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Infected with something nasty...


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#1 VGMD

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Posted 05 May 2009 - 01:07 AM

Hi guys,

I believe my computer has been infected with malware and I would appreciate help removing it. Here's what has happened to me so far. When I turned on my computer, I noticed that my firefox was running extremely slowly at first. I visited a site that I do regularly, and when I was done I closed firefox. Then a pop-up appeared seemingly from windows stating that it wanted to enable phishing detection, so I clicked ok. I thought the fact that it was the first time it had ever popped up was suspicious, but it looked genuine. Now whenever I try to run any program, such as firefox, an error message pops up saying that The instruction at "0x01a654eb" referenced memory at "0x000004fc". The memory could not be "read". I am running spybot - search & destroy for the second time already. The first time I ran it, it picked up quite a few malwares like virtumonde, win32, smitfraud, and DNSFlush. While I was running it, several things happened. First, my background suddenly disappeared and now it's just a blue screen. My icons are still there, though. Then, about halfway through, all the problems that spybot found were lost, and when I clicked on one of the entries it said something to the effect that there was not enough memory. Then spybot crashed. This second time I'm running it seems to be more successful -- it's almost done. Other symptoms include ads popping up and everything is running extremely slowly. Any help would be greatly appreciated, and the sooner the better. I'm getting a bad feeling that this virus is corrupting memory.

Thanks!
Greg

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#2 quietman7

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Posted 05 May 2009 - 08:01 AM

Please download ATF Cleaner by Atribune & save it to your desktop. alternate download link
  • 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.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Please download and scan with Dr.Web CureIt.
Follow these Instructions for scanning with Dr.WebCureIt in "safe mode".
If you cannot boot into safe mode, then perform your scan in normal mode. Please be patient as this scan could take a long time to complete.
-- Post the log in your next reply.

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
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.
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#3 VGMD

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Posted 05 May 2009 - 05:41 PM

Hi quietman,

When I turned on my computer, this message appeared on the blue welcome screen. The title said Windows - No Disk and the body read "Exception Processing Message c0000013 Parameters 75b6bf9c 4 75b6bf9c 75b6bf9c". I could cancel, try again, or continue. I clicked continue and it popped up 5 more times, then finally disappeared. Then my normal desktop background appeared, but there were no icons or taskbar. Nothing happened for a good five minutes, so I turned the computer off manually and tried again. That No Disk message popped up again, but after I continued Spybot Search & Destroy started automatically scanning because I ran it last night. However, there are still no icons or taskbar. I'll post an update once spybot finishes.

Edited by VGMD, 05 May 2009 - 05:42 PM.


#4 VGMD

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Posted 05 May 2009 - 08:56 PM

I successfully ran ATF Cleaner with no problems. Then I downloaded Dr. Web CureIt and proceeded to scan in safe mode. The express scan worked and deleted 5 infections. However, when I did the complete scan, it crashed at about a tenth of the way through. I started it again, but there was no change. It still crashed. I'm still in safe mode, and I was wondering what to do next. Should I just skip CureIt and try MBAM?

UPDATE: I rebooted out of safe mode, but once again my desktop is blank -- no icons, no start menu. But this time, after about a minute, it took me back to the welcome screen with a prompt to select a username. There was only one, HP_Administrator, the one I normally use (by the way, I don't usually need to select; it just automatically loads HP_Admin). When I click the username, it goes back to the blank desktop, and then immediately logs off and I'm returned to the welcome screen. I'm thinking safe mode is the only way I can access my computer now...

Edited by VGMD, 05 May 2009 - 10:36 PM.


#5 quietman7

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Posted 06 May 2009 - 08:21 AM

Scanning with Malwarebytes Anti-Malware in safe or normal mode will work but removal functions are not as powerful in safe mode. MBAM is designed to be at full power when malware is running so safe mode is not necessary when using it. In fact, it loses some effectiveness for detection & removal when used in safe mode because the program includes a special driver which does not work in safe mode. Further, scanning in safe mode prevents some types of malware from running so it may be missed during the detection process. For optimal removal, normal mode is recommended so it does not limit the abilities of MBAM. If you cannot use or complete a scan in normal mode, then try performing a Quick Scan in "safe mode". After reboot, click the Logs tab and copy/paste the contents of the new report in your next reply.
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#6 VGMD

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Posted 06 May 2009 - 05:45 PM

I tried booting into safe mode today to run a quick scan with MBAM, but now I can't even log in with safe mode. It shows the safe mode background for a few seconds like it's about to load my icons and stuff, then it reverts back to the welcome screen and every time I try to log in with one of the usernames it immediately logs me back out. Is there anything more I can do at this point short of reformatting?

#7 quietman7

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Posted 06 May 2009 - 09:23 PM

If you cannot bootup or logon in normal or safe mode, then your options are limited. See:Another option is to create a Bootable CD:These are links to Anti-virus vendors that offer free LiveCD or Rescue CD files that are used to boot from for repair of unbootable and damaged systems, rescue data, scan the system for virus infections. Burn it as an image to a disk to get a bootable CD. All (except Avira) are in the ISO Image file format. Avira uses an EXE that has built-in CD burning capability.If you are not sure how to burn an image, please read How to write a CD/DVD image or ISO. If you need a FREE utility to burn the ISO image, download and use ImgBurn.
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#8 VGMD

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Posted 06 May 2009 - 10:53 PM

Hurrah! I somehow managed to regain control of my computer. I used system recovery and it worked. Anyways, after reinstalling drivers, I immediately scanned with MBAM. Here is the log.


