Symantec released their 2009 Internet security threat report. 


One interesting aspect for India is that it found a significant growth of malicious activity in countries such as Brazil and India, a big jump for India from its 11 place in 2008. The top five most malicious countries, ranked in order, are: the United States, China, Brazil, Germany and India, according to the report. The report also said that in 2009, india also accounted for 15 percent of all malicious activity  in the Asia-pacific/Japan (ApJ) region, an increase from 10 percent in 2008. For specific categories of measurement in the ApJ region, india increased rank in malicious code, spam zombies and phishing hosts from 2008. its high ranking in spam zombies also contributed to india being the third highest country of spam origin globally. 


As we have seen throughout 2009, the report states that web-based attacks associated with malicious PDF files skyrocketed during the year. According to Symantec, the number of attacks targeting PDF viewers such as Adobe Reader accounted for 49 percent of the Web-based attacks observed for the year, more than four times the 11 percent observed in 2008. 

The report is available here