Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022  
Original source:  
Threat: Ransom.Satana  
Vulnerability: Code Execution  
Description: Satana searches for and loads a DLL named "wow64log.dll" in Windows\System32. Therefore, we can drop our own DLL to intercept and terminate the malware pre-encryption. The exploit dll will simply display a Win32API message box and call exit(). The exploit DLL must export "InterlockedExchange" function or it fails with error. We do not need to rely on hash signature or third-party product, the malwares own flaw will do the work for us. Endpoint protection systems and or antivirus can potentially be killed prior to executing malware, but this method cannot as theres nothing to kill the DLL just lives on disk waiting. From defensive perspective you can add the DLLs to a specific network share containing important data as a layered approach. All basic tests were conducted successfully in a virtual machine environment.  
Family: Satana  
Type: PE32  
MD5: 46bfd4f1d581d7c0121d2b19a005d3df  
Vuln ID: MVID-2022-0593  
Disclosure: 05/07/2022  
Video PoC URL:  
1) Compile the following C code as "wow64log.dll" as x64  
2) Place the DLL in Windows\System32  
3) Run the malware  
#include "windows.h"  
//By malvuln   
//Purpose: Exploit Satana  
//MD5: 46bfd4f1d581d7c0121d2b19a005d3df  
Author is NOT responsible for any damages whatsoever by using this software or improper malware  
handling. By using this code you assume and accept all risk implied or otherwise.  
//compile as x64  
//gcc -c wow64log.c   
//gcc -shared -o wow64log.dll wow64log.o   
//DLL must live under Windows\System32 dir  
BOOL APIENTRY DllMain(HINSTANCE hInst, DWORD reason, LPVOID reserved){  
switch (reason) {  
MessageBox(NULL, "Code Exec", "by malvuln", MB_OK);  
return TRUE;  
extern __declspec(dllexport) WINBASEAPI LONG WINAPI InterlockedExchange (LONG volatile *Target, LONG Value){  
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