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Internet Explorer Proxy Server 127.0.0.1 Disables Windows Update


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#1 S0lari0

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Posted 05 April 2016 - 09:21 PM

Hi, running Windows 7 x64 SP1 notebook, noticed Windows Update failed and found Internet Explorer LAN proxy server settings had been modified to: 127.0.0.1:8888 which appears to be some form of malware/trojan/virus.

 

I was able to add Windows Update exceptions to proxy settings and temporarily remove the changes which allowed Windows Update to function properly but the proxy settings in IE were modified again on reboot.

 

Avast and Malwarebytes don't pick up anything, rebooted in Safe Mode and removed the proxy settings again which hasn't changed again upon reboot but would like to be sure I am clear of or don't have any other infections. I don't have an issue with Firefox which is my default browser.

 

I posted in the "Am I Infected? What do I do?"

 

http://www.bleepingcomputer.com/forums/t/610200/internet-explorer-proxy-server-127001-disables-windows-update/?p=3973643

 

and followed the instructions give there to run Farbar and post the logs here.

 

Thanks for the assistance!

 

Attached File  Addition.txt   50.45KB   3 downloads

 

Attached File  FRST.txt   60.93KB   5 downloads


Edited by S0lari0, 05 April 2016 - 09:23 PM.


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#2 nasdaq

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Posted 06 April 2016 - 09:34 AM

Hello, Welcome to BleepingComputer.
I'm nasdaq and will be helping you.

If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps in the order listed.
===

Press the windows key Windows_Logo_key.gif+ r on your keyboard at the same time. This will open the RUN BOX.
Type Notepad and and click the OK key.
Please copy the entire contents of the code box below to the a new file.
 
start


CreateRestorePoint:
EmptyTemp:
CloseProcesses:
RemoveProxy:

HKLM-x32\...\Run: [] => [X]
CHR HKU\S-1-5-21-1139747661-3720200840-1728026816-1004\SOFTWARE\Policies\Google: Restriction <======= ATTENTION
HKLM\SOFTWARE\Policies\Microsoft\Internet Explorer: Restriction <======= ATTENTION
HKU\S-1-5-21-1139747661-3720200840-1728026816-1004\SOFTWARE\Policies\Microsoft\Internet Explorer: Restriction <======= ATTENTION
HKU\S-1-5-21-1139747661-3720200840-1728026816-1004\Software\Microsoft\Internet Explorer\Main,Start Page = hxxps://www.duckduckgo.com/
SearchScopes: HKLM -> DefaultScope value is missing
SearchScopes: HKLM -> {b7fca997-d0fb-4fe0-8afd-255e89cf9671} URL = hxxp://search.yahoo.com/search?p={searchTerms}&ei={inputEncoding}&fr=chr-hp-psg&type=HPNTDF
SearchScopes: HKLM -> {d43b3890-80c7-4010-a95d-1e77b5924dc3} URL = hxxp://en.wikipedia.org/wiki/Special:Search?search={searchTerms}
SearchScopes: HKLM-x32 -> DefaultScope value is missing
SearchScopes: HKLM-x32 -> {b7fca997-d0fb-4fe0-8afd-255e89cf9671} URL = hxxp://search.yahoo.com/search?p={searchTerms}&ei={inputEncoding}&fr=chr-hp-psg&type=HPNTDF
SearchScopes: HKLM-x32 -> {d43b3890-80c7-4010-a95d-1e77b5924dc3} URL = hxxp://en.wikipedia.org/wiki/Special:Search?search={searchTerms}
SearchScopes: HKU\S-1-5-21-1139747661-3720200840-1728026816-1004 -> DefaultScope {3098ECB2-F559-4DCE-A248-0D449DBB5C64} URL = hxxps://duckduckgo.com/?q={searchTerms}
SearchScopes: HKU\S-1-5-21-1139747661-3720200840-1728026816-1004 -> {3098ECB2-F559-4DCE-A248-0D449DBB5C64} URL = hxxps://duckduckgo.com/?q={searchTerms}
SearchScopes: HKU\S-1-5-21-1139747661-3720200840-1728026816-1004 -> {d43b3890-80c7-4010-a95d-1e77b5924dc3} URL = hxxp://en.wikipedia.org/wiki/Special:Search?search={searchTerms}
FF DefaultSearchEngine.US: DuckDuckGo
FF Homepage: hxxps://duckduckgo.com/
FF Plugin: @microsoft.com/GENUINE -> disabled [No File]
FF Plugin-x32: @java.com/DTPlugin,version=11.66.2 -> C:\Program Files (x86)\Java\jre1.8.0_66\bin\dtplugin\npDeployJava1.dll [No File]
FF Plugin-x32: @java.com/JavaPlugin,version=11.66.2 -> C:\Program Files (x86)\Java\jre1.8.0_66\bin\plugin2\npjp2.dll [No File]
FF Plugin-x32: @microsoft.com/GENUINE -> disabled [No File]
FF Plugin-x32: @tools.google.com/Google Update;version=3 -> C:\Program Files (x86)\Google\Update\1.3.29.1\npGoogleUpdate3.dll [No File]
FF Plugin-x32: @tools.google.com/Google Update;version=9 -> C:\Program Files (x86)\Google\Update\1.3.29.1\npGoogleUpdate3.dll [No File]
CHR HKLM-x32\...\Chrome\Extension: [eofcbnmajmjmplflapaojjnihcjkigck] - C:\Program Files\AVAST Software\Avast\WebRep\Chrome\aswWebRepChromeSp.crx [2016-02-04]
CHR HKLM-x32\...\Chrome\Extension: [gomekmidlodglbbmalcneegieacbdmki] - C:\Program Files\AVAST Software\Avast\WebRep\Chrome\aswWebRepChrome.crx [2016-02-04]
S3 CpqDfw; system32\drivers\CpqDfw.sys [X]
S3 efavdrv; \??\C:\Windows\system32\drivers\efavdrv.sys [X]
S2 VBoxAswDrv; \??\C:\Program Files\AVAST Software\Avast\ng\vbox\VBoxAswDrv.sys [X]

