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Possible malware infection, blocking internet access.


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#1 deadward

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Posted 31 May 2010 - 06:58 PM

About a month back, I was infected with the "Antimalware Doctor" trojan. I did a lot of antimalware scans, some manual file removal, and some registry editing. It seemed to clear up the problem. Within the next couple weeks however, I was noticing out-of-place phishing site popups while browsing Firefox, and occasionally AVG 8 Free would pop up with notifications that certain system dlls were infected. I'm not sure if this behavior is related to my current issue, but I figured it should be included regardless.

Just today, after a brief power outage, I booted my computer to find some further strange behavior. After selecting my profile upon startup, there is a good 30-second gap of blank background before explorer.exe appears in the task manager and loads my desktop. Once my desktop loads, the Windows XP Themes service appears to have been disabled, and only the Windows Classic theme is available until I manually start the service. According to the network connection icon in the taskbar, my Local Area Connection has "Limited or no Connectivity," and is neither sending nor receiving any packets. But if I plug the ethernet cable into my laptop, it works just fine. In the Task Manager, I noticed a suspicious-looking executable running from the sys32 directory. I removed it and the associated registry key, but can't remember the name of the file. In Safe Mode, my wired network adapter does not appear in the list of Network Connections, though my motherboard's network adapter appears functional in the device manager. MBAM has turned up no results.

At a loss, would majorly appreciate assistance.

Edit: Oh yes, and rkill consistently kills nothing but itself.

Edited by deadward, 31 May 2010 - 07:03 PM.


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#2 deadward

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Posted 31 May 2010 - 11:35 PM

BUMP

I hope someone out there can help me. :thumbsup:

#3 Blade

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Posted 02 June 2010 - 09:09 PM

Hello deadward and :thumbsup: to BleepingComputer

Please be aware that the following scans will take some time to run.

Download TFC by OldTimer to your desktop.
(TFC only cleans temp folders. It will not clean URL history, prefetch, or cookies).
Close any open windows.
  • Double click the TFC icon to run the program
  • TFC will close all open programs itself in order to run,
  • Click the Start button to begin the process.
  • Allow TFC to run uninterrupted.
  • The program should not take long to finish it's job.
Once its finished it should automatically reboot your machine, if it doesn't, manually reboot to ensure a complete clean

NOTE:
It's normal after running TFC that the PC will be slower to boot the first time.

TFC (Temp File Cleaner) will clear out all temp folders for all user accounts (temp, IE temp, java, FF, Opera, Chrome, Safari), including Administrator, All Users, LocalService, NetworkService, and any other accounts in the user folder.


***************************************************

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 checked (uncheck all others):
    • 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 a scan just yet.
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode". When logging in, log in under the account that you normally use; do NOT log in under the account titled "Admin" or "Administrator" unless this account is the one used normally.

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.
    • 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.
~Blade


In your next reply, please include the following:
SUPERAntiSpyware log

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