Hide ability of self

Hide this capability must be owned by a virus that 
all work well from the beginning until the successful transmission can be realized. 
The steps that are usually made: 
- Program the virus stored in the form of machine code and combined with the program 

others that are considered useful by the user 

- Program Boot virus placed on the record or track on the disk that is rarely 

observed by the computer itself 
- Program viruses sependek may be made, and the resulting file is not too diinfeksi 
change in size 
- The virus does not change the description / information within a file 
- Etc.