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Computer will not Access Internet


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#1 microchip

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Posted 13 November 2010 - 09:52 PM

My computer got infected with backdoor.bot and with a couple of trojan viruses. Before I removed these viruses my internet had stopped working. I followed the directions here to remove the viruses. My computer fully connects to the internet and I am able to access it but then stops working after five minutes everytime i restart the computer. When i have the computer on "safe mode with networking" though, it works and never stops. What can I do? I keep scanning for viruses using Malwarebytes but nothing pops up anymore. I know it can't be my router or internet service either because the other computer in my house is able to access the internet.

Thank you!

Edited by Blade Zephon, 13 November 2010 - 10:28 PM.
Moved to AII. ~BZ


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#2 boopme

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Posted 14 November 2010 - 12:14 AM

Hello and welcome.
Please click Start > Run, type inetcpl.cpl in the runbox and press enter.

Click the Connections tab and click the LAN settings option.

Verify if "Use a proxy..." is checked, if so, UNcheck it and click OK/OK to exit.

Now check if the internet is working again.


now run FakeAlert Stinger.

Next run ATF and SAS: If you cannot access Safe Mode,run in normal ,but let me know.

Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

From your regular user account..
Download Attribune's ATF Cleaner and then SUPERAntiSpyware , Free Home Version. Save both to desktop ..
DO NOT run yet.
Open SUPER from icon and install and Update it
Under Scanner Options make sure the following are checked (leave all others unchecked):
Close browsers before scanning.
Scan for tracking cookies.
Terminate memory threats before quarantining
.
Click the "Close" button to leave the control center screen and exit the program. DO NOT run yet.

Now reboot into Safe Mode: How to enter safe mode(XP)
Using the F8 Method
Restart your computer.
When the machine first starts again it will generally list some equipment that is installed in your machine, amount of memory, hard drives installed etc. At this point you should gently tap the F8 key repeatedly until you are presented with a Windows XP Advanced Options menu.
Select the option for Safe Mode using the arrow keys.
Then press enter on your keyboard to boot into Safe Mode
.

Double-click ATF-Cleaner.exe to run the program.
Under Main "Select Files to Delete" choose: Select All.
Click the Empty Selected button.

If you use Firefox or Opera browser click that browser at the top and choose: Select All
Click the Empty Selected button.
If you would like to keep your saved passwords, please click No at the prompt.
Click Exit on the Main menu to close the program
.

NOW Scan with SUPER
Open from the desktop icon or the program Files list
On the left, make sure you check C:\Fixed Drive.
Perform a Complete scan. After scan,Verify they are all checked.
Click OK on the summary screen to quarantine all found items.
If asked if you want to reboot, click "Yes" and reboot normally.

To retrieve the removal information after reboot, launch SUPERAntispyware again.
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.


Please ask any needed questions,post logs and Let us know how the PC is running now.
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#3 microchip

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Posted 14 November 2010 - 04:16 PM

Thank you very much boopme for your reply! I changed the internet LAN settings and the internet started working again. I now though seem to have other problems. Now the internet is running really slow and everytime I open IE I get this message: "Congratulations on your recent purchase of a Dell Computer preconfigured with Windows Live."Which is a message I got when I first bought the computer. Also, youtube videos don't play anymore; all I get is a black box in place of the video. Pdf files won't open anymore and only some .doc files open. I did everything else you told me to do and the scan log is below.

SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 11/14/2010 at 02:50 AM

Application Version : 4.45.1000

Core Rules Database Version : 5858
Trace Rules Database Version: 3670

Scan type : Complete Scan
Total Scan Time : 01:13:10

Memory items scanned : 280
Memory threats detected : 0
Registry items scanned : 9562
Registry threats detected : 1
File items scanned : 218994
File threats detected : 2

System.BrokenFileAssociation
HKCR\.exe

Trojan.Agent/Gen-Fake[Shell]
C:\USERS\ARTURO\APPDATA\ROAMING\MICROSOFT\WINDOWS\SHELL.EXE
C:\Windows\Prefetch\SHELL.EXE-3C0DC9C4.pf

Edited by microchip, 14 November 2010 - 05:31 PM.


