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Security

  • Group PoliciesSecurityWindows 10Windows Server 2019

    How to Disable NetBIOS and LLMNR Protocols in Windows Using GPO?

    April 9, 2021

    The broadcast protocols NetBIOS over TCP/IP and LLMNR are used in most modern networks only for compatibility with legacy Windows versions. Both protocols are susceptible to spoofing and MITM attacks.…

  • Active DirectoryGroup PoliciesSecurityWindows Server 2012 R2Windows Server 2016

    Zerologon (CVE-2020-1472): Critical Active Directory Vulnerability

    December 4, 2020

    In August 2020, Microsoft released an update to fix a critical Windows Server vulnerability in Active Directory — CVE-2020-1472 (more known as Zerologon) . This update was successfully installed on…

  • Active DirectoryGroup PoliciesSecurityWindows Server 2012 R2

    How to Disable NTLM Authentication in Windows Domain?

    September 24, 2019

    NTLM (NT LAN Manager) has been used as the basic Microsoft authentication protocol for quite a long time: since Windows NT. Although Microsoft introduced a more secure Kerberos authentication protocol…

  • PowerShellSecurity

    Secure Password (Credentials) Encryption in PowerShell Scripts

    August 20, 2019

    Administrators often have to store passwords in automation scenario directly in the body of PowerShell scripts. As you know, it is extremely insecure when used in a productive environment, since…

  • Active DirectoryGroup PoliciesSecurity

    Securing Administrative (Priveleged) Accounts in Active Directory

    March 27, 2018

    In this article, I have tried to collect all major organizational and technical rules of using privileged / administrative accounts in the organization to improve security in the Windows network.…

  • SecuritySQL ServerWindows Server 2012 R2

    How to Obtain SeDebugPrivilege when Debug Program Policy is Enabled

    December 28, 2017

    In the previous article, we told that one of the ways to defending against mimikatz-like utilities is disabling the debug privilege for system administrators using Debug Program policy. However, recently…

  • Group PoliciesSecurity

    Defending Windows Domain Against Mimikatz Attacks

    December 7, 2017

    The IT community remembered late June, 2017, due to massive infection of many largest companies and government institutions in Ukraine, Russia, Germany, France and some other countries with a new…

  • Security

    How to Extract Windows User Passwords from Hiberfil.sys

    April 22, 2015

    Mimikatz, a tool that allows to extract Windows credentials  as plain text from LSA, is available since 2012. However, besides a well-covered feature of recovering passwords from the memory of…

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Recent Posts

  • How to Disable NetBIOS and LLMNR Protocols in Windows Using GPO?

    April 9, 2021
  • Enable Windows Lock Screen after Inactivity via GPO

    April 8, 2021
  • How to Create and Manage Scheduled Tasks with PowerShell?

    April 7, 2021
  • Updating Windows VM Templates on VMWare with PowerShell

    April 5, 2021
  • Running Multiple IIS Websites on the Same Port or IP Address

    April 1, 2021
  • Can’t Copy and Paste via Remote Desktop (RDP) Clipboard

    March 31, 2021
  • UAC: This App Has Been Blocked for Your Protection on Windows 10

    March 30, 2021
  • How to Unlock a File Locked by Any Process or SYSTEM?

    March 29, 2021
  • Configuring a Domain Password Policy in the Active Directory

    March 26, 2021
  • Using Native Package Manager (WinGet) on Windows 10

    March 24, 2021

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