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Virus Affecting Wireless Network?


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#1 marinasiena

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Posted 06 August 2008 - 05:12 PM

A friend's Toshiba laptop had Antivirus XP 2008. We thought we'd cleaned it properly, but it's still running slowly. She's been unable to stay connected to her Netgear wireless network. Also, when she's connected, others cannot stay connected. IPs keep dropping.

I thought it might be her network and brought the laptop over to my linksys network. Same issue on my network, and I can't connect while her wireless adapter is on. Turn it off, no problem.

We've got AVG running, and multiple scans havent' found ANYTHING. The laptop is still very slow.

I've used Castlecops' HijackThis explanation, and I can't find anything amiss in the the log nor in the startup.

Anybody help me where to look further? Thanks so much! :thumbsup:

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#2 Budapest

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Posted 06 August 2008 - 05:33 PM

Hello marinasiena and :thumbsup: to Bleeping Computer.

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • 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 updates, manually download them from here and just double-click on mbam-rules.exe to install.
  • On the Scanner tab:
    • Make sure the "Perform Quick 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 and exit MBAM.
Note: If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

#3 marinasiena

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Posted 06 August 2008 - 06:58 PM

Thanks for your reply!

Remember: I do NOT have Internet access on the affected machine so I have to move files with USB keys. I installed Malaware, but couldn't update it successfully without a web connection. Ran it anyway and moved the logfile over to this machine so I can post it:

Malwarebytes' Anti-Malware 1.24
Database version: 1012
Windows 5.1.2600 Service Pack 2

6:20:41 PM 8/6/2008
mbam-log-8-6-2008 (18-20-41).txt

Scan type: Full Scan (C:\|)
Objects scanned: 80108
Time elapsed: 45 minute(s), 52 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 2
Registry Values Infected: 4
Registry Data Items Infected: 2
Folders Infected: 22
Files Infected: 1

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\rhcnl3j0e549 (Rogue.Multiple) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Software Notifier (Rogue.Multiple) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\Control Panel\Desktop\wallpaper (Hijack.Wallpaper) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\Control Panel\Desktop\originalwallpaper (Hijack.Wallpaper) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\Control Panel\Desktop\convertedwallpaper (Hijack.Wallpaper) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\Control Panel\Desktop\scrnsave.exe (Hijack.Wallpaper) -> Quarantined and deleted successfully.

Registry Data Items Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\NoDispBackgroundPage (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\NoDispScrSavPage (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549 (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine\Autorun (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine\Autorun\HKCU (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine\Autorun\HKCU\RunOnce (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine\Autorun\HKLM (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine\Autorun\HKLM\RunOnce (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine\Autorun\StartMenuAllUsers (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine\Autorun\StartMenuCurrentUser (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine\BrowserObjects (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Sal Tripoli\Application Data\rhcnl3j0e549\Quarantine\Packages (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549 (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine\Autorun (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine\Autorun\HKCU (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine\Autorun\HKCU\RunOnce (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine\Autorun\HKLM (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine\Autorun\HKLM\RunOnce (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine\Autorun\StartMenuAllUsers (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine\Autorun\StartMenuCurrentUser (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine\BrowserObjects (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\LocalService\Application Data\rhcnl3j0e549\Quarantine\Packages (Rogue.Multiple) -> Quarantined and deleted successfully.

Files Infected:
C:\WINDOWS\system32\drivers\7cfc6547.sys (Rootkit.KernelBot) -> Delete on reboot.

#4 Budapest

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Posted 06 August 2008 - 07:06 PM

Reboot the computer and run the scan again. You can update it manually by downloading the updates from here, transferring them to the problem computer and then double-click on mbam-rules.exe to install.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

#5 marinasiena

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Posted 06 August 2008 - 07:23 PM

Updated Mal and reran. Got one...then ran again and got NONE.
Scan log #1
Malwarebytes' Anti-Malware 1.24
Database version: 1012
Windows 5.1.2600 Service Pack 2

7:54:28 PM 8/6/2008
mbam-log-8-6-2008 (19-54-28).txt

Scan type: Full Scan (C:\|)
Objects scanned: 79840
Time elapsed: 41 minute(s), 40 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: 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:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\System Volume Information\_restore{0C1D1238-A1EF-43EA-9ACF-9240DDBA7386}\RP283\A0027305.sys (Rootkit.KernelBot) -> Quarantined and deleted successfully.

Scan log #2
Malwarebytes' Anti-Malware 1.24
Database version: 1030
Windows 5.1.2600 Service Pack 2

8:19:19 PM 8/6/2008
mbam-log-8-6-2008 (20-19-19).txt

Scan type: Quick Scan
Objects scanned: 38682
Time elapsed: 17 minute(s), 5 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)

I've got the wireless on and it's slow, but connected. Anything else I should check?

#6 Budapest

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Posted 06 August 2008 - 07:25 PM

You can try the following general internet connectivity problem fixes.

Log on as an administrator, go Start > Run and type: "cmd". In the window that appears type: "netsh winsock reset". When the program is finished, you will receive the message: "Successfully reset the Winsock Catalog. You must restart the machine in order to complete the reset." Close the command box and reboot your computer.

Go Start > Run > type: "cmd" In the window that appears type: "ipconfig /flushdns". Close the command box.

Go Start > Control Panel > Network Connections. Right click on your default connection, usually Local Area Connection or Dial-up Connection if you are using Dial-up, and and choose Properties. Double-click on the Internet Protocol (TCP/IP) item. Select the radio button that says "Obtain DNS servers automatically". Reboot. Warning: Some Internet Service Providers need specific DNS settings. You need to make sure that you know if such DNS settings are required before you make this change.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw




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