Malware Infections are Increasing in Korea

Detections in Korea rose 56.8 percent from 3Q10 to 4Q10, with three families—Win32/Onescan, Win32/Parite, and Win32/Nbar—representing 77 percent of the 3Q–4Q increase. Onescan, a Korean-language rogue security software family first detected in 4Q10, was itself responsible for about 32 percent of all detections in Korea.

Rogue security software, typically mimic the general look and feel of legitimate security software programs. These softwares appear to be beneficial from a security perspective but provides limited or no security, generates erroneous or misleading alerts, while urging users to pay for the “full version” of the software to remove the threats.

False malware detections by Win32/Onescan, a Korean-language rogue security software family

The relative prevalence of different categories of malware

This is extract from Microsoft Security Intelligence Report - Volume 10
Download the full report here