Bot Virus

Now I'm checking Bot virus.
Do you know "Bot"??
It is said that the name calle Bot come from Robot.
Recently Bot viruses are very scary, I think.
Bot virus is very similar to another computer viruses. The difference between Bot and normal virus is that Bot is controlled on remote. Furthermore computers infected by Bot make "Bot-network".
The problem is that Bot isn't easy to find out by Anit-virus software.
Bot can change itself automatically.
So Anti-virus software can't find the pattern. To make worse, Anti-virus makers are not able to keep up with the Bot.
Bot viruses steal the data (for exmaple. credit card number) from the computers,
send a lot of spam mail and behave badly .
We have to be careful.
My work is concerned about computer virus, so I always pay it attention .
Oh, I've just finished the check. Fortunately, Bot wasn't included in my PC.
What a relief :D