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Shift and PenDrives


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Guest Francisco Gomez
Posted

Does really pressing 'shift' when inserting a pendrive prevent being infected

from it?

 

I suppose that it prevents executing 'autorun.inf' and other autoplay

options... So the virus, usually contained in an "exe" or another executable

launched during autoplay, is stopped. Then, you can manually delete it (using

shell window you can change attribs and remove those system / read-only files)

 

I don't know if are there boot serctor viruses active that could hide in a

pendrive.

 

A different matter is how a pendrive will get infected from an infected

system. When does it hapen? When inserting? While reading pendrive? Only when

writing?

 

Thank you!

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Guest Mantas MikulÄ—nas
Posted

Francisco Gomez wrote:<span style="color:blue">

> Does really pressing 'shift' when inserting a pendrive prevent being infected

> from it?</span>

 

No.

<span style="color:blue">

> I suppose that it prevents executing 'autorun.inf' and other autoplay

> options... So the virus, usually contained in an "exe" or another executable

> launched during autoplay, is stopped. Then, you can manually delete it (using

> shell window you can change attribs and remove those system / read-only files)</span>

 

First, AutoRun and AutoPlay are separate things. AutoRun executes the

autorun.inf file. AutoPlay just scans the disk for

pictures/music/movies/stuff.

 

Second, at least in Windows XP, autorun.inf's on pendrives aren't

executed automatically - you still get the autoplay's "choose action"

screen. So even if you don't hold Shift, nothing will be automatically

launched from a pendrive.

<span style="color:blue">

> I don't know if are there boot serctor viruses active that could hide in a

> pendrive.</span>

 

A pendrive isn't that different from a hard disk - it has boot sector,

it can have partitions, etc. But the boot sector is only executed when

you boot the system from the drive.

 

 

--

Mantas MikulÄ—nas <email = base64.decode("Z3Jhd2l0eUBjbHVlbmV0Lm9yZyA=")>

PGP/GPG: 0xCA07F3A91C9F7C03 <http://rootshell.be/~grawity/>

ASCII ribbon - against HTML email <http://www.asciiribbon.org>

Guest Francisco Gomez
Posted

So...

 

Is there any way to prevent executing autorun.inf in a pendrive when inserted?

 

"Mantas MikulÄ—nas" wrote:

<span style="color:blue">

> Francisco Gomez wrote:<span style="color:green">

> > Does really pressing 'shift' when inserting a pendrive prevent being infected

> > from it?</span>

>

> No.

> <span style="color:green">

> > I suppose that it prevents executing 'autorun.inf' and other autoplay

> > options... So the virus, usually contained in an "exe" or another executable

> > launched during autoplay, is stopped. Then, you can manually delete it (using

> > shell window you can change attribs and remove those system / read-only files)</span>

>

> First, AutoRun and AutoPlay are separate things. AutoRun executes the

> autorun.inf file. AutoPlay just scans the disk for

> pictures/music/movies/stuff.

>

> Second, at least in Windows XP, autorun.inf's on pendrives aren't

> executed automatically - you still get the autoplay's "choose action"

> screen. So even if you don't hold Shift, nothing will be automatically

> launched from a pendrive.

> <span style="color:green">

> > I don't know if are there boot serctor viruses active that could hide in a

> > pendrive.</span>

>

> A pendrive isn't that different from a hard disk - it has boot sector,

> it can have partitions, etc. But the boot sector is only executed when

> you boot the system from the drive.

>

>

> --

> Mantas MikulÄ—nas <email = base64.decode("Z3Jhd2l0eUBjbHVlbmV0Lm9yZyA=")>

> PGP/GPG: 0xCA07F3A91C9F7C03 <http://rootshell.be/~grawity/>

> ASCII ribbon - against HTML email <http://www.asciiribbon.org>

> </span>

Guest Max Wachtel
Posted

In news:5FF35864-8DE8-4090-A20D-A9A8E85B7F28@microsoft.com,

Francisco Gomez <FranciscoGomez@discussions.microsoft.com> after much

thought, came up with this jewel:<span style="color:blue">

> Does really pressing 'shift' when inserting a pendrive prevent being

> infected from it?

>

> I suppose that it prevents executing 'autorun.inf' and other autoplay

> options... So the virus, usually contained in an "exe" or another

> executable launched during autoplay, is stopped. Then, you can

> manually delete it (using shell window you can change attribs and

> remove those system / read-only files)

>

> I don't know if are there boot serctor viruses active that could hide

> in a pendrive.

>

> A different matter is how a pendrive will get infected from an

> infected system. When does it hapen? When inserting? While reading

> pendrive? Only when writing?

>

> Thank you!</span>

 

Here is some light reading

http://pandu.poluan.info/blog/itguy-en.php...flash-disk-from

 

Here is a program that does it for you-

http://www.softpedia.com/get/Antivirus/Ninja-Pendisk.shtml

--

Virus Removal http://max.shplink.com/removal.html

Keep Clean http://max.shplink.com/keepingclean.html

Change nomail.afraid.org to gmail.com to reply to me by email.

nomail.afraid.org is setup for use in USENET-feel free to use it

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