Computer worms have been plan big threat on the Internet these days . In order to prevent the worm propagation efficiently ,
it is becoming quite important to analyze and model how those worms spread quantitatively .
AAWP model is one of the models which characterizes the worms behavior introduced by Zesheng Chen in 2003 .
This model has only static parameters and it is hard to express worm propagation accurately. In this paper ,
we propose a new AAWP model which adopts dynamic parameter and compare our model not only with conventional
model, but also with real data of propagation of active worm .