CYBERSECURITY JOB HUNTING GUIDE
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      • Install RITA (detects C2 traffic, free)
      • Sandboxes >
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      • SIEM Graylog >
        • Getting started with Graylog
        • Install Graylog
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      • Identifying IoCs with RangeForce
      • What2Log
  • Certifications, Degree & Courses
    • Overview
    • Free & Affordable Resources
    • Pick your cert
    • Skill Assessment
    • Get a cheap degree
  • (Employment) fraud & scams
    • Suspicious Offer
    • Second Offer
    • Certification Scams
    • Fraud with courses
  • Analyzing a job ad
    • The Header
    • Building a Bridge
    • The Responsibilities
    • Desired Skills
    • Preferred Qualification
    • Benefits
    • Own skills vs job ad
    • Dealing with poorly written job ads
  • Resume writing
    • Templates
    • Building a draft
    • Resume in Detail
    • Understand the company
    • ATS and tailoring
    • Last Step
  • Cover letter
    • Writing a cover letter
  • Preparation & Interview
    • Organize your job hunt
    • SWOT Again (interview)
    • Twitter
    • The interview
    • Interview Questions Designed To Trick You
    • Post interview tasks
  • I did it all, but...
    • You are not alone
    • Try Something New
    • Why You'll Fail in Cyber Security
  • Yes, I got a job!
    • Two, or more offers?
    • Continued learning
    • Moving up
    • Lessons learned
  • Conclusion
  • Additional things
    • Reviews (labs, courses, certs) >
      • CompTIA A+
      • CompTIA Network+
      • CompTIA Security+
      • CompTIA Server+
      • CompTIA PenTest+
      • DroneSec DSOC
      • Defensive-Security Purple Labs
      • FAA Part 107
      • INE eCPPT & PTP
      • Letsdefend review
      • Microsoft AZ-500
      • RangeForce SOC 1
      • RangeForce SOC 2
    • Work In A Different Country >
      • The Work Permit
      • Working in the US
      • Studying in the US
      • Studying in Germany
      • Work in a different country
    • Other Resources >
      • Useful Links >
        • All about careers
        • Red resources
        • Blue resources
      • YouTube
      • Twitch
      • Podcasts
      • Books
      • Udemy
      • Thanks
    • Contributors
  • Stefan Waldvogel, where can I help?
  • Home
  • Introduction
    • Things you should know
    • The strategy
  • Paths into Cybersecurity
    • First steps
    • SWOT Analysis
    • How much time do you need?
    • Calculate& Evaluate Knowledge
    • Imposter syndrome
    • Time Management
    • Cybersecurity Domains
    • Cloud Security
    • Financial advice >
      • Credit score
    • The salary
    • Advocacy for underrepresented groups
  • Goal Setting & Career paths
    • Find your career in 5 steps
    • Cybersecurity career options
    • Career finding with LinkedIn
    • Transferable Skills (general)
    • Transferable IT Skills
    • Find a path with job descriptions
    • The I do not know path
    • Do you know “garbage” jobs?
    • “Bonus” knowledge
    • Learning & Motivation
    • Particular vs. any job
    • Pentester path (start)
    • Pen Testing as Career
    • SOC Analyst as career
    • Security Engineer as career
    • Compliance & Risk as career
    • How to find a career (IAM Engineer)
    • Find a company
  • Networking
    • Networking like a pro
    • LinkedIn
    • Referrals & Skills
    • LinkedIn Recruiters >
      • Working with a recruiter
    • Cyber Community
    • Networking University
    • Mentoring
    • Build your personal brand
    • Goal of Networking
  • Hands-on
    • The home lab >
      • Designing a home lab
      • Ways to create a home lab
      • Hypervisors >
        • VirtualBox
        • VMWare Player
        • QEMU/KVM
      • Docker
      • Operating Systems >
        • Kali Linux >
          • Installing Kali with VirtualBox
        • Parrot
        • BlackArch
        • Red Hat Enterprise Linux >
          • RHCSA
        • Security Onion >
          • Installation Security Onion
        • Metasploitable2
        • Ubuntu
        • Windows >
          • Windows in a VM
          • Windows with Virtual Machine Manager
          • Preparing Windows logging
          • John Strand's ADHD VM
      • Firewalls >
        • pfSense Installation
        • pfSense configuration for Security Onion
    • Volunteer Work
    • Note Taking
    • Red labs >
      • Cyberseclabs
      • HackTheBox >
        • HackTheBox Academy
      • INE red side
      • RangeForce
      • Offensive Security
      • TryHackMe
      • Virtual Hacking Labs
    • Red tools & techniques >
      • Atomic Red Team
      • DVWA
      • Metasploit
      • OSINT tools
      • OWASP Juice Shop
    • Blue labs >
      • Blue Team Labs Online
      • DetectionLab (free)
      • INE
      • Letsdefend >
        • LetsDefend password stealer
      • Opensecuritytraining (free)
      • PurpleLabs
      • RangeForce
    • Blue tools >
      • Install a Canary Token
      • CyberChef
      • EDR Lima Charlie installation
      • EDR LimaCharlie configuration
      • EDR Velociraptor (free)
      • EDR Bluespawn (free)
      • DeepBlueCLI (logs Powershell, free)
      • Raccine (ransomware protection, free)
      • Install RITA (detects C2 traffic, free)
      • Sandboxes >
        • Joe's Sandbox
      • SIEM ELK Stack
      • SIEM Graylog >
        • Getting started with Graylog
        • Install Graylog
        • Graylog Windows agent
        • Graylog Linux agent
        • Graylog as application
      • Suricata with RangeForce
      • Identifying IoCs with RangeForce
      • What2Log
  • Certifications, Degree & Courses
    • Overview
    • Free & Affordable Resources
    • Pick your cert
    • Skill Assessment
    • Get a cheap degree
  • (Employment) fraud & scams
    • Suspicious Offer
    • Second Offer
    • Certification Scams
    • Fraud with courses
  • Analyzing a job ad
    • The Header
    • Building a Bridge
    • The Responsibilities
    • Desired Skills
    • Preferred Qualification
    • Benefits
    • Own skills vs job ad
    • Dealing with poorly written job ads
  • Resume writing
    • Templates
    • Building a draft
    • Resume in Detail
    • Understand the company
    • ATS and tailoring
    • Last Step
  • Cover letter
    • Writing a cover letter
  • Preparation & Interview
    • Organize your job hunt
    • SWOT Again (interview)
    • Twitter
    • The interview
    • Interview Questions Designed To Trick You
    • Post interview tasks
  • I did it all, but...
    • You are not alone
    • Try Something New
    • Why You'll Fail in Cyber Security
  • Yes, I got a job!
    • Two, or more offers?
    • Continued learning
    • Moving up
    • Lessons learned
  • Conclusion
  • Additional things
    • Reviews (labs, courses, certs) >
      • CompTIA A+
      • CompTIA Network+
      • CompTIA Security+
      • CompTIA Server+
      • CompTIA PenTest+
      • DroneSec DSOC
      • Defensive-Security Purple Labs
      • FAA Part 107
      • INE eCPPT & PTP
      • Letsdefend review
      • Microsoft AZ-500
      • RangeForce SOC 1
      • RangeForce SOC 2
    • Work In A Different Country >
      • The Work Permit
      • Working in the US
      • Studying in the US
      • Studying in Germany
      • Work in a different country
    • Other Resources >
      • Useful Links >
        • All about careers
        • Red resources
        • Blue resources
      • YouTube
      • Twitch
      • Podcasts
      • Books
      • Udemy
      • Thanks
    • Contributors
  • Stefan Waldvogel, where can I help?
  CYBERSECURITY JOB HUNTING GUIDE

