Legacy Update: Get back online, activate, and install updates on your legacy Windows PC

This is the eleventh volume of the Microsoft Security Intelligence Report.

Volume 11 of the Microsoft® Security Intelligence Report provides an in-depth perspective on malicious and potentially unwanted software, software exploits, security breaches and software vulnerabilities (both in Microsoft software and in third-party software). Microsoft developed these perspectives based on detailed analysis over the past several years, with a focus on the first half of 2011.

Files

Status: Deleted This download is no longer available on microsoft.com. The downloads below are archives provided by the Internet Archive Wayback Machine from the Microsoft Download Center prior to April 2023.

Files
Microsoft_Security_Intelligence_Report_volume_11_Advanced_Malware_Cleaning_Techniques_for_the_IT_Professional_English.pdf SHA1: d7ddcb81b3fa898d0e90570e9286a3c1c869c63d Size: 687 KB
Microsoft_Security_Intelligence_Report_volume_11_English.pdf SHA1: 3d3f4fb2e7aae03ee988c93cb48de39aba0d9ca8 Size: 5.33 MB
Microsoft_Security_Intelligence_Report_volume_11_Key_Findings_Summary_English.pdf SHA1: 14d7acca00cb2c98eeb68959f66ea4db0051c938 Size: 767 KB
Microsoft_Security_Intelligence_Report_volume_11_Promoting_Safe_Browsing_English.pdf SHA1: 6736ae7627b54c0c65624998bdda8e2ebfa6e3d6 Size: 318 KB
Microsoft_Security_Intelligence_Report_volume_11_Regional_Threat_Assessments_English.pdf SHA1: b1c14b93e3f6b3b0e37ae04fc9eaf6b4537b0f78 Size: 7.38 MB
Microsoft_Security_Intelligence_Report_volume_11_Worldwide_Threat_Assessment_English.pdf SHA1: 9979c6e53611a329a94246044924ba9955cfa092 Size: 3.92 MB
Microsoft_Security_Intelligence_Report_volume_11_Zeroing_in_on_Malware_Propagation_Methods_English.pdf SHA1: bc357e047e94cb637f878f0c7a73b3523510325c Size: 776 KB

Any supported Operating System

Download the full SIR, Worldwide Threat Assessment, Key Findings Summary and Regional Threat Assessments. All are available as a PDF.