....."targets Facebook users"

No big loss there.

Nah, these are Facebook lusers. You're crediting them with waaaay too much intelligence.

The only thing it'll cause is a sh*t load of support calls to various friends / organisations / mates from the pub from people wanting to know why their funny video won't play even though they've installed the right codec when prompted.

Any explanation of the worm / fake codec, its effects and such will be countered with: "So, how *do* I get the funny video to play then?"

Flames, 'cos like most who understand computers I know a lot of people who a) don't and b) have my phone number........

I thought that was the worm,/trojan...It will never see the light of day in my household (i've blocked it).