#4 boopme

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Posted 14 November 2010 - 06:24 PM

OK, we are still infected.
Rerun MBAM (MalwareBytes) like this:

Open MBAM in normal/regular mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan (normal mode).
After scan click Remove Selected, Post new scan log and Reboot into normal mode.


Please perform a scan with Eset Online Antiivirus Scanner.
This scan requires Internet Explorer to work. Vista/Windows 7 users need to run Internet Explorer as Administrator.
To do this, right-click on the IE icon in the Start Menu or Quick Launch Bar on the Taskbar and select Run As Administrator from the context menu.
  • Click the green Posted Image button.
  • Read the End User License Agreement and check the box:
  • Check Posted Image.
  • Click the Posted Image button.
  • Accept any security warnings from your browser.
  • Check Posted Image
  • Check Remove found threats and Scan potentially unwanted applications. (If given the option, choose "Quarantine" instead of delete.)
  • Click the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer.
  • If offered the option to get information or buy software at any point, just close the window.
  • The scan will take a while so be patient and do NOT use the computer while the scan is running. Keep all other programs and windows closed.
  • When the scan completes, push Posted Image
  • Push Posted Image, and save the file to your desktop as ESETScan.txt.
  • Push the Posted Image button, then Finish.
  • Copy and paste the contents of ESETScan.txt in your next reply.
Note: A log.txt file will also be created and automatically saved in the C:\Program Files\EsetOnlineScanner\ folder.
If you did not save the ESETScan log, click Posted Image > Run..., then type or copy and paste everything in the code box below into the Open dialogue box:

C:\Program Files\ESET\EsetOnlineScanner\log.txt
  • Click Ok and the scan results will open in Notepad.
  • Copy and paste the contents of log.txt in your next reply.
-- Some online scanners will detect existing anti-virus software and refuse to cooperate. You may have to disable the real-time protection components of your existing anti-virus and try running the scan again. If you do this, remember to turn them back on after you are finished.

NOTE: In some instances if no malware is found there will be no log produced.
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#5 microchip

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Posted 15 November 2010 - 01:06 AM

Okay I updated MBAM and ran a quick scan. The log is posted below. I tried so many times to run Eset Online Antiivirus Scanner but IE crashed every single time. I am starting to think that I might have to reinstall Windows but I would like to avoid that because I have very important programs, like Matlab, that I need for school installed on this computer.

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 5117

Windows 6.0.6001 Service Pack 1
Internet Explorer 7.0.6001.18000

11/14/2010 8:40:46 PM
mbam-log-2010-11-14 (20-40-46).txt

Scan type: Quick scan
Objects scanned: 144773
Time elapsed: 6 minute(s), 47 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 5
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 1

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\load (Trojan.Agent) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\u32.exe (Trojan.Downloader) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winsp1up.exe (Rogue.Agent) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\7bde84a2-f58f-46ec-9eac-f1f90fead080 (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mxygoibyas.exe (Trojan.Downloader) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\Users\Arturo\AppData\Roaming\Microsoft\stor.cfg (Malware.Trace) -> Quarantined and deleted successfully.

#6 boopme

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Posted 15 November 2010 - 12:05 PM

Hello we have a couple options before we go reformat... Let's try another scanner first.

Please run the F-Secure Online Scanner
Note: This Scanner is for Internet Explorer Only!
Follow the Instruction here for installation.
Accept the License Agreement.
Once the ActiveX installs,Click Full System Scan
Once the download completes, the scan will begin automatically.
The scan will take some time to finish, so please be patient.
When the scan completes, click the Automatic cleaning (recommended) button.
Click the Show Report button and Copy&Paste the entire report in your next reply.
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#7 microchip

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Posted 21 November 2010 - 03:26 AM

