Microsoft Malware Protection Center

Threat Research & Response Blog

June, 2014

  • Microsoft Digital Crimes Unit disrupts Jenxcus and Bladabindi malware families

    ​Today, following an investigation to which the Microsoft Malware Protection Center (MMPC) contributed, the Microsoft Digital Crimes Unit initiated a disruption of the Jenxcus and Bladabindi malware families. These families are believed to have been created by individuals Naser Al Mutairi, aka njQ8, and Mohamed Benabdellah, aka Houdini. These actions are the first steps to stop the people that created, distributed, and assisted the propagation of these malware families. There are more details...
  • Adware changes – One week to go

    ​A quick note to all of developers out there. You have until 1 July to let us know if you think your software shouldn’t be detected under our new adware criteria. A few months ago I announced some major changes to how we at the Microsoft Malware Protection Center assess adware in my blog Adware: A new approach . As a reminder, the updated criteria defines adware as: Programs that promote a product or service outside of their own program can interfere with your computing experience...
  • “Your fault - core dumped”- Diving into the BSOD caused by Rovnix

    Recently we have noticed some Win32/Rovnix samples (detected as TrojanDropper:Win32/Rovnix.K ) causing the BSOD on Windows 7 machines. We spent some time investigating this situation and discovered an interesting story behind the BSOD. Analyzing the crash dump We first saw TrojanDropper:Win32/Rovnix.K in October 2013. During a normal Windows Boot the malware will cause the BSOD. Figure 1: Rovix BSOD screenshot To start, let’s analyze the crash dump using windbg: kd>...
  • MSRT June 2014 – Necurs

    This month we added Win32/Necurs to the Microsoft Malicious Software Removal Tool (MSRT). In a previous blog about Necurs I outlined the family's prevalence and the techniques it uses to execute its payload. In this blog, I will discuss the Necurs rootkit components Trojan:WinNT/Necurs.A and Trojan:Win64/Necurs.A in greater depth. These Necurs rootkit components are sophisticated drivers that try to block security products during every stage of Windows startup. It’s important to note...
  • Coordinated malware eradication nears launch

    ​Good news: the coordinated malware eradication preparations are almost done. We have held several roundtable meetings at industry events around the world, and the last two are scheduled for June and July. We had insightful conversations with a diverse group of experts from across the antimalware industry. The ideas have converged into a shared vision of how we’ll work together to put pressure on the malware ecosystem. I am excited for the first coordinated eradication campaigns to launch!...