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Aaaaargh..Taskmgr.exe wants to make changes...Virus???


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7 replies to this topic

#1 izzynet

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Posted 21 September 2011 - 08:07 PM

Hi,

I'm using a fairly new laptop, windows 7 64 and just got this pop-up:

Do you want to allow the following program from an unknown publisher to make changes to this computer?

Program - taskmgr.exe
Publisher : unknown
File origin: Hard drive on this computer
Program location : C:\Users\Izzy\taskmgr.exe
<0000000002BA0000>15000

Clicking no doesn't do a thing.


"Search Everything" brought these to view:

C:\Users\Izzy\taskmgr.exe
C:\Windows\SysWOW64\taskmgr.exe
C:\Windows\winsxs\amd64_microsoft-windows-taskmgr_31bf3856ad364e35_6.1.7601.17514_none_7288349cbfd37b08\taskmgr.exe
C:\Windows\Prefetch\TASKMGR.EXE-4C8500BA.pf
C:\Windows\winsxs\amd64_microsoft-windows-taskmgr.resources_31bf3856ad364e35_6.1.7600.16385_en-us_32d103f978c42b21\taskmgr.exe.mui
C:\Windows\winsxs\x86_microsoft-windows-taskmgr.resources_31bf3856ad364e35_6.1.7600.16385_en-us_d6b26875c066b9eb\taskmgr.exe.mui

Quick scan with Malwarebytes - nothing
Quick scan with Microsoft Security Essentials (my antivirus) - nothing

A couple weeks ago, my laptop got infected with win32/rorpian, win32/FakeRean, win32/Alureon and win64/sirefef.B. All removed, but I believe the taskmgr issue started afterwards and it's the first time it happens since then.

I know there are other threads similar to this but they might not apply to my situation, I'd rather follow your instructions.

Thank you very much for your help.

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#2 Broni

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Posted 21 September 2011 - 08:47 PM

Welcome aboard Posted Image

C:\Users\Izzy\taskmgr.exe

The above location is very suspicious.

Please download SystemLook from one of the links below and save it to your Desktop.
Download Mirror #1
Download Mirror #2

64-bit users go HERE
  • Double-click SystemLook.exe to run it.
  • Vista\Win 7 users:: Right click on SystemLook.exe, click Run As Administrator
  • Copy the content of the following box into the main textfield:
    :file
    C:\Users\Izzy\taskmgr.exe   
    
  • Click the Look button to start the scan.
  • When finished, a notepad window will open with the results of the scan. Please post this log in your next reply.
Note: The log can also be found on your Desktop entitled SystemLook.txt

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#3 izzynet

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Posted 22 September 2011 - 07:55 PM

Hi Broni,

Thanks for welcoming me and for answering so fast!

I am stupid...after posting, I tried to delete the file and..surprise..it worked.

I didn't think you would need the file... :wacko: :wacko: :o :wacko::wink:

I then did a scan with Hitman, found a trojan (don't know if it was related), rebooted and very happily resumed work... :busy:

The same thing might happen again though -Taskmgr.exe appearing suddenly in that location- and I downloaded SystemLook.

Please let me know if there is anything else I should do other than browse the forum...

Thank you so much for helping.

Izzy

PS You're very close, I'm in LA!

Edited by izzynet, 22 September 2011 - 07:58 PM.


#4 Broni

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Posted 22 September 2011 - 08:25 PM

If you wish we can run some extra scans to make sure nothing is hiding there.
Let me know...

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#5 izzynet

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Posted 26 September 2011 - 01:38 AM

Sure, Broni, if you think it's necessary.
I don't want to take up your time though..
Thanks,
Izzy

#6 Broni

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Posted 26 September 2011 - 10:13 AM

I'd say better safe than sorry :)

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#7 izzynet

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Posted 26 September 2011 - 04:54 PM

You're right. What should I do then?

#8 Broni

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Posted 26 September 2011 - 04:55 PM

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
  • Report FF Proxy Settings
  • List content of Hosts
  • List IP configuration
  • List last 10 Event Viewer log
  • List Installed Programs
  • 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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