Computer Internet Attacks

To Whom this may concern:

Computer anti-virus programs work only some of the time.
My new McAfee anti-virus computer software could not stop an intrusion which stopped my Maple 8 program from working. This is
probable because it could not distuinguish small size codes as
unwanted codes.
To stop unwanted computer programs during a download,
the entire data stream needs to be encrypted. The encrypted data
stream in the destination computer is then locked up as a file which cannot operate the computer. When the entire file is decrypted, the unwanted program becomes gibberish and can be removed.
Someone can send his or her message twice; with a different
code each time. After the messages are decrypted, the computer can compare the messages to help determine which computer codes are the message.

Leonard

 

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huh? so just double the packet traffic on the net just like that?

 

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Computer Internet Attacks continued

To Sciforums.com Readers:

If the data is send more than once, the datas can help the computer
determine which data bytes or characters are the the send data. Someone can just look at the datas to see which codes are the same. If you only have one data input, the computer may not be able to tell
if the data has a mistake. The more copies someone has of the send data, the easier the computer can determine which bytes are data.

Leonard Belfroy.

 

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What makes you think this?

What will this accomplish? Encrypting an infected file or a virus won't change the fact that it's a virus. In the case of a trojan, for example, once you decrypt and run it, it'll go about its viral business as usual.

How do you mean to accomplish this? I suppose you could do something like run the downloaded program with strict access restrictions and detect 'virus-like behavior'...but the problem with this is that such behavior is only virus-like if it's malicious. Maybe I have a program that modifies system files for me...is that necessarily malicious? Sure, there are a few actions that very few programs should do, like modify the boot record. These should be detected and verified by the user (Norton does this). But I don't want to say, "Yes, let this program access the registry; yes, let it access this file...", and an antiviral program won't be able to automatically determine when such an action is good or bad.

If you're talking about error detection with multiple transmissions, there are much more efficient ways to accomplish this with reasonable confidence in a handful of bytes.