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‫ Microsoft Security Intelligence Report (2nd section)


Number: IRCRE201511208

Date: 2015-11-29

Volume 19 of the Microsoft Security Intelligence Report (SIRv19) provides in-depth perspectives on software vulnerabilities, software vulnerability exploits, malicious and potentially unwanted software, and security breaches. Microsoft developed these perspectives based on detailed trend analysis over the past several years, with a focus on first and second quarters of 2015 .You can see the second section of the report in the following post.

Malware and Potentially Unwanted Software

The information in this section was compiled from telemetry data that was generated from more than 1 billion computers worldwide and some of the busiest services on the Internet.

Malware prevalence worldwide

The following table shows the locations with the most computers reporting malware detections in 1H15.

 

The worldwide encounter rate increased slightly in 1Q15 before decreasing again in 2Q15. India, France, Turkey, the United Kingdom, Mexico, and Canada all had small encounter rate increases in the first quarter of 2015, followed by decreases to around the same level as 2Q14. In general, however, encounter rates remained largely stable through the first half of 2015 in all of these locations, without any unusually large increases or decreases.

 

Threat categories

 

The following figure shows encounter rates for significant threat categories in 3Q14–2Q15.

 

 

The number of encounters for most categories of malware remained stable or decreased throughout the first half of 2015, with the exception of Trojans, which increased to 4.5 percent in 2Q15 after dipping slightly in the first quarter. Encounters with the three most commonly detected trojan families, Win32/Peals, Win32/Kilim, and Win32/Skeeyah, all increased significantly in 2Q15.

 

Threat families

 

The following figure lists the top 10 malware families that were detected on computers by Microsoft real-time antimalware products worldwide in in 1H15, with other quarters included for comparison.

 

 

 

Malware encounter rates for domain-based and non-domain computers in 1H15, by category.

 

Related Link:

Microsoft Security Intelligence Report (1st section)

Reference:

http://www.microsoft.com/

 


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