Microsoft has released the sixth volume of its Microsoft Security Intelligence Report, which showed a significant increase in rogue security software and evidence that threats are predominantly targeting common third-party desktop applications. This version of the report also showed that the No. 1 reason for data breaches remains lost and stolen computer equipment.
Released twice a year, the Microsoft Security Intelligence Report uses data gathered from hundreds of millions of computers worldwide to provide an in-depth snapshot of the threat landscape. With this volume, which covers the second half of 2008, Microsoft provides more information and insight about threats than ever before by offering new data on document file format attacks, the differences in malware affecting home and business computers, and phishing.
Rogue security software, also known as "scareware," takes advantage of users' desire to keep their computers protected. The rogue software lures them into paying for protection that, unknown to them, is actually malware offering little or no real protection, and is often designed to steal personal information. The Microsoft Security Intelligence Report shows that such programs are now among the top threats around the world. For example, two rogue families, Win32/FakeXPA and Win32/FakeSecSen, were detected on more than 1.5 million computers by Microsoft software, catapulting them into the top 10 threats in the second half of the year. In addition, Win32/Renos, a threat that is used to deliver rogue security software, was detected on 4.4 million unique computers, an increase of 66.6 percent over the first half of 2008.
The Security Intelligence Report also showed that as software companies have improved the security of their operating systems, attackers have shifted their focus to the application layer, where the majority of vulnerabilities are now being reported; nearly 90 percent of vulnerabilities disclosed in the second half of 2008 affected applications. The report also showed that Microsoft continues to make significant progress in secure software development and that newer versions of Microsoft software are more secure than previous versions.
Finally, the Security Intelligence Report showed that lost and stolen equipment, not computer hacking, continues to be the most common cause of security breaches resulting in data loss publicly reported in the second half of 2008 -- totaling 50 percent of reported incidents. To mitigate this threat, organizations must implement strong data governance practices to help protect data from criminal access.
The proactive steps Microsoft recommends for individuals and businesses include:
- Configure computers to use Microsoft Update instead of Windows Update; this will ensure the receipt of security updates for Microsoft Office and other Microsoft applications, as well as security updates for Microsoft Windows operating systems. More information on how to do this is available here.
- Make sure that updates also are enabled when possible for third-party applications.
- Use an anti-malware product from a known, trusted source, and keep it updated. Be cautious not to follow advertisements for unknown software that appears to provide protection (rogue security software).
- Avoid opening attachments or clicking on links to documents in e-mail or instant messages that are received unexpectedly or from an unknown source.
- Enterprise customers should ensure that policies are in place to help secure all file shares and regulate the use of removable media.
- Enterprise customers should use the Microsoft Security Assessment Tool (MSAT) to help assess weaknesses in their IT security environment and build a plan to address the risks.
- Enterprise customers should help control the use of remote management software.