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webframp / CVE-2019-19781-firstresponse.md
Last active January 18, 2020 01:00
CVE-2019-19781 - Live Response First Steps from @darkQuassar

CVE-2019-19781 Response steps - Have I been compromised?

Critical Exposure in Citrix ADC (NetScaler) – Unauthenticated Remote Code Execution

Credit: Suggested steps taken from twitter post by @darkQuassar

Just converted to copy/pastable gist for easy access

Check the root user command history




  


  




    


          
    

      

        
        

          

              @SwitHak
          

          

            
                SwitHak
                / 20200114-TLP-WHITE_CVE-2020-0601.md
            
            

              Last active
              November 11, 2025 11:22
            

              
                BlueTeam CheatSheet * CVE-2020-0601 * crypt32.dll | Last updated: 2020-01-21 1817 UTC
              
          

        

      

        

  

      

    
CVE-2020-0601 AKA ChainOfFools OR CurveBall


General


    

  • Microsoft disclosed a vulnerability in their monthly Patch Tuesday referenced under CVE-2020-0601.
    • 

  • The vulnerability was discovered by the U.S. National Security Agency, anounced today (2020-01-14) in their press conference,  followed by a blog post and an official security advisory.
    • 

  • The flaw is located in the "CRYPT32.DLL" file under the C:\Windows\System32\ directory.
    • 



Vulnerability explanation


    

  • NSA description:
    • 

  • NSA has discovered a critical vulnerability (CVE-2020-0601) affecting Microsoft Windows® cryptographic functionality.
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              @jaredcatkinson
          

          

            
                jaredcatkinson
                / Add-ACECertificate.ps1
            
            

              Last active
              February 24, 2024 15:17
            

              
                PowerShell script to query the ACE Certificate Authority (CA) for the CA's public key and add the public key to the system's local cert store
              
          

        

      

        

  

    
    


        



  


  

        

          
          function Add-ACERootCertificate
        

        

          
          {
        

        

          
              param
        

        

          
              (
        

        

          
                  [Parameter(Mandatory = $true)]
        

        

          
                  [string]
        

        

          
                  $ServerIp,
        

        

          
          

        

        

          
                  [Parameter()]
        

        

          
                  [Int32]
        

  





    


  




    


          
    

      

        
        

          

              @jaredcatkinson
          

          

            
                jaredcatkinson
                / Get-Hash.ps1
            
            

              Last active
              March 15, 2024 17:05
            

              
                PowerShell v2 port of the Get-FileHash function. This version of Get-Hash supports hashing files and strings.
              
          

        

      

        

  

    
    


        



  


  

        

          
          function Get-Hash
        

        

          
          {
        

        

          
              <#
        

        

          
              .SYNOPSIS
        

        

          
          
        

        

          
              Get-Hash is a PowerShell Version 2 port of Get-FileHash that supports hashing files, as well as, strings.
        

        

          
          
        

        

          
              .PARAMETER InputObject
        

        

          
          
        

        

          
              This is the actual item used to calculate the hash. This value will support [Byte[]] or [System.IO.Stream] objects.
        

  





    


  




    


          
    

      

        
        

          

              @HarmJ0y
          

          

            
                HarmJ0y
                / PowerView-3.0-tricks.ps1
            
            

              Last active
              December 11, 2025 18:41
            

              
                PowerView-3.0 tips and tricks
              
          

        

      

        

  

    
    


        



  


  

        

          
          # PowerView's last major overhaul is detailed here: http://www.harmj0y.net/blog/powershell/make-powerview-great-again/
        

        

          
          #   tricks for the 'old' PowerView are at https://gist.github.com/HarmJ0y/3328d954607d71362e3c
        

        

          
          

        

        

          
          # the most up-to-date version of PowerView will always be in the dev branch of PowerSploit:
        

        

          
          #   https://github.com/PowerShellMafia/PowerSploit/blob/dev/Recon/PowerView.ps1
        

        

          
          

        

        

          
          # New function naming schema:
        

        

          
          #   Verbs:
        

        

          
          #       Get : retrieve full raw data sets
        

        

          
          #       Find : ‘find’ specific data entries in a data set
        

  





    


  




    


          
    

      

        
        

          

              @jaredcatkinson
          

          

            
                jaredcatkinson
                / Get-InjectedThread.ps1
            
            

              Last active
              October 14, 2025 02:45
            

              
                Code from "Taking Hunting to the Next Level: Hunting in Memory" presentation at SANS Threat Hunting Summit 2017 by Jared Atkinson and Joe Desimone
              
          

        

      

        

  

    
    


        



  


  

        

          
          function Get-InjectedThread
        

        

          
          {
        

        

          
              <# 
        

        

          
              
        

        

          
              .SYNOPSIS 
        

        

          
              
        

        

          
              Looks for threads that were created as a result of code injection.
        

        

          
              
        

        

          
              .DESCRIPTION
        

        

          
              
        

  





    


  




    


          
    

      

        
        

          

              @Neo23x0
          

          

            
                Neo23x0
                / annotations.xml
            
            

              Last active
              September 23, 2025 12:16
            

              
                Sources for APT Groups and Operations Search Engine
              
          

        

      

        

  

    
    


        



  


  

        

          
          <?xml version="1.0" encoding="UTF-8"?>
        

        

          
          <Annotations start="0" num="171" total="171">
        

        

          
            <Annotation about="www.bussink.net/*" timestamp="0x0005d7bc4022b026" href="ChF3d3cuYnVzc2luay5uZXQvKhCm4IqBxPf1Ag">
        

        

          
              <Label name="_cse_turlh5vi4xc"/>
        

        

          
              <AdditionalData attribute="original_url" value="https://www.bussink.net/"/>
        

        

          
            </Annotation>
        

        

          
            <Annotation about="*.thedfirreport.com/*" timestamp="0x0005d76dd5f8679d" href="ChUqLnRoZWRmaXJyZXBvcnQuY29tLyoQnc_hr93t9QI">
        

        

          
              <Label name="_cse_turlh5vi4xc"/>
        

        

          
              <AdditionalData attribute="original_url" value="https://thedfirreport.com/"/>
        

        

          
            </Annotation>