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Trojan.Dropper.BCMiner and Rootkit.0Access removal from Windows 7


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#16
Benkle

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Hi.
All seems to have worked as expected.

OTL ran and log file attached.

Combofix downloaded and it ran this time, log and combofix.txt attached. One thing though after i ran combofix it rebooted and the items (exploere window and firefox) on my startbar wouldnt work saying it was performing an operation in the registry that was marked for deletion. I restarted again and that error is not appearing anymore.

Thanks for the info about Avast too, I used to have it but found that it just kept having things popup on my desktop and never seemed to be catching anything so I left it off this pc. At least i learnt from my mistake.

I think my router has a firewall, do you think I need more than that?

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#17
RKinner

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It looks good. I think we are done. You are right that your router has a firewall. It's about the same as the windows firewall. It keeps things out but doesn't worry about stuff that leaves. Online Armor also worries about things that are leaving so it can give you an early warning of an infection but it's not really necessary.


You can uninstall or delete any tools we had you download and their logs.
To uninstall combofix, copy the next line:

"c:\users\Ben\Desktop\ComboBreaker.exe" /Uninstall

Start, All Programs, Accessories then right click on Command Prompt and Run As Administrator.
then right click, Paste, then hit Enter.

OTL has a cleanup tab if you go there it will remove itself and its logs.

To hide hidden files again (OTL may do it for you):

Vista or Win7

# Open the Control Panel menu and click Folder Options.
# After the new window appears select the View tab.
# Remove the check in the checkbox labeled Display the contents of system folders.
# Under the Hidden files and folders section select the radio button labeled Do not Show hidden files and folders.
# Check the checkbox labeled Hide protected operating system files.
# Press the Apply button and then the OK button and exit My Computer.

Also make sure you have the latest versions of any adobe.com products you use like Shockwave, Flash or Acrobat.

Whether you use adobe reader, acrobat or fox-it to read pdf files you need to disable Javascript in the program. There is an exploit out there now that can use it to get on your PC. For Adobe Reader: Start, All Programs, Adobe Reader, Edit, Preferences, Click on Javascript in the left column and uncheck Enable Acrobat Javascript. OK Close program. It's the same for Foxit reader except you uncheck Enable Javascript Actions.

To help keep your programs up-to-date you should download and run the UpdateChecker:
http://www.filehippo.../updatechecker/
(You don't need to download Betas and if there is a program you don't use you can just uninstall it rather than update it. Exception is MSN messenger which appears to be part of Windows.)
If you get a blocked program notice after installing updatechecker then change it to not run at start then manually run it once a week.
Seems to work best if Firefox is the default browser. You can also try Secunia PSI http://secunia.com/v...l/download_psi/ Same kind of info. You don't need both.
If you use Firefox then get the AdBlock Plus Add-on. WOT (Web of Trust) is another you might want to try.
The equivalent to AdBlock Plus for IE is called Simple Adblock and you should install it too: http://simple-adblock.com/
The free version only blocks 200 ads a day so another reason to use Firefox or Chrome.

If Firefox is slow loading make sure it only has the current Java add-on. Then download and run Speedy Fox.
http://www.crystalidea.com/speedyfox . You can run it any time that Firefox seems slow.

Be warned: If you use Limewire, utorrent or any of the other P2P programs you will almost certain be coming back to the Malware Removal forum. If you must use P2P then submit any files you get to http://virustotal.com before you open them.


If you have a router, log on to it today and change the default password! If using a Wireless router you really should be using encryption on the link. Use the strongest (newest) encryption method that your router and PC wireless adapter support especially if you own a business. See http://www.king5.com...-120637284.html and http://www.seattlepi...ted-1344185.php for why encryption is important. If you don't know how, visit the router maker's website. They all have detailed step by step instructions or a wizard you can download.

Special note on Java. Currently there is an exploit out that works on all Java Version 7 software so we are recommending that if you do not visit websites that absolutely require Java that you turn it off in your browser per the instructions in http://www.geekstogo...ur-web-browser/
If you use websites that require Java and you trust them then we recommend that you use either Firefox with the NoScript add-on or Chrome with the ScriptNo add-on and avoid IE. NoScript/ScriptNo will turn off Java and Javascript on all websites you visit except for those that you specifically approve. More info on the exploit is here: http://krebsonsecuri...-java-exploit/. There is now a new Java 7 update 7 which supposedly fixes the exploit. If you use Java make sure you have it or later and that all old versions have been uninstalled.

My help is free but if you wish to show your appreciation, please donate to Kwiaht instead of me. It's a local environmental organization that I volunteer with: http://www.kwiaht.org/donate.htm
(The name means something like "clean place" in one of the local native-American dialects)
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#18
Benkle

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Thanks for all your help, I will definitely use some of the tools suggested in your post.

Ben.
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#19
RKinner

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I forgot to have you fix the broken services that Farbar found.

Download ESET's Service Repair http://kb.eset.com/l...vicesRepair.exe and Save it then right click on it and Run As Admin.

then let's run Farbar again:


Download, Save and Run (win 7 or Vista => Right click and Run as Admin.) farbar service scanner

Posted Image

Tick "All" options.
Press "Scan".
It will create a log (FSS.txt) in the same directory the tool is run.

Please copy and paste the log to your reply.

Ron
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#20
Benkle

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Oh right, here is the log

Ben.

Attached Files

  • Attached File  FSS.txt   2.61KB   29 downloads

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#21
RKinner

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Did you run ESET's Service Repair first?
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#22
Benkle

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Yes I ran it first.

I tried it again after disabling avast! (it said it had reinstalled multiple services and i had to reboot) but when I did the FSS log is still the same.

Should i try in safe mode?

Ben.

Attached Files

  • Attached File  FSS.txt   2.61KB   28 downloads

Edited by Benkle, 01 September 2012 - 09:18 PM.

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#23
RKinner

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Download and Save the bits.reg file.

Right click on it and Merge. Do you get an error?

If no error, Run Farbar again.
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#24
Benkle

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No error given, new log attached.

Ben.

Attached Files

  • Attached File  FSS.txt   2.21KB   30 downloads

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#25
RKinner

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My BITS is also set for Demand (Manual) so I think it's OK. This is part of Windows Updates. Is that working?

Any other problems?

I will be away from the computer until noon today (Pacific time).
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#26
Benkle

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It all seems to be working fine, but when I try and run windows update I get:
Code 80246008 Windows update encountered an unknown error.

Ben.
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#27
RKinner

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Try the fixit on

http://support.microsoft.com/kb/836941
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#28
Benkle

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Hi,
It couldn't start as the service didn't exist, tried your registry entry again and it didn't work, eventually found the answer here:
http://www.sevenforu...dows-7-fix.html

Seems like BITS is not a value you can modify unless you run regedit from a system account (Step V).
Windows update seems to be working again now.

I haven't noticed any other issues, thanks again for your help.

Ben.

Edited by Benkle, 03 September 2012 - 03:49 AM.

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