Last active
May 16, 2017 20:33
-
-
Save brad-anton/264cc0be50b527627024647656fe40ae to your computer and use it in GitHub Desktop.
A simple test to check the behavior of WannaCry's Kill Switch functionality
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| /* | |
| A simple test to check the behavior of WannaCry's Kill Switch | |
| functionality. Compile with Visual Studio. | |
| @brad_anton | |
| Example Run: | |
| Set DNS to 208.67.222.222 | |
| C:\Users\user\Desktop\WannaCryTest\Debug>WannaCryTest.exe | |
| GOOD: WannaCry would have been aborted! | |
| Add hosts file (C:\Windows\System\drivers\etc\hosts) entry: | |
| 127.0.0.1 www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com | |
| C:\Users\user\Desktop\WannaCryTest\Debug>WannaCryTest.exe | |
| NOT GOOD: WannaCry would have executed and further infected!!! | |
| */ | |
| #include "stdafx.h" | |
| #include <Windows.h> | |
| #include <wininet.h> | |
| #pragma comment(lib, "wininet.lib") | |
| void main() | |
| { | |
| HANDLE hInt; | |
| HANDLE hUrl; | |
| hInt = InternetOpen(NULL, INTERNET_OPEN_TYPE_DIRECT, | |
| NULL, NULL, 0); | |
| hUrl = InternetOpenUrl(hInt, L"http://www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com", NULL, 0, INTERNET_FLAG_RELOAD | INTERNET_FLAG_NO_CACHE_WRITE, NULL); | |
| if (hUrl) | |
| { | |
| printf("GOOD: WannaCry would have been aborted!"); | |
| InternetCloseHandle(hUrl); | |
| } | |
| else { | |
| printf("NOT GOOD: WannaCry would have executed and further infected!!!"); | |
| } | |
| InternetCloseHandle(hInt); | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment