Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

Windows Update Result in Memory Leak and Domain Controllers Crashing

Windows administrators have cautioned that after applying the KB5035855 and KB5035857 updates, released as part of March 2024 Patch Tuesday for Windows Server 2016 and Windows Server 2022, domain controllers running the updated versions of Windows Server may experience crashes and reboots. Affected servers are freezing and rebooting stemming from a memory leak in the Local Security Authority Subsystem Service (LSASS), leading to continually increasing memory usage over time.

Access This Computer From the Network - Best Practices for DC and Member Servers

This policy enables users on the network to establish connections with the computer, and it’s necessary for several network protocols such as Server Message Block (SMB), NetBIOS, Common Internet File System (CIFS), and Component Object Model Plus (COM+).

LAN Manager authentication level best practices

LAN Manager (LM) authentication level is a security setting that determines how Windows systems authenticate network connections. It is a legacy authentication protocol developed by Microsoft for use in older versions of Windows network operations. There are three main protocols involved in LAN Manager Authentication: The LAN Manager Authentication Level setting allows you to choose which protocols your system will use or accept for authentication.

WSUS : Windows Server Update Services (WSUS) installation on Windows Server 2022 - Part 2

In the previous article, we covered some fundamental information you should know before installing WSUS in your infrastructure. Just to refresh your memory, WSUS stands for Windows Server Update Service, and it is used for the centralized update and reporting of Microsoft-based products. This includes Windows, Windows Servers, Exchange, SQL, SharePoint, and others.

Securing DCOM with SDDL: Exploring Machine Access Restrictions for Enhanced Protection

SDDL, or Security Descriptor Definition Language, defines the string format that the ConvertSecurityDescriptorToStringSecurityDescriptor and ConvertStringSecurityDescriptorToSecurityDescriptor functions use to describe the security settings of an object in Windows as a text string. Think of it like a simple language for defining who can access an object (like a file, folder, or registry key) and what they can do with it.

Critical Windows Event IDs to Monitor

Like most organizations, your company likely invested in various Microsoft products. The Microsoft ecosystem provides businesses with nearly every kind of technology necessary, from workstation operating systems to Azure to Windows 365 that includes cloud-native versions of their traditional Office tools and the communication platform Teams. However, attackers are just as invested in the Microsoft ecosystem.

Kernel Introspection from Linux to Windows

The cybersecurity landscape is undergoing a significant shift, moving from security tools monitoring applications running within userspace to advanced, real-time approaches that monitor system activity directly and safely within the kernel by using eBPF. This evolution in kernel introspection is particularly evident in the adoption of projects like Falco, Tetragon, and Tracee in Linux environments.

Ultimate Guide to Windows Task Scheduler Hardening

Windows Task Scheduler, previously known as Scheduled Tasks, is a powerful job scheduler built into Microsoft Windows. Its primary function is to launch computer programs or scripts at specific times or intervals predetermined by the user. Introduced as System Agent in Microsoft Plus! for Windows 95, Task Scheduler Windows has evolved into a core component of the Windows operating system.