Help: BitcoinMiner-CA Trojan

Viruses and worms
1

Hi!
Two days ago I got a trojan infection. Avast regularly detects wuaudit.exe as a bitcoin miner and quarantines it. I’ve been trying to remove it multiple times with Malverbyte’s Anti-Rootkit, and Anti-Malware as well as with Avast to no avail. After removal it always relocates itself in C:Users/János/AppData/Local/Temp/iswizard. Deleting this folder doesn’t help either as it pops up right after removal.
It looks like the same problem user ggggg had today: http://forum.avast.com/index.php?topic=129465.0
I’d be eternally grateful if somebody could help me with this issue.

Here are my logs:

2

Let me know if this stops the alerts

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

[*]Under the Custom Scans/Fixes box at the bottom, paste in the following

https://dl.dropbox.com/u/73555776/OTL_Fix.GIF


:Commands
[CREATERESTOREPOINT]

:OTL
O2 - BHO: (no name) - {7825CFB6-490A-436B-9F26-4A7B5CFC01A9} - No CLSID value found.
O4 - HKU\S-1-5-21-1196099747-4077872981-3641871310-1002..\Run: [tsiVideo] C:\windows\SysWOW64\rundll32.exe C:\Users\JNOS~1\AppData\Local\Temp\\tsiVi132.dll,start File not found

:Files
C:Users/János/AppData/Local/Temp/iswizard
C:\Users\JNOS~1\AppData\Local\Temp\_MEI55842

:Commands
[resethosts]
[emptytemp]
[Reboot]

[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.

3

Thank you for your time!
Here is the requested log:

4

Have the alerts ceased ?

5

I haven’t gotten an alert since the fix, though I haven’t used the system extensively.
However the files haven’t been relocated in the iswizard folder, so that’s good.
Do you think we are in the green?
Also, can I delete the iswizad folder? Though it’s empty it’s still there.

6

yes delete the folder. When you are happy let me know and I will tidy up

7

I think the system is clean. What next?

8

Subject to no further problems :slight_smile:

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 OTL and hit the cleanup button. It will remove all the programmes we have used plus itself.
Run AdwCleaner and press Uninstall
Delete AswMBR from the desktop

Clear Restore Points

Go Start > All Programmes > Accessories > System tools
Right click Disc Cleanup and select run as administrator
When it pops up at the first prompt select OK after it has done some calculations the tabs will appear
Select More Options tab
Press Sytem Restore and Shadow Copies Cleanup button

https://dl.dropbox.com/u/73555776/disc%20clean.JPG

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.

Update and run weekly to keep your system clean

Download and install FileHippo update checker and run it monthly it will show you which programmes on your system need updating and give a download link

If you use on-line banking then as an added layer of protection install Trusteer Rapport

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
[*]Microsoft Windows Update

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 ?Keep safe :wave:

9

Thank you for your help, I really appreciate it.
I will make sure to do everything I can to avoid further infections.
Have a nice day and good virus hunting!