What does this mean ?

[Frederic Gobin <frederic.gobin@xxxxxxxxxxxxxx>]

Hi there everybody,

I have one question :

	Each time I look into my firewall logs, I see many dropped packets 
that match this pattern :

	Protocol 		: TCP
	Source port	: 80
	Dest port		: 1024-65535
	Flags		: ACK FIN

Where are those packets comming from ?

Thanks for reading and Thanks for each answer I get ...

Frederic Gobin