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Microsoft Security Response Center Blog

December 2019 security updates are available

Tuesday, December 10, 2019

We have released the December security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found in the Security Update Guide. As a reminder, Windows 7 and Windows Server 2008 R2 will be out of extended support and no longer receiving updates as of January 14, 2020.

Customer Guidance for the Dopplepaymer Ransomware

Wednesday, November 20, 2019

Microsoft has been investigating recent attacks by malicious actors using the Dopplepaymerransomware. There is misleading information circulating about Microsoft Teams, along with references to RDP (BlueKeep), as ways in which this malware spreads. Our security research teams have investigated and found no evidence to support these claims. In our investigations we found that the malware relies on remote human operators using existing Domain Admin credentials to spread across an enterprise network.

BlueHat Seattle videos are online!

Wednesday, November 13, 2019

Were you unable to attend BlueHat Seattle, or wanted to see a session again? We have good news. If you have been waiting for the videos from BlueHat Seattle last month, the wait is over. All videos which the presenter authorized to be recorded are now online and available to anyone.

November 2019 security updates are available!

Tuesday, November 12, 2019

We have released the November security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found in the Security Update Guide. As a reminder, Windows 7 and Windows Server 2008 R2 will be out of extended support and no longer receiving updates as of January 14, 2020.

Using Rust in Windows

Thursday, November 07, 2019

This Saturday 9th of November, there will be a keynote from Microsoft engineers Ryan Levick and Sebastian Fernandez at RustFest Barcelona. They will be talking about why Microsoft is exploring Rust adoption, some of the challenges we’ve faced in this process, and the future of Rust adoption in Microsoft. If you want to talk with some of the people working on how Microsoft is evolving its code practices for better security, be sure to attend the keynote and talk to Ryan and Sebastian afterwards!

Vulnerability hunting with Semmle QL: DOM XSS

Wednesday, November 06, 2019

In two previous blog posts ( part 1 and part 2), we talked about using Semmle QL in C and C++ codebases to find vulnerabilities such as integer overflow, path traversal, and those leading to memory corruption. In this post, we will explore applying Semmle QL to web security by hunting for one of­­­ the most common type of client-side vulnerabilities: DOM-based cross-site scripting (XSS).

Time for day 2 of briefings at BlueHat Seattle!

Friday, October 25, 2019

We hope you enjoyed the first day of our BlueHat briefings and the Bytes of BlueHat reception in our glamping tent (complete with toasted marshmallows). Yesterday, we learned a lot about how XboxOne hardware security has advanced the state of hardware security elsewhere, we heard some surprising correlations between vuln severity, age, and time to fix, and we saw applications for machine learning for malware detection—as well as some of the attack surface for machine learning and how to protect it.

Welcome to the second stage of BlueHat!

Thursday, October 24, 2019

We’ve finished two incredible days of security trainings at the Living Computer Museum in Seattle. Now it’s time for the second part of BlueHat: the briefings at ShowBox SoDo. We’ve got a big day planned, so head on down. Please join us for breakfast (we have doughnuts! and bacon! and cereal!

Microsoft Identity Bounty Improvements

Wednesday, October 23, 2019

Microsoft is continually improving our existing bounty programs. Today we’re happy to share the latest updates to the Microsoft Identity Bounty. Originally launched in July 2018, the Microsoft Identity bounty program has helped build a partnership with the security research community to improve the security of customer and enterprise identity solutions across Azure, Windows, and OpenID standards.

Introducing the ElectionGuard Bounty program

Friday, October 18, 2019

Today we are launching the [ElectionGuard Bounty program](«http://www.microsoft.com/msrc/bounty-electionguard> >). In May 2019, we announced the release of ElectionGuard, a free open-source SDK to make voting more secure, transparent, and accessible. ElectionGuard enables end-to-end verification of elections, open results to third-party organizations for secure validation, and allows individual voters to confirm their votes were correctly counted.