pdf disables usb printing

Gigabyte / Nvdaacpi
June 30, 2010 at 05:55:48
Specs: Windows 7 Professional, 3.0 / 3gig
Bit if a peculiar one this, I wasn't too sure
whether it was security or hardware but here
we go.

Client received a fairly large pdf file from a
Spanish solicitor. Tried printing it & after 4-5
pages it just stopped and he couldn't print
anything else. I checked & found that his 2
printers had become 'unknown devices' and
USB printing had been disabled in Device
Manager. Couldn't restart it so ended up
doing a System Restore to previous day & all
well & good until tried printing the same
document again, same result at about the
same point. Restored again and printed off
another large pdf, as well as a couple of Word
documents with no problems. Contacted the
sender (fun in pidgin Spanish!) & he said he
would send it by snail mail as the town he was
in (Malaga) had been having 'IT security
problems' which he knew little about but we
weren't the only ones to be affected.

So the question is, can a pdf file mess up a
system in this way. I omitted to scan the
document before the client deleted it, but it
just got me wondering if anyone else had (1)
come across this or (2) come across any
problems in Malaga?

"I've always been mad, I know I've been mad, like the most of us..."


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#1
June 30, 2010 at 17:04:04
Sure, but who knows the exact cause. Unless you can re-create that on a virtual machine or test computer you'd have a hard time proving it.

Try a restore point.

I support the 'Everybody Draw Mohammed Day'. A religion doesn't deny my freedom.


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#2
June 30, 2010 at 17:06:08
Oh, you did the restore point.

Scan that document with a few AV scanners too.

Might look at Event logs.

Be sure that no one uses that logged on as admin. Be sure all users are set to lowest needed permissions.

I support the 'Everybody Draw Mohammed Day'. A religion doesn't deny my freedom.


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#3
June 30, 2010 at 23:04:32
Thanks for reply. It's a single user machine with the main
user having a standard account - he knows the administrator
account password but never uses it as it hasn't got his name
on it (he's a solicitor so he's far more important than just an
'admin' ;-) ). He runs a full scan with Kaspersky every
Monday morning and the quick scan runs every day. He also
has an automatic daily remote backup, Basically I think he's
as well protected as he can be and over the 5-6 years I've
known him this is the first instance of anything security
related that he's had, so it was more out of my interest than
anything else. Unfortunately, as he's only recently moved
over from XP to Win7 it does mean that he's a bit suspect of
the OS anyway :-(

"I've always been mad, I know I've been mad, like the most of us..."


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Related Solutions

#4
July 13, 2010 at 19:44:04
Hi, I guess the pdf file may be restricted by owner password which prevents you from copying, editing and printing pdf files. In this case, you need a pdf password remover to remove pdf password, after which you can print the pdf file. AnyBizSoft has such product.

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#5
July 14, 2010 at 01:54:06
Thanks for reply - the document wasn't password protected. As I
said, the problem was that viewing the document disabled usb
printing support. I tried it 3-4 times, same problem occurred and
it was the only document that caused the problem. It's been a
couple of weeks now & the problem hasn't occurred again - the
original pdf was deleted & the info sent in hard copy. So I can't
even recreate it.

"I've always been mad, I know I've been mad, like the most of us..."


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