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Internet periodically slows - suspicion of infection


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14 replies to this topic

#1 Baleburg

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Posted 08 March 2016 - 11:50 AM

Hi. My internet link wa drastically slowed down and OS too. I speak about reduction from ~200kbps to 60... I also had some problems with run FRST in normal mode, and I had to create logs from emergency mode. So i ask you to check my logs. I will be very grateful for your help. Regards.

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#2 Jo*

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Posted 08 March 2016 - 01:59 PM

:welcome: to BleepingComputer.

Hi there,

my name is Jo and I will help you with your computer problems.


Please follow these guidelines:
  • Read and follow the instructions in the sequence they are posted.
  • print or copy & save instructions.
  • back up all your private data / music / important files on another (external) drive before using our tools.
  • Do not install / uninstall any applications, unless otherwise instructed.
  • Use only that tools you have been instructed to use.
  • Copy and Paste the log files inside your post, unless otherwise instructed.
  • Ask for clarification, if you have any questions.
  • Stay with this topic til you get the all clean post.
  • My first language is not english. So please do not use slang or idioms. It could be hard for me to read. Thanks for your understanding.

***


:step1: Download Security Check by screen317 from here or here.
  • Save it to your Desktop.
  • Double click SecurityCheck.exe and follow the onscreen instructions inside of the black box.
    Vista / Windows 7/8 users right-click and select Run As Administrator.
  • A Notepad document should open automatically called checkup.txt; please post the contents of that document.

***


:step2: Please download Malwarebytes Anti-Rootkit and save it to your desktop.
  • Be sure to print out and follow the instructions provided on that same page.
  • Caution: This is a beta version so please be sure to read the disclaimer and back up all your data before using.
  • Double click on downloaded file. OK self extracting prompt.
  • MBAR will start. Click in the introduction screen "next" to continue.
  • Click in the following screen "Update" to obtain the latest malware definitions.
  • Once the update is complete select "Next" and click "Scan".
With some infections, you may see two messages boxes.
  • 'Could not load protection driver'. Click 'OK'.
  • 'Could not load DDA driver'. Click 'Yes' to this message, to allow the driver to load after a restart. Allow the computer to restart. Continue with the rest of these instructions.
  • If malware is found - do not press the Clean up button, please go to the MBAR folder and then copy/paste the contents of the MBAR-log-***.txt file to your next reply.
  • If there is no malware found, please let me know as well.

***


:step3: Please download AdwCleaner by Xplode and save to your Desktop.
Double-click AdwCleaner.exe
Vista / Windows 7/8 users right-click and select Run As Administrator.
  • Click on the Scan button.
  • AdwCleaner will begin...be patient as the scan may take some time to complete.
    The actual line should say "Pending. Please uncheck elements you do not want to remove" => scan is complete.
  • After the scan has finished, click on the Logfile button...a logfile (AdwCleaner[R0].txt) will open in Notepad for review.
  • The contents of the log file may be confusing. Unless you see a program name that you know should not be removed, don't worry about it.
    If you see an entry you want to keep, let me know about it.
  • Copy and paste the contents of that logfile in your next reply.
  • A copy of all logfiles are saved in the C:\AdwCleaner folder which was created when running the tool.

***


Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#3 Baleburg

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Posted 09 March 2016 - 11:21 AM

Hi. Thanks for reply. I enclose raports from SecurityCheck and AdwCleaner. MBAR didn't find any malware.

Attached Files


Edited by Baleburg, 09 March 2016 - 11:21 AM.


#4 Jo*

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Posted 09 March 2016 - 11:25 AM

We now will run ComboFix.exe. Please visit this webpage for download links, and instructions for running the tool:
http://www.bleepingcomputer.com/combofix/how-to-use-combofix

Ensure you have disabled all anti virus and anti malware programs so they do not interfere with the running of ComboFix.

Please include the C:\ComboFix.txt in your next reply for further review.

Then Enable your anti virus program(s).

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#5 Baleburg

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Posted 09 March 2016 - 12:12 PM

I send ComboFix's log

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#6 Jo*

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Posted 09 March 2016 - 12:36 PM

Please download Junkware Removal Tool from HERE and save it to your desktop.
Shutdown your antivirus to avoid any potential conflicts.
Double click JRT.exe to run the tool.
Vista / Windows 7/8 users right-click and select Run As Administrator.
  • JRT will begin to backup your registry and start scanning your system.
  • Please be patient as this can take a while to complete depending on your system's specifications.
  • On completion, the log JRT.txt is saved on your desktop and will automatically open.
Enable your antivirus!
Post the contents of JRT.txt into your next reply.


