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Windows Defender keeps shutting itself off


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#1 alfarod

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Posted 28 January 2012 - 04:39 PM

Hi everyone. Windows Defender (Windows 7) keeps shutting itself off. Every few minutes, the little exclamation mark appears next to the shut down button, alerting me that there are updates to install. So I restart, and after the computer restarts, my "action center" tells me that Windows Defender is turned off. I turn it on. And then a few minutes later another exclamation mark appears next to my shut down button, and I start the whole cycle all over again. Can anyone please help? Thanks.

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#2 cryptodan

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Posted 31 January 2012 - 07:24 PM

Hello,

And welcome to BleepingComputer.com, before we can assist you with your question of: Am I infected? You will need to perform the following tasks and post the logs of each if you can.

Please download and run 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.

Malwarebytes Anti-Malware

NOTEMalwarebytes is now offering a free trial of their program, if you want to accept it you will need to enter some billing information, so that at the end of the trial you would be charged the cost of the product. Please decline this offer, if you are unable to provide billing information. If you want to try it out, then provide the billing information.

Please download Malwarebytes Anti-Malware and save it to your desktop.
Download Link 1
Download Link 2MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.

  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
    For instructions with screenshots, please refer to the How to use Malwarebytes' Anti-Malware Guide.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the definition updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Full Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • 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.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.


SUPERAntiSpyware:

Please download and scan with SUPERAntiSpyware Free

  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If it will not start, go to Start > All Prgrams > SUPERAntiSpyware and click on Alternate Start.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, click the Preferences... button.
  • Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and under Scanner Options, make sure the following are unchecked (leave all others checked):
    • Ignore files larger then 4mb
    • Ignore non-executable files

    Now Perform the scan with SUPERAntiSpyware as follows:
    • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
    • On the left, make sure you check C:\Fixed Drive.
    • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
    • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
    • Make sure everything has a checkmark next to it and click "Next".
    • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
    • If asked if you want to reboot, click "Yes" and reboot normally.
    • To retrieve the removal information after reboot, launch SUPERAntispyware again.[list]
    • Click Preferences, then click the Statistics/Logs tab.
    • Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
    • If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
    • Please copy and paste the Scan Log results in your next reply.
  • Click Close to exit the program.

SAS Portable
If you have a problem downloading, installing or getting SAS to run, try downloading and using the SUPERAntiSpyware Portable Scanner instead. Save the randomly named file (i.e. SAS_1710895.COM) to a usb drive or CD and transfer to the infected computer. Then double-click on it to launch and scan. The file is randomly named to help keep malware from blocking the scanner.


Now GMER

GMER does not work in 64bit Mode!!!!!!

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 Full 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.
-- If you encounter any problems, try running GMER in safe mode.
-- If GMER crashes or keeps resulting in a BSODs, uncheck Devices on the right side before scanning
.


All scans above should be performed in regular boot mode, and if that is not possible then I will post instructions in a follow up reply on how to get into Safe Mode to perform the scans. Also all scans should be COMPLETE and not quick unless specifically instructed to do so.

#3 alfarod

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Posted 01 February 2012 - 03:20 PM

Thanks for helping. I followed your instructions and ran all the tests. Seems like my computer is clean:

Results of screen317's Security Check version 0.99.30

Windows 7 x64 (UAC is enabled)

Internet Explorer 8 Out of date!

``````````````````````````````

Antivirus/Firewall Check:


Windows Firewall Enabled!

WMI entry may not exist for antivirus; attempting automatic update.

```````````````````````````````

Anti-malware/Other Utilities Check:


MVPS Hosts File

Spybot - Search & Destroy

Java™ 6 Update 30

Adobe Reader X (10.1.2)

Mozilla Firefox (9.0.1)

Mozilla Thunderbird (x86 en-US..)

````````````````````````````````

Process Check:

objlist.exe by Laurent


Spybot Teatimer.exe is disabled!

