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Cannot remove trojan related to WinCodec Pro


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2 replies to this topic

#1 Cpierson

Cpierson

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Posted 02 December 2009 - 02:48 AM

Bogus Warning Messages-

Fatal Error! The media system on your computer is corrupt. Update your video codec immediately to resolve this issue.

Warning! Fatal Error: Can't play audio video files. Update your video codec immediately to resolve this issue.

Warning: Internal error! Media player has been corrupted. Immediately update your video codec to resolve this issue

Fatal Error: Windows can't play the following media formats: AVI;ASF;WMV;AVS;FLV;MKV;MOV;3GP;MP4;MPG;MPEG;MP3;AAC;WAV;WMA;CDA;FLAC;M4A;MID. Update your video codec to resolve this issue.

Warning! Media codec has been destroyed. Risk of losing all your audio video files high. To resolve this issue, update your media codec immediately.

Warning: Critical media error! Your media driver is unstable. Video driver is corrupt and can no longer save your monitor settings. Driver is in critical mode. To restore your media drivers, update your video codec immediately.

Critical Media Error! Windows detected a fatal error in your media system. Your media codec has been corrupted. System can't play audio video files until this issue is resolved. Update your media codec immediately.

+++++++++++++++++++ END OF BUGUS MESSAGES +++++++++++++++++++++++++++++++++

I've run Sypbot S&D, Spyware Doctor (PC Tools) with latest updates. They don't find this.

I've read detailed solutions for this problem including on bleepingcomputer.com (http://www.bleepingcomputer.com/virus-removal/remove-wincodecpro-trojan), but apparently they're out of date. The file names/locations and corresponding registry entries are not in my registry or file structure.

I'll look forward to hearing more. Thanks!
~Chuck

+++++++++++++++++++++++ TXT FILES +++++++++++++++++++++++++++++++++++++++
NOTE: I ran the DDX program twice but was never able to get the 'attach.txt' or the 'dds.txt' files to generate. The black window opened and the program ran, using dots at the bottom of the window to indicate progress. Eventually it stopped making the 'progress dots' but nothing further happened.
Here's the 'ark.txt' (rootpeal) file-

ROOTREPEAL © AD, 2007-2009
==================================================
Scan Start Time: 2009/12/01 22:13
Program Version: Version 1.3.5.0
Windows Version: Windows XP Media Center Edition SP3
==================================================

Drivers
-------------------
Name: av5flt.sys
Image Path: C:\WINDOWS\system32\drivers\av5flt.sys
Address: 0x9F8BC000 Size: 92544 File Visible: No Signed: -
Status: -

Name: dump_iaStor.sys
Image Path: C:\WINDOWS\System32\Drivers\dump_iaStor.sys
Address: 0xA0C0E000 Size: 749568 File Visible: No Signed: -
Status: -

Name: PavSRK.sys
Image Path: C:\WINDOWS\system32\PavSRK.sys
Address: 0xA0E7D000 Size: 32768 File Visible: No Signed: -
Status: -

Name: PavTPK.sys
Image Path: C:\WINDOWS\system32\PavTPK.sys
Address: 0xF68AA000 Size: 49152 File Visible: No Signed: -
Status: -

Name: rootrepeal.sys
Image Path: C:\WINDOWS\system32\drivers\rootrepeal.sys
Address: 0x9F9A3000 Size: 49152 File Visible: No Signed: -
Status: -

SSDT
-------------------
#: 041 Function Name: NtCreateKey
Status: Hooked by "TfSysMon.sys" at address 0xf723fa1c

#: 047 Function Name: NtCreateProcess
Status: Hooked by "PCTCore.sys" at address 0xf7254cdc

#: 048 Function Name: NtCreateProcessEx
Status: Hooked by "PCTCore.sys" at address 0xf7254ece

#: 063 Function Name: NtDeleteKey
Status: Hooked by "TfSysMon.sys" at address 0xf723fc10

#: 065 Function Name: NtDeleteValueKey
Status: Hooked by "TfSysMon.sys" at address 0xf723fcb6

#: 119 Function Name: NtOpenKey
Status: Hooked by "TfSysMon.sys" at address 0xf723f90c

#: 192 Function Name: NtRenameKey
Status: Hooked by "PCTCore.sys" at address 0xf7274d30

#: 247 Function Name: NtSetValueKey
Status: Hooked by "TfSysMon.sys" at address 0xf723fe52

#: 257 Function Name: NtTerminateProcess
Status: Hooked by "C:\WINDOWS\system32\DRIVERS\PavProc.sys" at address 0xa0856a70

#: 258 Function Name: NtTerminateThread
Status: Hooked by "C:\WINDOWS\system32\DRIVERS\PavProc.sys" at address 0xa0855e40