***


FRST / FSRT64: run it again.
  • Right-click FRST / FSRT64 then click "Run as administrator" (XP users: click run after receipt of Windows Security Warning - Open File).
  • When the tool opens, click Yes to disclaimer.
  • Press the Scan button.
  • When finished, it will produce a log called FRST.txt in the same directory the tool was run from.
  • Please copy and paste the log in your next reply.

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#7 Baleburg

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Posted 09 March 2016 - 12:59 PM

I send JRT and FRST logs. FRST logs are from emergency mode - I still couldn't run or download this tool in normal mode

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#8 Jo*

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Posted 09 March 2016 - 01:09 PM

Open notepad. Please copy the contents of the code box below. To do this highlight the contents of the box and right click on it. Paste this into the open notepad.
Save it in the same location as / FSRT / FSRT64 (usually your desktop) as fixlist.txt
 
start
CreateRestorePoint:
CloseProcesses:
HKLM\SOFTWARE\Policies\Microsoft\Internet Explorer: Ograniczenia <======= UWAGA
HKU\S-1-5-21-4040354391-2915672915-2372491824-1000\SOFTWARE\Policies\Microsoft\Internet Explorer: Ograniczenia <======= UWAGA
S3 catchme; \??\C:\Users\Korsarz\AppData\Local\Temp\catchme.sys [X]
S3 IpInIp; system32\DRIVERS\ipinip.sys [X]
S3 NwlnkFlt; system32\DRIVERS\nwlnkflt.sys [X]
S3 NwlnkFwd; system32\DRIVERS\nwlnkfwd.sys [X]
CMD: ipconfig /flushdns
CMD: netsh winsock reset
CMD: netsh int ip reset c:\resetlog.txt
CMD: ipconfig /release
CMD: ipconfig /renew
CMD: netsh int ipv4 reset
CMD: netsh int ipv6 reset
EmptyTemp:
end


NOTICE: This script was written specifically for this user, for use on that particular machine.
Running this on another machine may cause damage to your operating system


Run FRST / FSRT64 again like we did before but this time press the Fix button just once and wait.
The tool will make a log (Fixlog.txt) please post it to your reply.

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#9 Baleburg

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Posted 09 March 2016 - 01:59 PM

I send Fixlog. Thanks for help.

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#10 Jo*

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Posted 09 March 2016 - 02:55 PM

Hi,

:step1: Download Sophos Free Virus Removal Tool and save it to your desktop.
  • Double click the icon and select Run
  • Click Next
  • Select I accept the terms in this license agreement, then click Next twice
  • Click Install
  • Click Finish to launch the program
  • Once the virus database has been updated click Start Scanning
  • If any threats are found click Details, then View log file... (bottom left hand corner)
  • Copy and paste the results in your reply
  • Close the Notepad document, close the Threat Details screen, then click Start cleanup
  • Click Exit to close the program

***


:step2: ZN3USrZ.png Emsisoft Emergency Kit
  • Click here to download Emsisoft Emergency Kit. The download will automatically start after a moment.
  • Save EmsisoftEmergencyKit.exe to your Desktop.
  • Double click on EmsisoftEmergencyKit.exe (Windows Vista/7/8 users: Accept UAC warning if it is enabled). A screen like this will appear:
    dQVDkTW.png
  • Leave everything as it is, then click Extract. This will unpack Emsisoft Emergency Kit to the EEK folder located in the root drive (usually C:\).
  • Once the extraction is done, an icon qwL1Upn.png will appear on your Desktop. Double click it to start Emsisoft Emergency Kit.
  • Wait for Emsisoft Emergency Kit to finish loading signatures. A screen like this should appear:
    yEgPemv.png
  • Choose Yes, then wait for EEK to finish updating.
  • Choose Malware Scan under the Scan button. When EEK asks to activate PUP detection, choose Yes.
  • Wait for the scan to finish.
    RUeRoi4.png
  • If EEK detects something, all detected items will be displayed. Place a checkmark before everything, then choose Quarantine Selected.
  • If Emsisoft Emergency Kit asks to reboot, please do so immediately.
  • The scan log is located in Logs -> Scan Logs. Click on the entry of the latest scan, choose Export and save the report on your Desktop.
    P7FSALs.png
  • Please Copy and Paste the contents of the scan log in your next reply.

***


:step3: How the computer is running now?

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#11 Baleburg

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Posted 10 March 2016 - 10:38 AM

Sophos didn't found anything. Graphic interface of EEK don't run on Windows Vista, so I run this by command line.The computer runs well so far, but downturns of internet still occuring. I sent log from EEK.