-----


Malwarebytes' Anti-Malware 1.36
Database version: 2085
Windows 5.1.2600 Service Pack 2

5/6/2009 8:43:42 PM
mbam-log-2009-05-06 (20-43-42).txt

Scan type: Quick Scan
Objects scanned: 83467
Time elapsed: 3 minute(s), 9 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 1
Folders Infected: 1
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:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
C:\Documents and Settings\HP_Administrator\Application Data\pidle (Trojan.Agent) -> Quarantined and deleted successfully.

Files Infected:
(No malicious items detected)






EDIT: By the way, I am no longer experiencing any symptoms like pop-ups, lag, or error messages.

Edited by VGMD, 06 May 2009 - 11:01 PM.


#9 quietman7

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Posted 07 May 2009 - 08:27 AM

:thumbsup:

Now rescan again with Malwarebytes Anti-Malware but this time perform a Full Scan in normal mode and check all items found for removal. Don't forgot to check for database definition updates through the program's interface (preferable method) before scanning and to reboot afterwards. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. When done, click the Logs tab and copy/paste the contents of the new report in your next reply.
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#10 VGMD

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Posted 07 May 2009 - 10:10 PM

Here you go.

------------------

Malwarebytes' Anti-Malware 1.36
Database version: 2090
Windows 5.1.2600 Service Pack 2

5/7/2009 7:32:57 PM
mbam-log-2009-05-07 (19-32-57).txt

Scan type: Full Scan (C:\|D:\|)
Objects scanned: 281670
Time elapsed: 1 hour(s), 57 minute(s), 34 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)


--------------------------------------


Does this mean I'm in the clear?

#11 quietman7

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Posted 08 May 2009 - 06:32 AM

How is your computer running now? Are there any more reports/signs of infection?
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#12 VGMD

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Posted 08 May 2009 - 08:48 AM

So far so good. I'm not experiencing any of the symptoms that I was before. But I was wondering if the virus or the system restore or using these antivirus programs could have done something to my registry? I can't seem to open my G: drive when I put an SD card in the slot. Basically the My Computer window freezes and I have to end the program. Could explorer.exe have been damaged/deleted?

#13 quietman7

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Posted 08 May 2009 - 08:53 AM

The inability to open drives and partitions is a common sign of a USB flash drive infection.

Please insert your flash drive before we begin. Hold down the Shift key when inserting the drive until Windows detects it to bypass the autorun feature and keep autorun.inf from executing automatically.

Then download Flash_Disinfector by sUBs and save it to your desktop.
  • Double-click Flash_Disinfector.exe to run the tool and follow any prompts that may appear.
  • If asked to insert your USB flash drive and other removable drives, please do so and allow the utility to clean up them as well.
  • Hold down the Shift key when inserting the drive until Windows detects it to keep autorun.inf from executing if it is present.
  • Wait until it has finished scanning and then exit the program.
  • Reboot your computer when done.
Note: As part of its routine, Flash Disinfector will create a hidden folder named autorun.inf in each partition and every USB drive that was plugged in when you ran it. Do not delete this folder...it will help protect your drives from future infection by keeping the autorun file from being installed on the root drive and running other malicious files.

Alternatively, you can download and use Panda USB Vaccine. Computer Vaccination will prevent any AutoRun file from running, regardless of whether the removable device is infected or not. USB Vaccination disables the autorun file so it cannot be read, modified or replaced by malicious code. The Panda Resarch Blog advises that once USB drives have been vaccinated, they cannot be reversed except with a format. If you do this, be sure to back up your data files first or they will be lost during the formatting process.
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#14 VGMD

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Posted 09 May 2009 - 01:45 AM

Unfortunately this didn't fix my problem. I don't think it's virus related. It's not such a big deal though because I don't normally put SD cards into my computer. I was worried that it would freeze if I used a flash drive, but it doesn't. I did some research and a lot of people seem to have the same problem with the 4 gig SD cards. As long as flash drives work, though, I'm happy. But thank you so much for your help, I really appreciate everything you've done for me. I'll monitor my computer for a few days and let you know if anything comes up. Thanks again!

#15 quietman7

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Posted 09 May 2009 - 07:01 AM

You're welcome.

If there are no more problems other than that, 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 Users can refer to these links: Create a New Restore Point and Disk Cleanup.

Tips to protect yourself against malware and reduce the potential for re-infection:Keep Windows and Internet Explorer current with all critical updates from Microsoft which will patch many of the security holes through which attackers can gain access to your computer. If you're not sure how to do this, see Microsoft Update helps keep your computer current.

Avoid gaming sites, porn sites, pirated software, cracking tools, keygens, and peer-to-peer (P2P) file sharing programs. They are a security risk which can make your computer susceptible to a smörgåsbord of malware infections, remote attacks, exposure of personal information, and identity theft. Malicious worms, backdoor Trojans IRCBots, and rootkits spread across P2P file sharing networks, gaming, porn and underground sites. Users visiting such pages may see innocuous-looking banner ads containing code which can trigger pop-up ads and malicious Flash ads that install viruses, Trojans, and spyware. Ads are a target for hackers because they offer a stealthy way to distribute malware to a wide range of Internet users. The best way to reduce the risk of infection is to avoid these types of web sites and not use any P2P applications.Keeping Autorun enabled on USB (pen, thumb, jump) and other removable drives has become a significant security risk due to the increasing number of malware variants that can infect them and transfer the infection to your computer. To learn more about this risk, please read:Many security experts recommend disabling this feature as a method of prevention. Microsoft recommends doing the same.

...Disabling Autorun functionality can help protect customers from attack vectors that involve the execution of arbitrary code by Autorun when inserting a CD-ROM device, USB device, network shares, or other media containing a file system with an Autorun.inf file...

Microsoft Security Advisory (967940): Update for Windows Autorun
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