#: 277 Function Name: NtWriteVirtualMemory
Status: Hooked by "C:\WINDOWS\system32\PavSRK.sys" at address 0xa0e7e4e8

Stealth Objects
-------------------
Object: Hidden Handle [Index: 1840, Type: Event]
Process: llBeforeUninstall.exe (PID: 3648) Address: 0x84d56830 Size: -

Object: Hidden Code [Driver: kmixer, IRP_MJ_SYSTEM_CONTROL]
Process: System Address: 0x9e7b94d0 Size: 2864

Object: Hidden Code [Driver: kmixer, IRP_MJ_PNP]
Process: System Address: 0x9e7a2570 Size: 2704

Shadow SSDT
-------------------
#: 343 Function Name: NtUserCreateWindowEx
Status: Hooked by "C:\WINDOWS\system32\DRIVERS\PavProc.sys" at address 0xa0856e50

#: 355 Function Name: NtUserDestroyWindow
Status: Hooked by "C:\WINDOWS\system32\DRIVERS\PavProc.sys" at address 0xa0857030

#: 460 Function Name: NtUserMessageCall
Status: Hooked by "C:\WINDOWS\system32\DRIVERS\PavProc.sys" at address 0xa0857070

#: 475 Function Name: NtUserPostMessage
Status: Hooked by "C:\WINDOWS\system32\DRIVERS\PavProc.sys" at address 0xa0857300

#: 476 Function Name: NtUserPostThreadMessage
Status: Hooked by "C:\WINDOWS\system32\DRIVERS\PavProc.sys" at address 0xa08574e0

==EOF==

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#2 Elise

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Posted 16 December 2009 - 06:38 AM

Hello ,
And :( to the Bleeping Computer Malware Removal Forum
. My name is Elise and I'll be glad to help you with your computer problems.


I will be working on your malware issues, this may or may not solve other issues you may have with your machine.

Please note that whatever repairs we make, are for fixing your computer problems only and by no means should be used on another computer.

You may want to keep the link to this topic in your favorites. Alternatively, you can click the button at the top bar of this topic and Track this Topic, where you can choose email notifications. The topics you are tracking are shown here.
-----------------------------------------------------------
If you have since resolved the original problem you were having, we would appreciate you letting us know. If not please perform the following steps below so we can have a look at the current condition of your machine.

If you have not done so, include a clear description of the problems you're having, along with any steps you may have performed so far.

If you have already posted a DDS log, please do so again, as your situation may have changed.
Use the 'Add Reply' and add the new log to this thread.

We need to see some information about what is happening in your machine. Please perform the following scan:
  • Download DDS by sUBs from one of the following links. Save it to your desktop.
  • Double click on the DDS icon, allow it to run.
  • A small box will open, with an explanation about the tool. No input is needed, the scan is running.
  • Notepad will open with the results.
  • Follow the instructions that pop up for posting the results. Post both logs (no need to zip attach.txt).
  • Close the program window, and delete the program from your desktop.
Please note: You may have to disable any script protection running if the scan fails to run. After downloading the tool, disconnect from the internet and disable all antivirus protection. Run the scan, enable your A/V and reconnect to the internet.

Information on A/V control HERE


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 re-enable all active protection when done.
-- If you encounter any problems, try running GMER in Safe Mode.

-------------------------------------------------------------
Please be patient and I'd be grateful if you would note the following
  • The cleaning process is not instant. DDS logs can take some time to research, so please be patient with me. I know that you need your computer working as quickly as possible, and I will work hard to help see that happen.
  • Please reply using the Add/Reply button in the lower right hand corner of your screen. Do not start a new topic.
  • The logs that you post should be pasted directly into the reply. Only attach them if requested or if they do not fit into the post.
  • Unfortunately, if I do not hear back from you within 5 days, I will be forced to close your topic. If you still need help after I have closed your topic, send me or a moderator a personal message with the address of the thread or feel free to create a new one.
In the meantime please, do NOT install any new programs or update anything unless told to do so while we are fixing your problem

If you still need help, please include the following in your next reply
  • A detailed description of your problems
  • A new DDS log (don't forget attach.txt)
  • GMER log


Please give me some time to review your logs and take the steps necessary with you to get your machine back in working order clean and free of malware.

Thanks and again sorry for the delay
.

regards, Elise


"Now faith is the substance of things hoped for, the evidence of things not seen."

 

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#3 Elise

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Posted 21 December 2009 - 06:30 AM

Due to lack of feedback, this topic is now closed.

If you are the original topic starter and you need this topic to be re-opened, please send me a PM.

Everyone else, please start a new topic.

regards, Elise


"Now faith is the substance of things hoped for, the evidence of things not seen."

 

Follow BleepingComputer on: Facebook | Twitter | Google+ | lockerdome

 

Malware analyst @ Emsisoft





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