Hello,
You may like to check the "Internet Security Threat Report" from:
http://www.symantec.com/threatreport/?inid=us_sr_flyout_publications_istr
Symantec Intelligence Report: February 2013
http://www.symanteccloud.com/en/us/mlireport/SYMCINT_2013_02_February.pdf
Also, check the BLOG, which speaks on :
Top 5 Security Predictions for 2013 from Symantec
https://www-secure.symantec.com/connect/blogs/top-5-security-predictions-2013-symantec-0
and the Whitepaper (attached) on "Top Ten Web Threats And How to Eliminate Them"
Currently, I find Trojan.FakeAv and W32.Changeup which you may be interested in:
How to troubleshoot FakeAV if it is not detected
http://www.symantec.com/docs/TECH157781
How to clean up a W32.Changeup infection
http://www.symantec.com/docs/TECH201560
Turning up settings in SEP to deal with fakeav
https://www-secure.symantec.com/connect/forums/tur...
Hope that helps!!