``````````End of Log````````````



Malwarebytes Anti-Malware 1.60.1.1000

www.malwarebytes.org



Database version: v2012.01.31.09



Windows 7 Service Pack 1 x64 NTFS

Internet Explorer 8.0.7601.17514

alfarod :: ALFAROD-PC [administrator]



1/31/2012 4:34:33 PM

mbam-log-2012-01-31 (16-34-33).txt



Scan type: Full scan

Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM

Scan options disabled: P2P

Objects scanned: 392483

Time elapsed: 1 hour(s), 30 minute(s), 10 second(s)



Memory Processes Detected: 0

(No malicious items detected)



Memory Modules Detected: 0

(No malicious items detected)



Registry Keys Detected: 0

(No malicious items detected)



Registry Values Detected: 0

(No malicious items detected)



Registry Data Items Detected: 0

(No malicious items detected)



Folders Detected: 0

(No malicious items detected)



Files Detected: 0

(No malicious items detected)



(end)



SUPERAntiSpyware Scan Log

http://www.superantispyware.com



Generated 01/31/2012 at 09:39 PM



Application Version : 5.0.1142



Core Rules Database Version : 8187

Trace Rules Database Version: 5999



Scan type : Complete Scan

Total Scan Time : 01:03:31



Operating System Information

Windows 7 Home Premium 64-bit, Service Pack 1 (Build 6.01.7601)

UAC On - Limited User



Memory items scanned : 707

Memory threats detected : 0

Registry items scanned : 42946

Registry threats detected : 0

File items scanned : 97943

File threats detected : 0


I don't have a GMER log to post, although it ran and said something about "no modified items" or something like that. But for some reason the log itself was empty. Zero bytes. So I have nothing to post from that. But it does seem like my computer is clean.

Still, when I rebooted, Windows Defender was turned off again. This time, instead of manually turning it on, I waited. In a while, I saw that it was turned on. I rebooted again, and opened Control Panel right away, and went to Action Center. I had the big red alert saying Windows Defender is turned off. And I just watched it. After about a minute and 40 seconds, it came on by itself.

It's possible that my computer has always done this, and I just never noticed, because I never went to Action Center immediately upon booting up. I don't know. Why would Windows Defender start in this delayed fashion?

In any case, it seems clear from the scans that I'm not infected. Thank you for your help. Any other thoughts on why Windows Defender might be starting up after a delay?

#4 cryptodan

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Posted 01 February 2012 - 03:32 PM

Please perform the following, so that we can get the exact specs of your computer. This will better assist us in helping you more.

Publish a Snapshot using Speccy

The below is for those who cannot get online

Please take caution when attaching a text file to your post if you cannot copy/paste the link to your post, you will need to edit it to make sure that your Windows Key is not present.

#5 alfarod

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Posted 01 February 2012 - 04:05 PM

Please forgive me if this sounds rude/ungrateful/ridiculous. But I'm very uncomfortable posting that much info about my system on the internet. Is there any way you could let me know what specific sections or perhaps line items you are interested in? Or maybe there's some other way of diagnosing this? I'm sorry to be so paranoid.

#6 cryptodan

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Posted 01 February 2012 - 04:14 PM

Its perfectly safe to do there is no personal information identified on the speccy I will even do mine. The more information you hide the less we can help you.

http://speccy.piriform.com/results/Pj7XsvQLoSpiYNfSQDJWkqd

There is mine.

#7 alfarod

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Posted 01 February 2012 - 07:28 PM

Very well. I've saved my snapshot as a text file. You mentioned attaching a text file to a post. Is that possible? Or did you mean just pasting the contents of the file into the post?

#8 cryptodan

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Posted 01 February 2012 - 07:32 PM

Paste the link as instructed. The text is for those with no network connectivity.

File > Publish Snapshot > Window Comes up > Copy to clipboard > hit paste in your next post.

#9 alfarod

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Posted 01 February 2012 - 07:36 PM

Respectfully, I'm afraid I'm going to have to decline. I'm sorry. I really appreciate your taking the time to help me, though. Thank you.

Edited by alfarod, 01 February 2012 - 07:36 PM.


#10 cryptodan

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Posted 01 February 2012 - 07:37 PM

YOu can send me the link privately.




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