Yahoo log-in, help!! virus?

[jezzzz2003]

Yesterday, my g/f received a weird thing from a few people in her facebook friends list, these people didnt send it to her, they received it and it has spread, not sure if this has anything to do with the question at hand but thought Id let you guys know about it,

anyway,
Now she cant log into her Yahoo email or account, it still says 'Hello' and your username but the password wont log you in, it just reads 'incorrect password or username'

does anyone know what could be happening here? :dunno

[Last Nerve]

IIRC, I JUST read about this nasty virus that was circulating from duping people into thinking it was something from Facebook.

Do a quick search and you might find the solution to it.