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Other => Viruses and worms => Topic started by: Jcrell81 on October 13, 2011, 07:18:15 PM

Title: Continuous Trojan Horse, Help
Post by: Jcrell81 on October 13, 2011, 07:18:15 PM
It started about a week ago.  It comes up randomly.  Sometimes it will or wont come up.  For example: it will come up if I open Internet Explorer or Mircosoft Word, or any other program on my computer, sometimes Skype as well.  Then it says do a boot-scan right after it disapears or I click off of it.

It does ot on its own. I have reported it false many times, but it keeps showing up and sometimes prevets things from opening right away because of it.  I have scan with diff softwares including Avast over and over and I do the boot-scan, but it keeps happening.

Does anyone know what this is or how to help?  I will provide more in-depth details if needed.  Also a side note: it all derives from one file that apparently can only be found in avast, because when I go to the actual folder, I cant find it or maybe I'm going to the wrong thing. Thanks in advance! 

But the all derive from the same source: C:\\Windows\assembly\tmp\U\80000032.@

Title: Re: Continuous Trojan Horse, Help
Post by: DavidR on October 13, 2011, 07:35:19 PM
I don't believe this is a false positive but the noaccess (if I remembered the name correctly) malware - This needs further analysis by a malware removal specialist:
Go to this topic http://forum.avast.com/index.php?topic=53253.0 (http://forum.avast.com/index.php?topic=53253.0) for information on Logs to assist in cleaning malware. Use the information about getting and using the logs and start your own new topic and attach the logs there, not in the LOGS topic.

Obviously you won't have to run the aswMBR tool again. From my limited knowledge of this tool it looks clean. So if you post the other OTL logs, etc. we can have someone take a look at them.
Title: Re: Continuous Trojan Horse, Help
Post by: essexboy on October 13, 2011, 10:02:53 PM
Correct it is either zero access or conserv.dll
Title: Re: Continuous Trojan Horse, Help
Post by: DavidR on October 13, 2011, 10:21:26 PM
Thanks for the correct name essexboy. Hopefully the OP won't be long in getting the OTL logs posted.
Title: Re: Continuous Trojan Horse, Help
Post by: Jcrell81 on October 14, 2011, 02:54:45 AM
Here is the Malwarebytes log:
Malwarebytes' Anti-Malware 1.51.2.1300
www.malwarebytes.org

Database version: 7938

Windows 6.1.7601 Service Pack 1
Internet Explorer 9.0.8112.16421

10/13/2011 8:51:40 PM
mbam-log-2011-10-13 (20-51-40).txt

Scan type: Quick scan
Objects scanned: 185154
Time elapsed: 3 minute(s), 15 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)

It will not let me upload the OTL file. Every time I place it in there for the Browse option and click post it clears it. It is under the allowed KB, I dont know why it wont post.
Title: Re: Continuous Trojan Horse, Help
Post by: DavidR on October 14, 2011, 03:32:58 AM
Use the Additional Options link in the Reply window, that will let you attach your OTL log file/s if they are under 200KB. If larger then they can be uploaded to a file share site:
- You can use a file sharing site such as Mediafire.com - Upload to http://www.mediafire.com/ and post the sharing link.
Title: Re: Continuous Trojan Horse, Help
Post by: Jcrell81 on October 14, 2011, 03:36:47 AM
Here is the OTL: http://www.mediafire.com/?kx12btmiywr6kwj
Title: Re: Continuous Trojan Horse, Help
Post by: DavidR on October 14, 2011, 03:41:50 AM
OK, you will be playing a bit of time zone ping pong, it is now 2:42am in the UK so essexboy will be in bed now. He should be back on-line later this evening.
Title: Re: Continuous Trojan Horse, Help
Post by: Jcrell81 on October 14, 2011, 04:53:31 AM
Ok. Thanks. I cant wait to hear the solution.
Title: Re: Continuous Trojan Horse, Help
Post by: essexboy on October 14, 2011, 08:26:25 PM
This is the conserve variant

Download and Install Combofix
 
Download ComboFix from one of the following locations:
Link 1  (http://download.bleepingcomputer.com/sUBs/ComboFix.exe)
Link 2 (http://www.forospyware.com/sUBs/ComboFix.exe)
 
VERY IMPORTANT !!! Save ComboFix.exe to your Desktop
 
* IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here  (http://forums.whatthetech.com/How_Disable_your_Security_Programs_t96260.html&pid=494216#entry494216)
(http://img.photobucket.com/albums/v706/ried7/NSIS_disclaimer_ENG.png)

(http://img.photobucket.com/albums/v706/ried7/NSIS_extraction.png)

Notes:
1. Do not mouse-click Combofix's window while it is running. That may cause it to stall.
2. Do not "re-run" Combofix. If you have a problem, reply back for further instructions.

Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now
Title: Re: Continuous Trojan Horse, Help
Post by: Jcrell81 on October 15, 2011, 01:12:02 AM
Everything seems to be fine now.  I will let you know if anything occurs in teh next few days or so. Thanks a lot. Do I need to continue to keep the Combo Fix on my desktop or can I delete it?  Also, is there any way to avoid this from happening again, since Avast couldn't stop it the first time?

