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The threat landscape in India has turned out to be more active than initially suspected. India has had a relatively low malware infection rate for some time, which seemed subdued for a region that has such a large high tech industry. But with the new data we recently released in the latest Microsoft Security Intelligence Report (volume 11), the plot thickens.
For example, the Microsoft Windows Malicious Software Removal Tool (MSRT) cleaned malware on 2.9 computers for every 1,000 it executed on, in the first half of 2011. This is well below the worldwide average of 10.97 in the first quarter and 9.77 in the second quarter of 2011. Recently I published an article called Determining the Geolocation of Systems Infected with Malware that describes how we changed the way we determine the location of systems that report malware infections. Using this new method to determine the malware infection rate in India, we see 15.2 and 15.9 systems infected with malware in the first and second quarters of 2011 respectively. This tells us at least two things. First, many people who do not live in India still set the locale setting of their Windows systems to India. Second, the malware infection rate in India is much higher than initially suspected.
Figure: The infection rate, measured in Computers Cleaned per Mille (CCM), trend for India over the four quarters spanning the third quarter of 2010 to the second quarter of 2011, compared to the worldwide rate
Figure: Malware and potentially unwanted software categories in India in the 2nd quarter of 2011, by percentage of computers affected
As seen in the graph above, the most common category of threat found in India during the second quarter of 2011 was Worms, which affected 38.3% of all computers cleaned in India, down from 40.6% in the first quarter. Five of the top ten families of threats found in India were Worms. The second most common category of threat in India during Q2 was Miscellaneous Trojans, which affected 33.6% of all computers cleaned in India, up from 33.3% in the first quarter. The third most common category in India in Q2 was Miscellaneous Potentially Unwanted Software, which affected 30.7% of all computers cleaned, down from 32.3% in Q1.
Figure: The top 10 malware and potentially unwanted software families in India in the 2nd quarter of 2011
The thing that really caught my attention was that India has the highest percentage of spambot IP addresses in the world. 11% of all spambot IP addresses were located in India in the second quarter of 2011. To give you some context, Germany had 0.786%, France had 0.982%, the United Kingdom had 1.805%, and the United States had 4.97% of all spambot IP addresses during the same period. India had more spambot IP addresses than all of these locations added together.
I asked Microsoft’s Chief Security Officer in India, Sanjay Bahl, what computer users in India should do to protect themselves. Sanjay had the following to say:
Computer Emergency Response Team India tracked 1.6 million Bot Infected Systems in the financial year 2010 – 2011 and is aware and concerned of the Spam issue. The challenge is to create mass cyber security awareness among users. A pilot initiative on public health model has been tried to fight the bot menace with some encouraging results. In India almost 73% of the users are still on Windows XP and hence it is imperative that:
Tim Rains Director, Product Management Trustworthy Computing