Windows

tripwire

Windows 11: Registry Keys, SMB Protocol, and SystemInfo

Windows 11 was released on October 5, 2021. It has several new installation requirements including, most notably, Secure Boot and a Trusted Platform Module. These features can provide a more secure computing environment, but if you need to virtualize a Windows 11 environment, you will need virtualization software that supports this.

cyphere

How to Change File and Folder Permissions (NTFS) in Windows

There are many cases where you will need to restrict your file or folder security to yourself or a certain group of users. Like, you can assign a specific folder in your computer where your home users can access music, images, or videos, or at the workplace to access work files, documents, or more, but you want to restrict the access permissions of users only to that group of files or folders, not your whole computer system.

tripwire

Microsoft warns of a Windows zero-day security hole that is being actively exploited

In a security advisory, Microsoft has warned that malicious hackers are exploiting an unpatched vulnerability in Windows to launch targeted attacks against organisations. The security hole, dubbed CVE-2021-40444, is a previously unknown remote code execution vulnerability in MSHTML, a core component of Windows which helps render web-based content. According to Microsoft, attacks exploiting the vulnerability have targeted companies via boobytrapped Microsoft Office documents.

cyphere

RDP Security Risks and Encryption Explained

To get a better understanding of how RDP works, think of a remote-controlled toy car. The user presses buttons on the controller and makes the car move forward or backwards. He can do all that and control the car without actually contacting it; the same is the case while using RDP. This article shall help you become aware of RDP security encompassing threats, vulnerabilities and encryption practices.

elastic

ProblemChild: Generate alerts to detect living-off-the-land attacks

In an earlier blog post, we spoke about building your own ProblemChild framework from scratch in the Elastic Stack to detect living off the land (LOtL) activity. As promised, we have now also released a fully trained detection model, anomaly detection configurations, and detection rules that you can use to get ProblemChild up and running in your environment in a matter of minutes.

elastic

How attackers abuse Access Token Manipulation (ATT&CK T1134)

In our previous blog post on Windows access tokens for security practitioners, we covered: Having covered some of the key concepts in Windows security, we will now build on this knowledge and start to look at how attackers can abuse legitimate Windows functionality to move laterally and compromise Active Directory domains. This blog has deliberately attempted to abstract away the workings of specific Windows network authentication protocols (e.g., NTLM and Kerberos) where possible.

Enhancing Event Log Analysis with EvtxEcmd using KAPE

How much time are you spending manually parsing and sorting event logs? With EvtxECmd, digital forensics professionals can optimize Windows event log analysis through its unique mapping feature. Created by Eric Zimmerman, EvtxECmd can be called via the EZParser module in KAPE (another tool created by Eric Zimmerman) to process thousands of events in seconds and create structured CSV files that are much easier to read and manipulate.