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Vundo/Virtumonde and spawning infections


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3 replies to this topic

#1 Zoidyn

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Posted 19 January 2009 - 02:51 AM

Got tagged by Trojan.Vundo early last week. Ran MBAM, AVG and Spybot which seemed to clean it up ... we thought. Since then I've been battling one infection after another - as soon as I've got one cleaned up, another one appears. I've seen FakeAlert, Trojan.Vundo (and variants), Trojan.Virtumonde, Win32/Cryptor, a Rootkit Agent, and more. Browser redirects, ad popups, computer spontaneously logging off then shutting down, computer freezing, all sorts of performance issues. I discovered Trojan.Vundo set up a job in Task Scheduler. I've added Windows Defender, Rootkit Revealer and SuperAntiSpyware to my arsenal. Windows Defender reported access to firewall UDP ports 445, 137, 138 and 139 (all should be blocked, right?).

Running Windows XP Media Center, we primarily use Firefox 3.0, and IE7 only when we absolutely have to. I work in the tech field, and knowing how easily infections can occur, I keep this machine and our network locked down and maintained pretty tightly. Something slipped around all our safeguards and now we're whapped hard. I've reached the end of my know-how, and am hoping you can help ... I really don't want to do a system restore!

The weird thing is, most of these problems only appear under my son's profile (registry and files), and only seem to get triggered during his login sessions, especially when he's browsing the web. My profile and login sessions have been relatively clean, but it could just be a matter of time before my account too becomes infested.

Thanks in advance for your assistance.

Edited by Zoidyn, 19 January 2009 - 02:53 AM.


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#2 garmanma

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Posted 19 January 2009 - 09:48 AM

Let's see a mbam log. Be sure to disable Spybot's Teatimer function
-------------------------------------

Please reboot the computer
Open MBAM and click Update tab, select Check for Updates,when done
click Scanner tab,select FULL scan
After scan click Remove Selected, Post new scan log for review
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#3 Zoidyn

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Posted 19 January 2009 - 09:57 PM

Here's the MBAM log, which appears clean.

Malwarebytes' Anti-Malware 1.33
Database version: 1668
Windows 5.1.2600 Service Pack 3

1/19/2009 6:54:50 PM
mbam-log-2009-01-19 (18-54-50).txt

Scan type: Full Scan (C:\|)
Objects scanned: 341110
Time elapsed: 2 hour(s), 51 minute(s), 52 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)

#4 garmanma

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Posted 20 January 2009 - 03:47 PM

Let's see if this will catch it
---------------------


1. Please print these instructions as they will be needed later when Internet access is not available.

2. Save these instructions in word or notepad to the desktop where they can be easily found.

3. Download Vundo Fix:
http://www.atribune.org/ccount/click.php?id=4
and save it to your desktop.

4. When it has completed downloading, double-click VundoFix.exe to run it.

5. Click the Scan for Vundo button.

6. Once it's done scanning, click the Remove Vundo button.

7. You will now receive a prompt asking if you want to remove the files, click the YES button. Once you click yes, your desktop will go blank as it starts removing Vundo.

8. When completed, it will prompt that it will shutdown your computer, click the OK button.

9. When the computer has shutdown, turn your computer back on.

The WinFixer and Vundo infection should now be removed from your computer.



If you are still having a problem then please perform the following steps:

Note: This step should only be used if the instructions in the previous steps did not remove the infection:

1. Download VirtumundoBegone:
http://www.bleepingcomputer.com/malware-re...%3C%DL2_LNK%%3E

and save it to your desktop.

2. Now reboot into Safe Mode.

1. This can be done tapping the F8 key as soon as you start your computer

2. You will be brought to a menu where you can choose to boot into safe mode.

3. Select safe mode with networking using your arrow keys on the keyboard and then press enter.

4. When you computer reaches the desktop make sure you log in as the same user which you had performed the previous steps,

3. Once you are logged into safe mode, double-click VirtumundoBeGone.exe file you just downloaded and follow the instructions.

4. Exit when it has finished, and reboot back to normal mode.

The WinFixer and Vundo infection should now be removed from your computer. Conclusion

If you are still having problems with your computer after completing these instructions, then please follow the steps outlined in the topic linked below:

Preparation Guide For Use Before Posting A Hijackthis Log

http://www.bleepingcomputer.com/forums/t/34773/preparation-guide-for-use-before-using-malware-removal-tools-and-requesting-help/
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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