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Malware/Virus infection. win32ircbot.kow? win32.brontok? realteks; Downloader r-BPX?


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#1 hesiod76

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Posted 22 July 2009 - 12:27 PM

Hi, I'm very sure that I have a malware infection of some sort. I was browsing online and playing world of warcraft last night when I got a flurry of spybot warning messages about attempted changes to my registry (which I denied) before my browser (firefox) and World of Warcraft were suddenly shut down and my computer restarted. There was an active spybot warning open when my computer shutdown. My pc is running Windows XP professional edition and I think that it is on service pack 2.

When my computer restarted, I was unable to run firefox or IE. I could start them up, they would begin loading and then stopped before any program screen popped up. At some point after my computer initially restarted windows media player popped up, but I'm not sure if that was me launching it by accident (I was trying to find my anti-virus program in the start menu at the time) or if it was something else that caused it to launch. I received several messages from spybot search and destroy saying that realteks was trying to change the registry and I'm reasonably sure that I denied all of those requests. I also received a message from the windows firewall program that I had a worm called win32.brontok which was causing problems and needed to be blocked. The block and unblock options were grayed out, but the enable option was lit so I clicked on that. A program started installing at that point, but I canceled the installation. There is a possibility that this was a program that always tries to install itself when my computer starts up as I accidentally deleted a program that came with my computer and I haven't been able to find the disk required to reinstall it. The windows firewall program reappeared several minutes later with the same warning message. I again clicked on the enable button and it took me to an install screen for Perfect Defender 2009. This seemed like a fake anti-virus program so I immediately closed the window before (hopefully) anything got installed.

I ran mcafee (sp?) antivirus and it came up with 3 infected files, but unfortunately I can't remember their names at the moment. 2 of them were associated with a DIVX installer program that I've had on my computer for about a year without any problems and were labeled as being potentially harmful. The third file was identified as a trojan.

I tried running a spybot search and destroy scan but was unable to get it to start a scan. I restarted my computer in safe mode and was able to run a spybot scan. It came up with 3 infections. 1 was downloader-bpx, the second was win32.ircbot.kow and the third was something to the effect of windowsfirewallbypass. Unfortunately I didn't write the last one's name down. I clicked the fixproblem option with spybot search and destroy and claimed to have fixed the problem. I reran the spybot search and it came up clean. When I restarted my computer in normal mode to see if it was working properly I received several spybot notices about realteks trying to change my registry (which I denied) and the windows firewall popped up again warning about the win32.brontok worm (I closed these warnings).

I took 2 further steps to try and deal with the problem and I'm not sure if these are going to make things more complicated or not.
1.) I discovered that my version of spybot search and destroy was 1.5.2 while the current version was 1.6.2 so I uninstalled the old version and installed the new version.
2.) I tried to revert back to an older version of my registry that worked, but that was unsuccesful as well. I didn't have the option to select from any previous versions.

At this point, I stopped trying to do anything to try and "fix" things as I wasn't getting anywhere with my simple attempts. Additionally, I was no longer able to load any webpages in firefox (while running in safe mode) to try and find any further suggestions.

Can you please help me? What do I need to do now? I have access to a clean computer, but I'm not sure if this malware has locked me out of installing and running programs on my infected computer.
Thanks,
hesiod76

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#2 garmanma

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Posted 22 July 2009 - 08:56 PM

If you have access to a non-infected computer, you can burn these tools to a CD or download to a flash drive
First try mbam
Be sure to disable Spybot's Teatimer function


The process of cleaning your computer may require you to temporarily disable some security programs. If you are using SpyBot Search and Destroy, please refer to Note 2 at the bottom of this page.

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.

