Re: Vshield vs Virstop (PC)

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1 total messages Started by Bill Lambdin Tue, 29 Dec 1992 00:28

#4763

Author: Bill Lambdin
Date: Tue, 29 Dec 1992 00:28

34 lines
1686 bytes

Quoting from Vesselin Bontchev to All About Re: Vshield vs Virstop (P on 
12-09-92

VB> BTW, I think that there is a way to tell Vshield to use the EMS if yo
VB> have some. This is a feature that Virstop doesn't have yet. Vshield

Vesselin:
 
Vshield doesn;t go into EMS. It can be loaded high in upper memory blocks. 
However. this is done with the /LH parameter. Vshiels will not work if 
users use LOADHIGH from DOS 5.0 or LOADHI in QEMM or some other memory 
manager.

VB> has also some other features, like an attempt to do on-line integrity
VB> checking, but this is not implemented well enough.

There are several problems with the integrity checking by Scan, and 
Vshield.
 
1. Some programs will not run after the CRC is added to the file. So it is 
   necessary to remove the CRC. Scan filename /RV will remove the CRC.
 
2. These CRCs will not detect stealth infectors because stealth viruses 
   disinfects infected files when an infected file is opened for any 
   reason.

3. These CRCs will not detect the presence of companion infectors because 
   these companion infectors do not attach to files.

Bill

- ---
 * WinQwk 2.0 a#383 * JULY 13TH activates Jul 13th

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