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Fake Virus Warnings virus which has led to other serious problems


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#1 sarlypops

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Posted 10 August 2009 - 10:36 AM

Hi, im new to this forum so I apologise in advance for anything I may have done or said wrong...

A few days ago I was hit with the fake virus warnings bug. A little red X in the explorer bar with a bubble telling me "warning! your system has been infected!" and when u clicked on it it did a fake virus scan and told me to download "Personal Antivirus". I know enough about computers to recognise that this was suspicious so I looked it up on the net and found other people had had similar problems. I downloaded Avira to try and fix the problem which it seemed to do after just one scan but many other problems seem to have arisen as a result of this. I don't know if they are related or not but they only started happened after I got rid of the alerts.

My search results in google are now all redirected to adverts or virus detection program websites, both in Firefox and internet explorer. The only way to view my desired search result is to view the "cashed" page. Internet Explorer is constantly running in the background too, and randomly pops up ads despite the fact I've blocked all pop ups and cookies on IE.

Today my computer started rebooting itself which I first thought was random, but it seems to happen everytime I try to access my documents. After it reboots it tells me it has recovered from a serious error. This happened about 3 times before the error message has become corrupt and I cannot report it because it is corrupt. Task Manager has also become corrupted randomly. When I hit CTRL + ALT + DELETE I get a bubble message that states: "Windows - Corrupt File. The file or directory \WINDOWS\Prefetch\TASKMGR.EXE-06144C13.pf is corrupt and unreadable. Please run the Chkdsk utility". When I try and run ChkDsk I get the message "Windows could not complete disk check properly" before it even attempts the begin.

I have since removed any recent programs and files that I have downloaded, got rid of Avira, downloaded AVG (which found some bugs but hasnt fixed any problems) attempted a system restore (which my computer wouldn't let me complete either), reverted to a Last Known Good Configuration (twice) and attempted and failed to get into safe mode. Whenever I do my computer comes up with a long list of commands that look something like: "multi(0)disk(0)rdisk(0)partition(2)/windows/system32/..........." and then reboots itself.

It seems like it is on a huge downward spiral to death and I have no idea what to do!!! please help!!

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#2 Computer Pro

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Posted 10 August 2009 - 10:39 AM

This is a malware issue. Please wait for your topic to be transferred to a more appropriate forum which helps with malware removal.

Thank you for your patience regarding your issue,
Computer Pro
Computer Pro

#3 sarlypops

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Posted 10 August 2009 - 10:46 AM

thank you very much, just for future reference have i posted in the wrong place? where would have been better?

#4 boopme

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Posted 10 August 2009 - 10:48 AM

Hi, I am moving this to AII from XP...

Hello and welcome please run these next. If you have Spybot installed temporarily disable it.
Next run ATF:
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Please download ATF Cleaner by Atribune & save it to your desktop.
  • 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 browser click Firefox 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.
  • If you use Opera browser click Opera 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.

Next run MBAM (MalwareBytes):

NOTE: Before saving MBAM please rename it to zztoy.exe....now save it to your desktop.

Please download Malwarebytes Anti-Malware and save it to your desktop.

alternate download link 2

MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • 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 definition 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. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.
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

#5 sarlypops

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Posted 10 August 2009 - 11:07 AM

Hi I have done what you have said up until the installation of MBam but it hasnt automatically started nor will clicking on it launch it. (i renamed it to zztoy.exe aswell)

Edited by sarlypops, 10 August 2009 - 11:20 AM.


#6 boopme

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Posted 10 August 2009 - 11:24 AM

Please navigate to the MBAM folder located in the Program Files directory.

Locate MBAM.exe and rename it to winlogon.exe

Once renamed double click on the file to open MBAM and select Quick Scan

At the end of the scan click Remove Selected and then reboot.


Post the scan log. 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. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.


Next....
Please download Sophos Anti-rootkit & save it to your desktop.
alternate download link
Note: If using the vendor's download site you will be asked to register with MySophos so an email containing an activation link can be sent to your email address.

