This is just the ED4 yahoo exploit packet thrown in a single login.
It disconnect the yahoo messenger and chat clients Ysupra, Yazak etc.
It will boot Ysupra if you have high speed connection.
Use 25-30 packets and if you have fast connection it will send exploit packets fast enough to d/c clients like ysupra and yazak. so anyone with a connection of less then 4MPBS it might not disconnect the yahoo messenger or other cleints
This yahoo nooter uses dazzas ymsg15 login method and it is developed by Jammer.
Download The Single Login Yahoo Booter: