Sorry...
I misread above line as, "My friends, trust website, that they don't spread virus, even when they don't know any thing about them"
But to your original quote, yes,
---------- Post added at 10:53 AM ---------- Previous post was at 10:49 AM ----------
Is that possible! How a post can contain a malware?
I think, you meant, one in 5 posts in facebook, directs to a site containing malware. Were u?
"My friend even trusted sites spread virus which they don't even know themselves.",
I misread above line as, "My friends, trust website, that they don't spread virus, even when they don't know any thing about them"
But to your original quote, yes,

---------- Post added at 10:53 AM ---------- Previous post was at 10:49 AM ----------
1 in 5 posts in facebook contain malware.

I think, you meant, one in 5 posts in facebook, directs to a site containing malware. Were u?