Here's the Combo Fix Log: http://www.mediafire.com/?0qngicnb8nsmu6v
Title: Re: Continuous Trojan Horse, Help
Post by: DavidR on October 15, 2011, 01:15:20 AM
Give it a day or so and if no problem report back; then essexboy will give instructions on how to remove the tools and any other general advice.
Title: Re: Continuous Trojan Horse, Help
Post by: essexboy on October 15, 2011, 01:27:13 PM
Not really as to date this one bypasses all AV's

Could you open Avast
Select the virus chest
Right click in the blank space and select add
Navigate to c:\Qoobox\c:\windows\system32\consrv.dll
Select that file and then once it is in the chest
Right click and select send to virus labs
Fill in the form and select potential malware
Manually update Avast to send it


If all is well tomorrow - let me know and I will remove my tools
Title: Re: Continuous Trojan Horse, Help
Post by: Jcrell81 on November 05, 2011, 12:04:22 AM
Everything seems to be back to normal. The only thing I notice is that when run a full scan with Avast, it still pops as they found it even though I am no longer having any problems with anything.  I assume this is normal?  If so, I believe everything else is fine and I am ready to remove your wonderful tools.  :)
Title: Re: Continuous Trojan Horse, Help
Post by: DavidR on November 05, 2011, 01:17:26 AM
Do you mean you ars still getting these detections, in C:\\Windows\assembly\tmp\U\80000032.@ ?

Or is it something else, can you give more details, file name, location and malware name and location, etc.

You say you are doing a full scan is that the default Full System Scan or a custom one you created ?
Title: Re: Continuous Trojan Horse, Help
Post by: essexboy on November 05, 2011, 01:53:02 PM
Does it detect it within the qoobox folder only ?
Title: Re: Continuous Trojan Horse, Help
Post by: Jcrell81 on November 06, 2011, 04:45:04 PM
No I am no longer getting the detections. Its just when I run the standard full scan with Avast, it comes up as one of the threats when it is finished.

I have none of the same problems I had before you helped me, it just shows up in the Avast, ONLY when I run a quick or full scan.

Here are the files that show up - C:\Qoobox\Quarantine\C\Windows\System32\consrv.dll.vir
and the other is - C:\\Windows\assembly\tmp\kwrd.dll

Other than it showing up in the scan, as far as I can tell everything with my computer runs just fine.
Title: Re: Continuous Trojan Horse, Help
Post by: essexboy on November 06, 2011, 04:50:55 PM
Ok lets kill the one not in qoobox

Warning This fix is only relevant for this system and no other, using on another computer may cause problems

Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot

Run OTL
Title: Re: Continuous Trojan Horse, Help
Post by: Jcrell81 on November 07, 2011, 01:04:56 AM
Did everything you said.  Here is the OTL Log you asked for: http://www.megaupload.com/?d=IP470BWQ
Title: Re: Continuous Trojan Horse, Help
Post by: essexboy on November 07, 2011, 08:32:08 PM
How is the system bahaving now ?
Title: Re: Continuous Trojan Horse, Help
Post by: Jcrell81 on November 10, 2011, 12:15:57 AM
Well it is behaving fine. It has been, the only thing is that it showed u when I scanned, not that I was actually having a problem with it. I have not scanned since I have last done the process you told me to. Would you like me to scan with avast to see if it still shows up?
Title: Re: Continuous Trojan Horse, Help
Post by: essexboy on November 10, 2011, 09:47:51 PM
Yep give it a quick whirl and if you are happy I will remove my tools  ;D
Title: Re: Continuous Trojan Horse, Help
Post by: Jcrell81 on November 12, 2011, 11:33:27 PM
When I ran the quick scan with avast, it showed NO threats of anything, not even the two things it said before. I guess its all gone now. :)
Title: Re: Continuous Trojan Horse, Help
Post by: essexboy on November 12, 2011, 11:49:19 PM
Subject to no further problems   :)

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems 

Now the best part of the day ----- Your log now appears clean  :thumbsup:

A good workman always cleans up after himself so..The following will implement some cleanup procedures as well as reset  System Restore points:

Run OTLRemove ComboFix

Run OTL and hit the cleanup button.  It will remove all the programmes we have used plus itself. 

We will now confirm that your hidden files are set to that, as some of the tools I use will change that
(http://users.telenet.be/bluepatchy/miekiemoes/images/javaicon.gif)
Your Java is out of date. Older versions have vulnerabilities that malware can use to infect your system.
Please follow these steps to remove older version of Java components and upgrade the application.

 Upgrading Java:
SPRING CLEAN

To manually create a new Restore Point
 Now we can purge the infected ones
Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:
(http://img233.imageshack.us/img233/7729/mbamicontw5.gif)
Malwarebytes (http://www.malwarebytes.org/mbam-download.php).  Update and run weekly to keep your system clean

Download and install FileHippo update checker (http://www.filehippo.com/updatechecker/) and run it monthly it will show you which programmes on your system need updating and give a download link

It is critical to have both a firewall and anti virus to protect your system and to keep them updated. To keep your operating system up to date visit
To learn more about how to protect yourself while on the internet read our little guide  How did I get infected in the first place ? (http://www.geekstogo.com/forum/topic/225044-preventing-malware-and-safe-computing/)

Keep safe  :wave: