Microsoft Security Response Center
https://technet.microsoft.com/en-us/security/dn440717.aspx
Security TechCenter
https://technet.microsoft.com/en-us/security/default
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2017, October 25th:
Ransom: Bad Rabbit Win32/Tibbar.A
https://www.microsoft.com/en-us/wdsi/threats/malware-encyclopedia-description?Name=Ransom:Win32/Tibbar.A
Windows Defender Offline Scan
https://docs.microsoft.com/en-us/windows/threat-protection/windows-defender-antivirus/windows-defender-offline#run-a-scan
Windows 7 SP1 and Windows Server 2008 R2 SP1 update history
https://support.microsoft.com/en-gb/help/4009469
2017, June 28th:
Microsoft Malware Protection Engine flaw (CVE-2017-8558) – now patched at 1.1.13903.0+
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8558
2017, June 13th:
Microsoft Security Advisory 4025685
https://technet.microsoft.com/en-us/library/security/4025685
4025685: Guidance for older platforms: June 13, 2017
https://support.microsoft.com/en-us/help/4025687/microsoft-security-advisory-4025685-guidance-for-older-platforms
Microsoft Security Scanner https://www.microsoft.com/security/scanner/en-us/default.aspx Manual updates for Microsoft Security products https://www.microsoft.com/security/portal/definitions/adl.aspx
2017, May 5th:
Microsoft Customer Guidance for Wannacrypt attacks
https://blogs.technet.microsoft.com/msrc/2017/05/12/customer-guidance-for-wannacrypt-attacks/