How to mitigate the Microsoft MSHTML remote code execution zero-day

The video tutorial discusses the use of office files in targeted attacks against Microsoft users, highlighting the vulnerability CVE 2021-40444. It emphasizes the importance of user education and suggests mitigation techniques, including using Microsoft Defender and ASR rules. The tutorial provides detailed steps for configuring group policy and registry settings to enhance security and protect against zero-day attacks.

What is the primary vulnerability discussed in the video related to Microsoft Office files?

• Phishing attacks via social media

• Malicious use of Windows Explorer Preview Pane

• Unauthorized access to email accounts

• Data leakage through cloud services

Which file types are mentioned as being used in targeted attacks?

• PDF and TXT

• MP3 and WAV

• Doc, Docx, Docm, and RTF

• JPEG and PNG

What is the first line of defense against opening malicious documents?

• Installing a firewall

• Educating users

• Using a VPN

• Regular software updates

What additional protection does Will Dorman suggest using?

• Using Microsoft Defender ASR rules

• Disabling all macros

• Installing third-party antivirus

• Blocking all internet access

What is the purpose of Microsoft Defender ASR rules?

• To enhance system performance

• To block office child processes

• To allow remote desktop access

• To enable faster internet browsing

What registry change can prevent ActiveX controls from running?

• Disabling all network connections

• Enabling automatic updates

• Setting values for Internet zones

• Changing desktop wallpaper

Why is it important to assess your risk posture regarding zero-day attacks?

• To enhance customer satisfaction

• To reduce software costs

• To determine the need for ASR rules

• To improve employee productivity