T1546.008 Event Triggered Execution: Accessibility Features

Author: Stefan Waldvogel

LimaCharlie vs. Accessibility Features

Overview:
Description from ATT&CK
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by accessibility features. Windows contains accessibility features that may be launched with a key combination before a user has logged in (ex: when the user is on the Windows logon screen). An adversary can modify the way these programs are launched to get a command prompt or backdoor without logging in to the system.
Two common accessibility programs are C:\Windows\System32\sethc.exe, launched when the shift key is pressed five times and C:\Windows\System32\utilman.exe, launched when the Windows + U key combination is pressed. The sethc.exe program is often referred to as "sticky keys", and has been used by adversaries for unauthenticated access through a remote desktop login screen. (Citation: FireEye Hikit Rootkit)

Depending on the version of Windows, an adversary may take advantage of these features in different ways. Common methods used by adversaries include replacing accessibility feature binaries or pointers/references to these binaries in the Registry. In newer versions of Windows, the replaced binary needs to be digitally signed for x64 systems, the binary must reside in %systemdir%</code>, and it must be protected by Windows File or Resource Protection (WFP/WRP). (Citation: DEFCON2016 Sticky Keys) The Image File Execution Options Injection debugger method was likely discovered as a potential workaround because it does not require the corresponding accessibility feature binary to be replaced.

For simple binary replacement on Windows XP and later as well as and Windows Server 2003/R2 and later, for example, the program (e.g., C:\Windows\System32\utilman.exe) may be replaced with "cmd.exe" (or another program that provides backdoor access). Subsequently, pressing the appropriate key combination at the login screen while sitting at the keyboard or when connected over Remote Desktop Protocol will cause the replaced file to be executed with SYSTEM privileges. (Citation: Tilbury 2014)

Other accessibility features exist that may also be leveraged in a similar fashion: (Citation: DEFCON2016 Sticky Keys)(Citation: Narrator Accessibility Abuse)

On-Screen Keyboard: C:\Windows\System32\osk.exe
Magnifier: C:\Windows\System32\Magnify.exe
Narrator: C:\Windows\System32\Narrator.exe
Display Switcher: C:\Windows\System32\DisplaySwitch.exe
App Switcher: C:\Windows\System32\AtBroker.exe
Source: github.com/redcanaryco/atomic-red-team/tree/master/atomics

Commands:
Invoke-AtomicTest T1546.008 -ShowDetailsBrief​
Invoke-AtomicTest T1546.008 -CheckPrereqs
Invoke-AtomicTest T1546.008 -GetPrereqs
​Invoke-AtomicTest T1546.008 -TestNumbers 1

Invoke-AtomicTest T1546.008 -Cleanup​

Changes:
-none-

​Limitations:
​
Results:
This section has 2 subtests.
​Invoke-AtomicTest T1546.008 -TestNumbers 1, sigma detected
​Invoke-AtomicTest T1546.008 -TestNumbers 2, sigma detected

​Test 1
Picture
Test 2
Picture
Persistence
Next: T1059.003 Windows Command Shell
© 2021. This work is licensed under a CC BY-SA 4.0 license​