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Michael Cecil

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Since: Jan 28, 2008
Posts: 15



(Msg. 1) Posted: Sun Aug 13, 2006 12:48 am
Post subject: McAfee scan86.exe question
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David H. Lipman

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Since: Jul 04, 2003
Posts: 1728



(Msg. 2) Posted: Sun Aug 13, 2006 12:18 pm
Post subject: Re: McAfee scan86.exe question [Login to view extended thread Info.]
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From: "Michael Cecil" <macecil.DeleteThis@gmail.com>

| Looking at my old DOS emergency CD, I was trying out scan86.exe again and
| noticed it does many passes before finishing. I probably knew this once,
| but why does it repeat its efforts so many times? On the test machine I
| was scanning the drive is FAT16 and has only a few hundred files yet it
| takes 72 passes for scan86 to scan it all.
| --
| Michael Cecil
| http://home.comcast.net/~macecil/
| http://home.comcast.net/~safehex/

SCAN86.EXE is Engine related.

What Engine version is it ?

--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm

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Michael Cecil

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Since: Jan 28, 2008
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(Msg. 3) Posted: Sun Aug 13, 2006 12:18 pm
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Art

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Since: Jun 06, 2006
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(Msg. 4) Posted: Sun Aug 13, 2006 2:54 pm
Post subject: Re: McAfee scan86.exe question [Login to view extended thread Info.]
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On Sun, 13 Aug 2006 00:48:30 -0500, Michael Cecil <macecil.RemoveThis@gmail.com>
wrote:

>Looking at my old DOS emergency CD, I was trying out scan86.exe again and
>noticed it does many passes before finishing. I probably knew this once,
>but why does it repeat its efforts so many times? On the test machine I
>was scanning the drive is FAT16 and has only a few hundred files yet it
>takes 72 passes for scan86 to scan it all.

I vaguelly remember scan86, and my guess is that it lacks a DOS
extender thereby working with a medium memory model in the first
640K of memory only (lower memory). So rather than creating files
like crazy to make up for the lack of memory, it does things in
"little pieces at a time".

I always used SCANPM since it does have a DOS extender, and I found
it always worked well for me back in the earlier days. IIRC, the old
SCAN.EXE would make some kind of assessment of the environment
and then it would hand off to either SCANPM or SCAN86 to do the
scanning. But that's ancient history, and things have changed
considerably, I think, with the McAfee command line scanners.

Art
http://home.epix.net/~artnpeg
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Michael Cecil

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Since: Jan 28, 2008
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(Msg. 5) Posted: Sun Aug 13, 2006 2:54 pm
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David H. Lipman

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Since: Jul 04, 2003
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(Msg. 6) Posted: Sun Aug 13, 2006 4:40 pm
Post subject: Re: McAfee scan86.exe question [Login to view extended thread Info.]
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From: "Michael Cecil" <macecil DeleteThis @gmail.com>


|
| The one I was using was 4.1.40. Scanpm works fine, I was just wondering
| about the multiple passes that scan86 was doing.

Well it is an OLD and unsupported Engine and may not work properly with new DAT files.
http://www.mcafee.com/us/enterprise/support/customer_service/end_life.html

Since McAfee dropped support for Win9x/ME in Jun '05, support for SCAN86.EXE was also
dropped.

I suggest using the latest SCAN.EXE from Engine v5100.
http://download.nai.com/products/licensed/superdat/engine/intel/5100/5100eng.exe

To extract all the engine files into C:\McAfee,
Execute; 5100eng.exe /e c:\McAfee

--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm
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Michael Cecil

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Since: Jan 28, 2008
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(Msg. 7) Posted: Mon Aug 14, 2006 1:21 am
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David H. Lipman

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Since: Jul 04, 2003
Posts: 1728



(Msg. 8) Posted: Mon Aug 14, 2006 9:01 pm
Post subject: Re: McAfee scan86.exe question [Login to view extended thread Info.]
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From: "Michael Cecil" <macecil DeleteThis @gmail.com>

| On Sun, 13 Aug 2006 16:40:47 GMT, "David H. Lipman"
| <DLipman~nospam~@Verizon.Net> wrote:
|
>> From: "Michael Cecil" <macecil DeleteThis @gmail.com>
>>
>|> The one I was using was 4.1.40. Scanpm works fine, I was just wondering
>|> about the multiple passes that scan86 was doing.
>>
>> Well it is an OLD and unsupported Engine and may not work properly with new DAT files.
>> http://www.mcafee.com/us/enterprise/support/customer_service/end_life.html
|
| Yeah, but it does work fine, eventually. I think Art must be right about
| it just breaking down the job into many small passes.

Read the specification of many infectors and you'll see a MINIMUM Engine requirement for
detection and removal.


Example:

MOCBOT!MS06-40 -- http://vil.nai.com/vil/content/v_140394.htm
Minimum Engine v4400


--
Dave
http://www.claymania.com/removal-trojan-adware.html
http://www.ik-cs.com/got-a-virus.htm
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