Sorry for my late response, but I've been busy with school. Five days ago, when I was using the internet at school, I decided to download Google Chrome to see if that would work, and it did. Everything worked on Chrome. But then when I came home, Chrome wasn't working anymore but now IE was working like before I got the virus. I didn't do anything to it, it just started working. Today that I had time, I decided to run the ESET scanner and it found several threats. Here is the scan log:

C:\Users\Arturo\AppData\Local\Temp\icarlsm.dll a variant of Win32/Kryptik.HWX trojan cleaned by deleting (after the next restart) - quarantined
C:\Users\Arturo\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\1\7af69081-16d9bb5b a variant of Java/TrojanDownloader.OpenStream.NAU trojan deleted - quarantined
C:\Users\Arturo\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\1\db986c1-395713c6 a variant of Java/TrojanDownloader.OpenStream.NAU trojan deleted - quarantined
C:\Users\Arturo\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\15\7a06650f-61a53250 a variant of Java/TrojanDownloader.OpenStream.NAU trojan deleted - quarantined
C:\Users\Arturo\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\24\95d4f18-7962b126 a variant of Java/TrojanDownloader.OpenStream.NAU trojan deleted - quarantined
C:\Users\Arturo\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\46\5862e52e-26d91183 a variant of Java/TrojanDownloader.OpenStream.NAU trojan deleted - quarantined
C:\Users\Arturo\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\52\e649f74-1c6ac049 multiple threats deleted - quarantined
C:\Users\Arturo\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\58\fa8f07a-5a5683ef probably a variant of Win32/Agent.DYXWUMY trojan deleted - quarantined

#8 boopme

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Posted 21 November 2010 - 03:16 PM

Hello, no problem we all have lives to live, Let's run these )I hope ) last 2 scans. After we are done cleaning you can try re installing Chrome if you want to use it.

Please download the TDSS Rootkit Removing Tool (TDSSKiller.exe) and save it to your Desktop. <-Important!!!
Be sure to download TDSSKiller.exe (v2.4.0.0) from Kaspersky's website and not TDSSKiller.zip which appears to be an older version 2.3.2.2 of the tool.
  • Double-click on TDSSKiller.exe to run the tool for known TDSS variants.
    Vista/Windows 7 users right-click and select Run As Administrator.
  • If TDSSKiller does not run, try renaming it.
  • To do this, right-click on TDSSKiller.exe, select Rename and give it a random name with the .com file extension (i.e. 123abc.com). If you do not see the file extension, please refer to How to change the file extension.
  • Click the Start Scan button.
  • Do not use the computer during the scan
  • If the scan completes with nothing found, click Close to exit.
  • If malicious objects are found, they will show in the Scan results - Select action for found objects and offer three options.
  • Ensure Cure (default) is selected, then click Continue > Reboot now to finish the cleaning process.
  • A log file named TDSSKiller_version_date_time_log.txt (i.e. TDSSKiller.2.4.0.0_27.07.2010_09.o7.26_log.txt) will be created and saved to the root directory (usually Local Disk C:).
  • Copy and paste the contents of that file in your next reply.


Rerun MBAM (MalwareBytes) like this:

Open MBAM in normal/regular mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan (normal mode).
After scan click Remove Selected, Post new scan log and Reboot into normal mode.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#9 microchip

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Posted 21 November 2010 - 04:53 PM

Thanks boopme. I ran the TDSS Rootkit Removing Tool and it was quick scan that took 14 seconds and it didn't find anything. I updated MBAM and ran a quick scan and it didn't find anything either. Below is the scan log from MBAM:

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 5166

Windows 6.0.6001 Service Pack 1
Internet Explorer 7.0.6001.18000

11/21/2010 3:47:07 PM
mbam-log-2010-11-21 (15-47-07).txt

Scan type: Quick scan
Objects scanned: 145746
Time elapsed: 5 minute(s), 29 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#10 boopme

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Posted 21 November 2010 - 06:32 PM

Looks good here,try chrome now if you want.

Then you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been backed up, renamed and saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok". Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" tab, then click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Vista and Windows 7 users can refer to these links: Create a New Restore Point in Vista or Windows 7 and Disk Cleanup in Vista.
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