Be sure to print out and read the Sophos Anti-Rookit User Manual and Release Notes.
  • Double-click sar_15_sfx.exe to begin the installation, read the license agreement and click Accept.
  • Allow the default location of C:\Program Files\Sophos\Sophos Anti-Rootkit and click Install.
  • A message will appear "Sophos Anti-Rootkit was successfully installed. Click 'yes' to start it now".
  • Click Yes and allow the driver and its randomly named .tmp file (i.e. F.tmp) to load if asked.
  • If the scan did not start automatically, make sure the following are checked:
    • Running processes
    • Windows Registry
    • Local Hard Drives
  • Click Start scan.
  • Sophos Anti-Rootkit will scan the selected areas and display any suspicious files in the upper panel.
  • When the scan is complete, a pop-up screen will appear with "Rootkit Scan Results". Click OK to continue.
  • Click on the suspicious file to display more information about it in the lower panel which also includes whether the item is recommended for removal.
    • Files tagged as Removable: No are not marked for removal and cannot be removed.
    • Files tagged as Removable: Yes (clean up recommended) are marked for removal by default.
    • Files tagged as Removable: Yes (but clean up not recommended) are not marked for removal because Sophos did not recognize them. These files will require further investigation.
  • Select only items recommended for removal, then click "Clean up checked items". You will be asked to confirm, click Yes.
  • A pop up window will appear advising the cleanup will finish when you restart your computer. Click Restart Now.
  • After reboot, a dialog box displays the files you selected for removal and the action taken.
  • Click Empty list and then click Continue to re-scan your computer a second time to ensure everything was cleaned.
  • When done, go to Start > Run and type or copy/paste: %temp%\sarscan.log
  • This should open the log from the rootkit scan. Please post this log in your next reply. If you have a problem, you can find sarscan.log in C:\Documents and Settings\\Local Settings\Temp\.
Before performing an ARK scan it is recommended to do the following to ensure more accurate results and avoid common issues that may cause false detections.
  • Disconnect from the Internet or physically unplug you Internet cable connection.
  • Clean out your temporary files.
  • Close all open programs, scheduling/updating tasks and background processes that might activate during the scan including the screensaver.
  • Temporarily disable your anti-virus and real-time anti-spyware protection.
  • After starting the scan, do not use the computer until the scan has completed.
  • When finished, re-enable your anti-virus/anti-malware (or reboot) and then you can reconnect to the Internet.

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

#7 sarlypops

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Posted 10 August 2009 - 11:58 AM

hi, im now having some serious problems, i turned my computer off briefly and switched it on again but windows won't run!! everytime it gets to the "microsoft windows xp" screen it reboots and goes to the "we apologise for the inconveniece, but windows did not start successfully" screen and it keeps going round in circles.

#8 boopme

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Posted 10 August 2009 - 12:27 PM

Can you boot 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
.

then run Sophos.

If still no good... You may need to run this.
http://www.f-secure.com/en_EMEA/security/s...e-cd/index.html

Edited by boopme, 10 August 2009 - 12:29 PM.

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 sarlypops

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Posted 10 August 2009 - 12:54 PM

sorry, i already tried safe mode, i can't get into safe mode and i cant restore last known good configuration. is it time to reinstall windows?

#10 boopme

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Posted 10 August 2009 - 02:26 PM

Not an unwise decision to make. In some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired. Wiping your drive, reformatting, and performing a clean install of the OS or doing a factory restore removes everything and is the safest action but I cannot make that decision for you.

Reformatting a hard disk deletes all data. If you decide to reformat, you can back up all your important documents, data files and photos. The safest practice is not to backup any autorun.ini or .exe files because they may be infected. Some types of malware may disguise itself by adding and hiding its extension to the existing extension of files so be sure you take a close look at the full name. After reformatting, as a precaution, make sure you scan these files with your anti-virus prior to copying them back to your hard drive.

The best proceedure is a low level format. This completely wipes the drive. Then reinstall the OS.
Use the free version of Active@ KillDisk.
Or Darik's Boot And Nuke

The best sources of Information on this are

Michael Stevens Tech

Of course also feel free to ask anything on this in the XP forum. They'd be glad to help.

Edited by boopme, 10 August 2009 - 02:27 PM.

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




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