Life cycle VIRUS

Life cycle of viruses in general, through the 4 stages: 
Dormant phase (Phase Rest / Sleep) 
At this phase the virus is not active. Virus will be activated by a condition 
particular, such as: the date specified, the presence of other programs / be executed 
other programs, etc.. Not all of the virus through this phase. 
Propagation phase (phase distribution) 
At this phase the virus will copy it self to a program or to a 
place of storage media (both hard drives, RAM etc.). Each program is infected 
will be the result of "cloning" the virus (depending on how the virus 
menginfeksinya). 
Trigerring phase (active phase) 
In this phase the virus is active and this is also the trigger conditions by some 
as in the Dormant Phase. 
Execution phase (execution phase) 
At this phase the virus is active before akan perform its function. Like 
delete files, display messages, etc.