Note 2:
-- MBAM may make changes to your registry as part of its disinfection routine. If you're using other security programs that detect registry changes (like Spybot's Teatimer), they may interfere with the fix or alert you after scanning with MBAM. Please disable such programs until disinfection is complete or permit them to allow the changes. To disable these programs, please view this topic: How To Temporarily Disable Your Anti-virus, Firewall And Anti-malware Programs
---------------------------------------


Some types of malware will disable Malwarebytes Anti-Malware and other security tools. If MBAM will not install, try renaming it first.
  • Right-click on the mbam-setup.exe file file and rename it to mysetup.exe.
  • Double-click on mysetup.exe to start the installation.
  • If that did not work, then try renaming and changing the file extension. <- click this link if you do not see the file extension
  • Right-click on the mbam-setup.exe file, rename it to mysetup and change the .exe extension to .scr, .com, .pif, or .bat.
  • Then double-click on mysetup.scr (or whatever extension you renamed it) to begin installation.
If after installation, MBAM will not run, open the Malwarebytes' Anti-Malware folder in Program Files.
  • Right-click on mbam.exe, rename it to myscan.exe.
  • Double-click on myscan.exe to launch the program.
  • If that did not work, then try renaming and change the .exe extension in the same way as noted above.
  • Double-click on myscan.scr (or whatever extension you renamed it) to launch the program.
If using Windows Vista, refer to How to Change a File Extension in Windows Vista.

Be sure to update MBAM through the program's interface (preferable method) or manually download the definition updates and just double-click on mbam-rules.exe to install. Then perform a Quick Scan in normal mode and check all items found for removal. Don't forgot 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 report in your next reply.

Note: MBAM uses Inno Setup instead of the Windows Installer Service to install the program. If installation fails in normal mode, try installing in safe mode. Doing this is usually not advised as MBAM is designed to be at full power when running in normal mode and loses some effectiveness for detection & removal when used in safe mode. For optimal removal, normal mode is recommended so it does not limit the abilities of MBAM. Therefore, after completing a scan it is recommended to uninstall MBAM, then reinstall it in normal mode and perform another Quick Scan.

Edited by garmanma, 22 July 2009 - 08:57 PM.

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#3 hesiod76

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Posted 23 July 2009 - 12:50 AM

Hi Garmanma,
First, thank you very much for the help you are providing.

I had to copy the files onto my desktop using safemode, but I was able to run the program and download the update using normal mode. Below is a copy of the log:

Malwarebytes' Anti-Malware 1.39
Database version: 2484
Windows 5.1.2600 Service Pack 2

7/23/2009 1:38:17 AM
mbam-log-2009-07-23 (01-38-17).txt

Scan type: Quick Scan
Objects scanned: 101519
Time elapsed: 6 minute(s), 1 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: 3

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:\documents and settings\Aaron\application data\pdinstall.exe (Rogue.PerfectDefender) -> Quarantined and deleted successfully.
c:\documents and settings\Aaron\application data\Google\Shell32.dll (Trojan.FakeAlert) -> Quarantined and deleted successfully.
c:\documents and settings\Aaron\application data\Google\yifjx15914223.exe (Trojan.FakeAlert) -> Quarantined and deleted successfully.


Thanks again for the help,
-Hesiod76

#4 garmanma

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Posted 23 July 2009 - 03:37 PM

Update mbam and run a FULL scan
Please post the results

Then run ATF and SAS

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

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

SAS,may take a long time to scan
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 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 (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 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".

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.
--------------------------------

Follow that up with a Dr Web CureIt scan


Please download Dr.Web CureIt, the free version & save it to your desktop. DO NOT perform a scan 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".

Scan with Dr.Web CureIt as follows:
  • Double-click on launch.exe to open the program and click Start. (There is no need to update if you just downloaded the most current version
  • Read the Virus check by DrWeb scanner prompt and click Ok where asked to Start scan now? Allow the setup.exe to load if asked by any of your security programs.
  • The Express scan will automatically begin.
    (This is a short scan of files currently running in memory, boot sectors, and targeted folders).
  • If prompted to dowload the Full version Free Trial, ignore and click the X to close the window.
  • If an infected object is found, you will be prompted to move anything that cannot be cured. Click Yes to All.
  • When complete, click Select All, then choose Cure > Move incurable.
    (This will move any detected files to the C:\Documents and Settings\userprofile\DoctorWeb\Quarantine folder if they can't be cured)
  • Now put a check next to Complete scan to scan all local disks and removable media.
  • In the top menu, click Settings > Change settings, and UNcheck "Heuristic analysis" under the "Scanning" tab, then click Ok.
  • Back at the main window, click the green arrow "Start Scanning" button on the right under the Dr.Web logo.
  • When the scan is complete, a message will be displayed at the bottom indicating if any viruses were found.
  • Click "Yes to all" if asked to cure or move the file(s) and select "Move incurable".
  • In the top menu, click file and choose save report list.
  • Save the DrWeb.csv report to your desktop.
  • Exit Dr.Web Cureit when done.
  • Important! Reboot your computer because it could be possible that files in use will be moved/deleted during reboot.
  • After reboot, post the contents of the log from Dr.Web in your next reply. (You can use Notepad to open the DrWeb.cvs report)

