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Possible malware on wifes computer


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#16
RKinner

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Start, Programs, Accessories, right click on Command Prompt and Run As Admin.
msconfig
Go to Services tab and click on the box to hide Microsoft Services then uncheck
everything that remains. Go to Startup tab and uncheck everything. OK and
reboot.

Run OTL, Quickscan and let's see if the
PRC - File not found
line is still there. If it's gone then go back and turn on a few and reboot until you find which causes it. If it's still there then try unhiding the MS stuff and try to turn them off too.
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#17
HunterAce

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Finally found it. NSWRTMON.EXE .. that is the item causing the file not found error.
The oddity is that the file is actually in the path listed in msconfig.

I left it removed and rescanned with OTL. The scan is attached. Let me know if you think I should do anything else.

Attached Files

  • Attached File  OTL.Txt   79.59KB   25 downloads

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#18
RKinner

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It's supposed to be something from Canon but why it would be so stealthy I haven't a clue. Submit the file to virustotal.com and let's see what they have to say about it.
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#19
HunterAce

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Virustotal.com says that its clean. I had it re-scanned. This is what it came up with.

File name:
WrtMon.exe
Submission date:
2011-12-10 03:49:03 (UTC)
Current status:
queued queued analysing finished
Result:
0/ 42 (0.0%)
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#20
RKinner

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I guess it's benign then. If you are not seeing any other problems then I guess we can clean up.


We need to cleanup System Restore if we haven't done so already:

Copy the following:

:Commands
[CLEARALLRESTOREPOINTS]
[Reboot]

Right click on OTL and Run As Administrator. In the Custom Scans/Fixes box at the bottom, paste in the copied text (Ctrl + v) and then hit Run Fix.

That will get the last of the malware off the system.



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

"%userprofile%\Desktop\combofix.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.

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.

Ron
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#21
HunterAce

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Ron thanks so much for your help. Have a great holiday. I installed ad block, the hippo checker, and updated everything except open office.
Will probably do that later. Already have a non standard pwd on my router. Appreciate the advice!

Brian
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