1. So dont login to your orkut account,
2. if you wish to change password, use this linkwww.google.com/accounts/
Bom Sabado is a cookie stealing virus.
If you think that you are affected by this virus please change your passwords immediatly and clean your browser cookies as-well. Its safe to keep away from opening your orkut until orkut official give out the status of the attack.
Bug Status :Problem is Under Control, Bug Not Fixed (Keep Visit to know the status)