Does facebook wall scan filter/remove Spam links as well as Malicious links?

I have a friend using Norton Security Suite recently downloaded on her computer running Windows 7. She has a daughter whose Facebook account has been sending out the usual Spam link to people on her friend list. viz. "Click here to see who viewed your account". I ran the Facebook Wall scan for her but it did not find any unsafe links in the last 24 hours. But a new SPAM link had definitely been posted in the last 24 hours.

 

I have a few questions around this.

 

1. Does the Facebook Wall Scan, report both SPAM links and Malicious links, or the latter only?

2. Is it possible to extend the Facebook Wall Scan to extend the scan for posts interval more than the 24 hour default? If so how? 

 

Thanks in advance for all your help.