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#12 Jo*

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Posted 10 March 2016 - 11:05 AM

Hello again,

:step1: We need to download Temp File Cleaner (TFC) by OldTimer:
  • Please download TFC.exe by Oldtimer at one of the two links: Link 1 Link 2
  • Save and close all running applications
  • Double-click on TFC.exe to run the program
  • Click on Start to begin the cleaning process note: this program may close running applications, make your screen disappear temporarily, or require a reboot of your PC - this is normal and part of the cleanup
  • When the scan is complete, if you were not asked to reboot the computer, please do so now
More Information can be found about the tool here:
http://www.geekstogo.com/forum/files/file/187-tfc-temp-file-cleaner-by-oldtimer/



***


:step2: ESET Online Scanner
  • Click here to download the installer for ESET Online Scanner and save it to your Desktop.
  • Disable all your antivirus and antimalware software - see how to do that here.
  • Right click on esetsmartinstaller_enu.exe and select Run as Administrator.
  • Place a checkmark in YES, I accept the Terms of Use, then click Start. Wait for ESET Online Scanner to load its components.
  • Select Enable detection of potentially unwanted applications.
  • Click Advanced Settings, then place a checkmark in the following:
    • Remove found threats
    • Scan archives
    • Scan for potentially unsafe applications
    • Enable Anti-Stealth technology
  • Click Start to begin scanning.
  • ESET Online Scanner will start downloading signatures and scan. Please be patient, as this scan can take quite some time.
  • When the scan is done, click List threats (only available if ESET Online Scanner found something).
  • Click Export, then save the file to your desktop.
  • Click Back, then Finish to exit ESET Online Scanner.
Open the scan log and copy and paste the content to your next reply.
 

***


:step3: How the computer is running now?

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#13 Baleburg

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Posted 10 March 2016 - 02:24 PM

ESET didn't find anything. So, probably origins of my problem aren't malware, but something other. Thanks for help



#14 Jo*

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Posted 10 March 2016 - 02:36 PM

Your remaining issues are not malware related, if you need still help, please start a new topic at our
internet-networking forum section.



===================================


***


It Appears That Your Pc Is Now Clean!


***


Clean up:


***


We used Combofix.
Deactivate your antivirus software once more.
  • Click START then RUN
  • Now type Combofix /uninstall in the runbox and click OK. Note the space between the X and the /, it needs to be there.

    CF-Uninstall.png
Enable your antivirus software.


***


Right-click AdwCleaner.exe and select Run As Administrator.
  • Click on the Uninstall button.
  • A window will open, press the Confirm button.
  • AdwCleaner will uninstall now.

***


Clean up with delfix:
  • please download delfix to your desktop.
  • Close all other programms and start delfix.
  • Please check all the boxes and run the tool.
  • delfix will now delete all found traces of our removal process

***


Delete the log files our tools created; they are located at your desktop or at the
"c:\users\{.......}\Downloads" folder.
Highlight them, and press the del or delete key on the keyboard.
You can browse to the location of the file or folder using either My Computer or Windows Explorer.


***


Here are some Preventive tips to reduce the potential for spyware infection in the future

:step1: Browse more secure :step2: Make sure you keep your Windows OS current.
  • Windows XP users can visit Windows update regularly to download and install any critical updates and service packs.
  • Windows Vista / 7 / 8 users can update via
    Start menu > All Programs > Windows Update > Check for Updates (in left hand task pane).
:step3: Avoid P2P
  • If you think you're using a "safe" P2P program, only the program is safe, not the data.
  • You will share files from unsafe sources, and these may be infected.
  • Some bad guys use P2P filesharing as an important chanel to spread their wares.
:step4: Use only one anti-virus software and keep it up-to-date.

:step5: Firewall
Without a firewall your computer is succeptible to being hacked and taken over. I am very serious about this and see it happen almost every day with my clients. Simply using a Firewall in its default configuration can lower your risk greatly.

:step6: Backup regularly
You never know when your PC will become unstable or become so infected that you can't recover it.

:step7: Use Strong passwords!

:step8: Email attachments
Do not open any unknown email attachments, which you received without asking for it!


Extra note:
Keep your Browser, Java, pdf Reader and Adobe Flash Up to Date.
And you could install Malwarebytes Anti-Exploit to run alongside your traditional anti-virus or anti-malware products.

Make sure your programs are up to date - because older versions may contain Security Leaks.

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.


#15 Jo*

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Posted 11 March 2016 - 01:25 PM

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.

Graduate of the WTT Classroom
Cheers,
Jo
If I have been helping you, and I have not replied to your latest post in 36 hours please send me a PM.





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