Mark
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Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
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#5 hesiod76

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Posted 24 July 2009 - 10:27 PM

Hi Garmanma, it took nearly forever, but I've finished doing all of the scans that you recommended :>
I should note, that the ill effects that prompted me to initially post disappeared after the initial mbam scan.


The full mbam scan log:

Malwarebytes' Anti-Malware 1.39
Database version: 2492
Windows 5.1.2600 Service Pack 2

7/24/2009 1:01:51 AM
mbam-log-2009-07-24 (01-01-51).txt

Scan type: Full Scan (C:\|E:\|)
Objects scanned: 478469
Time elapsed: 1 hour(s), 25 minute(s), 35 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)







The SAS scan log:

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

Generated 07/24/2009 at 03:50 AM

Application Version : 4.26.1006

Core Rules Database Version : 4015
Trace Rules Database Version: 1955

Scan type : Complete Scan
Total Scan Time : 02:33:45

Memory items scanned : 218
Memory threats detected : 0
Registry items scanned : 5554
Registry threats detected : 0
File items scanned : 46657
File threats detected : 0








The Dr.Web Cure It log:

vs85um.exe\U-M/umtools85/Fport.exe;C:\Programs Downloaded from Internet\vs85um.exe;Program.FPort.20;;
vs85um.exe;C:\Programs Downloaded from Internet;Archive contains infected objects;Moved.;
A0057805.exe\U-M/umtools85/Fport.exe;C:\System Volume Information\_restore{46DE8921-1D39-44D2-A9E9-64119261F211}\RP624\A0057805.exe;Program.FPort.20;;
A0057805.exe;C:\System Volume Information\_restore{46DE8921-1D39-44D2-A9E9-64119261F211}\RP624;Archive contains infected objects;Moved.;
Fport.exe;C:\VSINSTALL.85\umtools85;Program.FPort.20;Moved.;
1419c.msi\stream001;C:\WINDOWS\Installer\1419c.msi;Probably Trojan.Packed.189;;
1419c.msi;C:\WINDOWS\Installer;Archive contains infected objects;Moved.;



I'm not sure if this detail helps you or not... The vs85um.exe file is the University of Michigan version of McAfee antivirus.


What next?

Thanks for the help,
-Hesiod76

#6 garmanma

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Posted 25 July 2009 - 07:32 PM

Unless you are experiencing other problems, you're good to go

If there are no longer signs of malware then please....

Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been 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.
  • 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.
Mark
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#7 hesiod76

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Posted 26 July 2009 - 02:32 AM

Thank you very much for all your help. I've set my restore point and hopefully I'll avoid any further malware attacks for awhile.
-Hesiod76

#8 garmanma

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Posted 26 July 2009 - 04:14 PM

Tips to protect yourself against malware and reduce the potential for re-infection:
• "Simple and easy ways to keep your computer safe".
• "How did I get infected?, With steps so it does not happen again!".
• "Hardening Windows Security - Part 1 & Part 2".
• "IE Recommended Minimal Security Settings" - "How to Secure Your Web Browser".

• Avoid gaming sites, underground web pages, pirated software, crack sites, and peer-to-peer (P2P) file sharing programs. They are a security risk which can make your computer susceptible to a smrgsbord of malware infections, remote attacks, exposure of personal information, and identity theft. Many malicious worms and Trojans spread across P2P file sharing networks, gaming and underground sites. Users visiting such pages may see innocuous-looking banner ads containing code which can trigger pop-up ads and 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. Read P2P Software User Advisories and Risks of File-Sharing Technology.

Edited by garmanma, 26 July 2009 - 04:14 PM.

Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
Become a BleepingComputer fan: Facebook and Twitter




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