End
Save the file as fixlist.txt in the same folder where the Farbar tool is running from.
The location is listed in the 3rd line of the Farbar log you have submitted.

Run FRST and click Fix only once and wait.

Restart the computer normally to reset the registry.

The tool will create a log (Fixlog.txt) please post it to your reply.
===

Please download AdwCleaner by Xplode onto your Desktop.
  • Close all open programs and internet browsers.
  • Double click on AdwCleaner.exe to run the tool.
  • Click the Scan button and wait for the process to complete.
  • Click the LogFile button and the report will open in Notepad.
IMPORTANT
  • If you click the Clean button all items listed in the report will be removed.
If you find some false positive items or programs that you wish to keep, Close the AdwCleaner windows.
  • Close all open programs and internet browsers.
  • Double click on AdwCleaner.exe to run the tool.
  • Click the Scan button and wait for the process to complete.
  • Check off the element(s) you wish to keep.
  • Click on the Clean button follow the prompts.
  • A log file will automatically open after the scan has finished.
  • Please post the content of that log file with your next answer.
  • You can find the log file at C:\AdwCleanerCx.txt (x is a number).
===

Firefox:
Reset Default Browsing settings:
https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-problems?utm_expid=65912487-41.djHNRQY0RhaLvvtvcd0BQA.2&utm_referrer=https%3A%2F%2Fwww.google.ca%2F

Clean the Firefox Cache.
https://kb.iu.edu/d/ahic#firefox
===

Please post the logs.

Let me know if the problem persists.

#3 S0lari0

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Posted 06 April 2016 - 01:02 PM

Hi nasdaq, thank you for taking the time to assist me. I followed your instructions and have attached both logs.

 

It appears IE and Windows update are functioning normally. The only thing I noticed in Firefox after reset is "Use System Proxy" is the selected option in Network Settings though it appears that may be the default setting.

 

What sort of infection was this and should I be concerned about changing passwords and such or any personal information having been accessible?

 

Thanks again!

 

Attached File  Fixlog.txt   8.07KB   1 downloads

 

Attached File  AdwCleanerC3.txt   1.45KB   2 downloads


Edited by S0lari0, 06 April 2016 - 01:03 PM.


#4 nasdaq

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Posted 06 April 2016 - 01:11 PM

Looking good.

If all is well.

To learn more about how to protect yourself while on the internet read this little guide best security practices keep safe.
http://www.bleepingcomputer.com/forums/t/407147/answers-to-common-security-questions-best-practices/

#5 S0lari0

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Posted 06 April 2016 - 01:15 PM

Okay here, thank you for your assistance!



#6 nasdaq

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Posted 12 April 2016 - 08:03 AM

It appears that this issue is resolved, therefore I am closing the topic. If that is not the case and you need or wish to continue with this topic, please send me or any Moderator a Personal Message (PM) that you would like this topic re-opened.




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