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The simple act of getting on the Internet and downloading email or going to a Web page can expose your computer to malicious crackers who would love to take over your machine for their own use. Originally, the Security Tango was mostly for Windows-based computers.To dance the Security Tango, click the Let's Dance link up above. I'm sure that those of you running Linux or a Macintosh used to laugh yourselves sick at all the machinations that your Windows-using friends had to go through to keep themselves safe. As Linux and the Mac have become more popular, we've see more viruses for them.CPU hardware implementations are vulnerable to side-channel attacks referred to as Meltdown and Spectre.These attacks are described in detail by CERT/CC’s Vulnerability Note VU#584653, the United Kingdom National Cyber Security Centre’s guidance on Meltdown and Spectre, Google Project Zero, and the Institute of Applied Information Processing and Communications (IAIK) at Graz University of Technology (TU Graz).More information can be found here: https://support.microsoft.com/en-us/help/4073707/windows-os-security-update-block-for-some-amd-based-devices For machines running Windows Server, a number of registry changes must be completed in addition to installation of the patches.A list of registry changes can be found here: https://support.microsoft.com/en-us/help/4072698/windows-server-guidance-to-protect-against-the-speculative-execution ANTIVIRUSMicrosoft has recommended that third-party antivirus vendors add a change to the registry key of the machine that runs the antivirus software.The Linux kernel mitigations for this vulnerability are referred to as KAISER, and subsequently KPTI, which aim to improve separation of kernel and user memory pages.NCCIC encourages users and administrators to refer to their hardware and software vendors for the most recent information.
Administrators should ensure that performance is monitored for critical applications and services, and work with their vendor(s) and service provider(s) to mitigate the effect, if possible.Without it, that machine will not receive any of the following fixes from Microsoft: More information can be found here: https://support.microsoft.com/en-us/help/4072699/january-3-2018-windows-security-updates-and-antivirus-software.MITIGATIONThe table provided below lists available advisories and patches.This table will be updated as information becomes available. government partners, DHS and FBI identified Internet Protocol (IP) addresses and other indicators of compromise (IOCs) associated with a Trojan malware variant used by the North Korean government—commonly known as Volgmer. For more information on HIDDEN COBRA activity, visit https://
Original release date: November 14, 2017 | Last revised: November 22, 2017 Network systems This joint Technical Alert (TA) is the result of analytic efforts between the Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI). FBI has high confidence that HIDDEN COBRA actors are using the IP addresses—listed in this report’s IOC files—to maintain a presence on victims’ networks and to further network exploitation.For a downloadable copy of IOCs, see: NCCIC conducted analysis on five files associated with or identified as Volgmer malware and produced a Malware Analysis Report (MAR).