diff --git a/README.md b/README.md
index f18bbb4..eacc534 100644
--- a/README.md
+++ b/README.md
@@ -2,11 +2,12 @@
 
 ## Description
 
-This repository detects a system vulnerable to `CVE-2022-21907` (**CVSS:3.1 9.8**), protects against this vulnerability if desired and exploit it with python and powershell (a payload is available). I offer 2 powershell codes in 1 line.
+ 1. This repository detects a system vulnerable to `CVE-2022-21907` (**CVSS:3.1 9.8**) and protects against this vulnerability if desired. I offer 2 powershell codes in 1 line.
+ 2. I propose a python script and powershell script to attack a vulnerable IIS Web Server (perform a DOS attack to crash (blue screen) the server).
 
-## Codes
+## Detection and protection
 
-### Only detect
+### Detect only
 
 ```powershell
 $ErrorActionPreference="SilentlyContinue";$_=($(Get-ItemProperty -Path HKLM:\System\CurrentControlSet\Services\HTTP\Parameters\  -Name EnableTrailerSupport).EnableTrailerSupport -or $(Write-Host "Not vulnerable to CVE-2022-2190")) -and $(Write-Host "$env:computername vulnerable to CVE-2022-2190 !")
@@ -16,9 +17,9 @@ $ErrorActionPreference="SilentlyContinue";$_=($(Get-ItemProperty -Path HKLM:\Sys
 $ErrorActionPreference="SilentlyContinue";$key=Get-ItemProperty -Path HKLM:\System\CurrentControlSet\Services\HTTP\Parameters\  -Name EnableTrailerSupport;if($key -AND $key.EnableTrailerSupport -ne 0){echo "$env:computername vulnerable to CVE-2022-2190 !"}else{echo "Not vulnerable to CVE-2022-2190"}
 ```
 
-### With protection
+### Detect and protect
 
-Run these scripts **as administrator** to protect your computer/server.
+Run this powershell line **as administrator** to protect your computer/server.
 
 ```powershell
 $ErrorActionPreference="SilentlyContinue";$_=($(Get-ItemProperty -Path HKLM:\System\CurrentControlSet\Services\HTTP\Parameters\  -Name EnableTrailerSupport).EnableTrailerSupport -or $(Write-Host "Not vulnerable to CVE-2022-2190")) -and ($(Write-Host "$env:computername vulnerable to CVE-2022-2190 ! Change EnableTrailerSupport value to 0") -or $(Set-ItemProperty -Path HKLM:\System\CurrentControlSet\Services\HTTP\Parameters\  -Name EnableTrailerSupport -Value 0))
@@ -28,10 +29,22 @@ $ErrorActionPreference="SilentlyContinue";$_=($(Get-ItemProperty -Path HKLM:\Sys
 $ErrorActionPreference="SilentlyContinue";$key=Get-ItemProperty -Path HKLM:\System\CurrentControlSet\Services\HTTP\Parameters\  -Name EnableTrailerSupport;if($key -AND $key.EnableTrailerSupport -ne 0){echo "$env:computername vulnerable to CVE-2022-2190 ! Change EnableTrailerSupport value to 0";Set-ItemProperty -Path HKLM:\System\CurrentControlSet\Services\HTTP\Parameters\  -Name EnableTrailerSupport -Value 0}else{echo "Not vulnerable to CVE-2022-2190"}
 ```
 
-## Exploit
+## Hack: DOS - BlueScreen
 
-```text
-AAAAAAAAAAAAAAAAAAAAAAAA,AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA&AA&**AAAAAAAAAAAAAAAAAAAA**A,AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA,AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA,AAAAAAAAAAAAAAAAAAAAAAAAAAA,****************************AAAAAA, *, ,
+[![DOS attack with powershell](https://img.youtube.com/vi/kaZrfpsh3ds/0.jpg "DOS attack with powershell")](https://www.youtube.com/watch?v=kaZrfpsh3ds)
+
+### Python
+
+```bash
+python3 CVE202221907.py
+# OR
+./CVE202221907.py
+```
+
+### Powershell
+
+```powershell
+powershell CVE-2022-21907.ps1
 ```
 
 ## Sources