • Copy and paste the contents of ESETScan.txt in your next reply.
Note: A log.txt file will also be created and automatically saved in the C:\Program Files\EsetOnlineScanner\ folder.
If you did not save the ESETScan log, click Posted Image > Run..., then type or copy and paste everything in the code box below into the Open dialogue box:

C:\Program Files\ESET\EsetOnlineScanner\log.txt
  • Click Ok and the scan results will open in Notepad.
  • Copy and paste the contents of log.txt in your next reply.
-- Some online scanners will detect existing anti-virus software and refuse to cooperate. You may have to disable the real-time protection components of your existing anti-virus and try running the scan again. If you do this, remember to turn them back on after you are finished.

NOTE: In some instances if no malware is found there will be no log produced.
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#3 TacomaSailor

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Posted 30 November 2010 - 05:07 PM

PROBLEM SOLVED?? :thumbsup: :busy:

I read more of the excellent tutorials and responses made to other similar inquiries on this forum. I downloaded two more scanners / cleaners

tdsskiller.exe - it found Rootkit.win32.TDSS.dll4 and cleaned it - I rebooted and than ran

Norman Malware Cleaner which found and cleaned win32/Delf.entt which it found in three files in the Hyper-PI utility I used for some stress and temperature testing. That seemed strange since I've been running Hyper-PI for several years but I let Norman do it's thing.

I rebooted and have been testing all applications, functions, utilities, including WEB access and downloads for the last four hours. So far - everything is working perfectly.

Thanks for all the great suggestions and reading material in the tutorials and other responses here

You guys provide a fantastic service - Thank You - Thank You

#4 boopme

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Posted 30 November 2010 - 10:00 PM

You are most welcome and we are glad you succeeded and enjoyed yourself along the way.
That was a good seletion as I would have had you run them post ESET. You should actually run it as it doesn't install and just may get a lingerer.

Some malware look for weakness in the installed application to exploit and hide behind. Not that your application was bad it is not securely written. Like Adobe and Java apps they get updated and 90% are for security flaws.

If there are no more problems or signs of infection, 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




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