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Server 2003 Drive Mapping Issues and File Corruption

Posted on 2013-12-06
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Last Modified: 2014-01-29
I have a client with Server 2003. The users are running Windows XP Pro and Windows 7 Pro.

1) The mapped drives from the workstations stopped working on the Windows 7 machines, but the XP machines mappings to shares on the server still work. I was able to map drives from the Windows 7 machines using the servers IP address   ( \\xxx.xxx.xxx.xxx\Share )

2) I had to move the (3) Quickbooks databases from the server to the local machines, because Quickboks could not open them while they were on the server.

3) When accessing files (Excel\Word) files on the server I get the following error from both XP and W7:

"The file you are trying to open, [filename], is in a different format than specified by the file extension. Verify that the file is not corrupted and is from a trustworthy source before opening the file. Do you want to open the file now?"

Clicking Yes to open the file, you may find that the content of the file is unreadable and contains unreadable characters and/or symbols.



Help-Thanks in advance.
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Question by:mapalaska2003
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6 Comments
 
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Expert Comment

by:Britt Thompson
ID: 39702010
First though would be a duplicate IP of the server on the network.

Second, do the files work fine if you copy them locally to a machine using Word or Excel? Typically that error pops up when files are accessed from an untrusted location.

Third, I would suspect you have a failing disk on the server or a virus like cryptolocker thats encrypting the files or something of that nature.
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Author Comment

by:mapalaska2003
ID: 39702051
Renazones,

The files have the same problem when opened locally.

I just found out that a user with a laptop may have cryptolocker. It's been disconnected from the network.

 How do I recover the files on the network shares?
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Expert Comment

by:Britt Thompson
ID: 39702100
There may be some working cleanup tools out there but if you don't have a backup you'll probably have to pay the ransom to get your files back.

http://readwrite.com/2013/11/08/cryptolocker-prevent-remove-eradicate#awesm=~ophdpzgs6yvMRB

http://www.bleepingcomputer.com/virus-removal/cryptolocker-ransomware-information

According that bleeping computer article you have to pay to get your files back without a backup.
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Author Comment

by:mapalaska2003
ID: 39709155
I've wiped the laptop and doing a fresh install, but I've still not resolved the drive mapping?issue. from what I've read, it may be unrelated. Any ideas?
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Accepted Solution

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Britt Thompson earned 500 total points
ID: 39709176
"If one computer on a network becomes infected, mapped network drives could also become infected."

- http://www.us-cert.gov/ncas/alerts/TA13-309A

I haven't seen this in person so I can't tell you how the files react when you try to open them but this is my best guess as to what the issue is here if it's not some sort of corruption on the disk.
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Author Closing Comment

by:mapalaska2003
ID: 39819632
Thanks
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