Share Smart Crypt Decryptor 1.5.2.2

[wongerlt]

Sharing is caring

 

This is similar topic to just with it u can decrypt 1.5.2.2 version files.

 

 

Everything same just source code different:

main.cpp

#include <string>
#include <iostream>
#include <fstream>
#include <map>
#include "hook.h"

typedef BOOL(WINAPI *_ReadFile) (HANDLE hFile, char *lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped);
_ReadFile true_ReadFile;

typedef HANDLE(WINAPI *_CreateFileW) (LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile);
_CreateFileW true_CreateFileW;


std::map<int, DWORD> Handles;

void fileputcontents(const std::string& name, char* content, DWORD size, bool append = false) {
	std::ofstream outfile;
	if (append)
		outfile.open(name, std::ios::app | std::ios::binary);
	else
		outfile.open(name, std::ios::binary);
	outfile.write(content, size);
}

int file = 0;
BOOL WINAPI new_ReadFile(HANDLE hFile, char *lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped) {

	bool result = true_ReadFile(hFile, lpBuffer, nNumberOfBytesToRead, lpNumberOfBytesRead, lpOverlapped);
	std::map<int, DWORD>::iterator it = it = Handles.find((int)hFile);
	if (it != Handles.end()) {
		std::string filename;
		file++;
		filename = "decrypted_file.txt";
		if (file == 1) {
			fileputcontents(filename, lpBuffer, nNumberOfBytesToRead);	
		}
		else {	
			fileputcontents(filename, lpBuffer, nNumberOfBytesToRead, true);
		}
	}
	
	return result;

}

HANDLE WINAPI new_CreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile) {

	HANDLE true_handle = true_CreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
	if (wcsstr(lpFileName, L"SysString-e.dat") != 0) {
		std::map<int, DWORD>::iterator iter = Handles.find((int)true_handle);
		Handles.insert(std::make_pair((int)true_handle, (DWORD)0));
	}
	else {
		std::map<int, DWORD>::iterator iter = Handles.find((int)true_handle);
		if (iter != Handles.end())
			Handles.erase(iter);
	}
	return true_handle;

}

bool SetHooks(void)
{
	FARPROC addr;

	HANDLE hEngine = LoadLibraryA("engine.dll");
	if ((addr = GetProcAddress(LoadLibraryA("kernel32.dll"), "ReadFile")) == 0)
		return false;
		true_ReadFile = (_ReadFile)splice((unsigned char*)addr, new_ReadFile);

	if ((addr = GetProcAddress(LoadLibraryA("kernel32.dll"), "CreateFileW")) == 0)
		return false;
		true_CreateFileW = (_CreateFileW)splice((unsigned char*)addr, new_CreateFileW);
		return true;

}

int load(void)
{
	return 0;
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{

	if (fdwReason == DLL_PROCESS_ATTACH)
	{
		if (!SetHooks()) {
			return false;
		}
	}
	return true;
}

 

hook.h

https://pastebin.com/V90efrHJ

hook.cpp

https://pastebin.com/LG92sS4b

 

1. CFF Explorer part: in ogg.dll file.

https://prnt.sc/sl91ylUn1B18

https://prnt.sc/NkkBPbailjZH

 SmartDecrypt.dll must be before npkscrypt.dll

 

Compiled Version: vs2017 (v141 xp)

https://drive.google.com/file/d/1J4_OQS0dq5UD119xHi06Ve5028Ht-IWg/view?usp=sharing

If u want decrypt example interface.u/xdat/or other file then just rename it to SysString-e.dat and run l2.exe (you will get error just click ok) after all in system folder must appear decrypted_file.txt. (this file will be encrypted with regular l2encrypt (413/111 and etc..)

Edited February 5 by wongerlt

[maxicroma]

Hello there after follow to the letter your guide im stuck with the final file called "decrypted_file.txt" ,i used this tool to decrypt the regular encrypt (413). 

also i attached the file wich im try to decrypt

https://www.mediafire.com/file/b6xqfaov3yea91y/systemmsg-e.dat/file

 

[wongerlt]

9 minutes ago, maxicroma said:

Hello there after follow to the letter your guide im stuck with the final file called "decrypted_file.txt" ,i used this tool to decrypt the regular encrypt (413). 

also i attached the file wich im try to decrypt

https://www.mediafire.com/file/b6xqfaov3yea91y/systemmsg-e.dat/file

 

 

Decrypted:

https://www.mediafire.com/file/0bj7p05cl64q1at/systemmsg-e.dat/file

[maxicroma]

wow its working ,maybe you can give me a little hand of how to do it :D? (i have a lot files to decompile to ) ,maybe my regular decompiler its not working?

[wongerlt]

4 hours ago, maxicroma said:

wow its working ,maybe you can give me a little hand of how to do it :D? (i have a lot files to decompile to ) ,maybe my regular decompiler its not working?

Rename decrypted_file.txt to orginal one and then u can use l2 file editor

[maxicroma]

5 hours ago, wongerlt said:

Rename decrypted_file.txt to orginal one and then u can use l2 file editor

Well ,i do this ,but first i need to decrypt it with a regular decryter no?

this its the file that i get after use the SmartDecrypt.dll on the ogg.dll

https://www.mediafire.com/file/2q606t5jqkz2cx7/decrypted_file.txt/file

First of all sorry for double post .

Finally it working for me ,i screw up on the CFF part ,i forgot to check the "create new section"

 

[DeusDoEgito]

tem como fazer um video?

 

[Dunk3L]

On 2/5/2024 at 9:30 AM, wongerlt said:

Sharing is caring

 

This is similar topic to just with it u can decrypt 1.5.2.2 version files.

 

 

Everything same just source code different:

main.cpp

#include <string>
#include <iostream>
#include <fstream>
#include <map>
#include "hook.h"

typedef BOOL(WINAPI *_ReadFile) (HANDLE hFile, char *lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped);
_ReadFile true_ReadFile;

typedef HANDLE(WINAPI *_CreateFileW) (LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile);
_CreateFileW true_CreateFileW;


std::map<int, DWORD> Handles;

void fileputcontents(const std::string& name, char* content, DWORD size, bool append = false) {
	std::ofstream outfile;
	if (append)
		outfile.open(name, std::ios::app | std::ios::binary);
	else
		outfile.open(name, std::ios::binary);
	outfile.write(content, size);
}

int file = 0;
BOOL WINAPI new_ReadFile(HANDLE hFile, char *lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped) {

	bool result = true_ReadFile(hFile, lpBuffer, nNumberOfBytesToRead, lpNumberOfBytesRead, lpOverlapped);
	std::map<int, DWORD>::iterator it = it = Handles.find((int)hFile);
	if (it != Handles.end()) {
		std::string filename;
		file++;
		filename = "decrypted_file.txt";
		if (file == 1) {
			fileputcontents(filename, lpBuffer, nNumberOfBytesToRead);	
		}
		else {	
			fileputcontents(filename, lpBuffer, nNumberOfBytesToRead, true);
		}
	}
	
	return result;

}

HANDLE WINAPI new_CreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile) {

	HANDLE true_handle = true_CreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
	if (wcsstr(lpFileName, L"SysString-e.dat") != 0) {
		std::map<int, DWORD>::iterator iter = Handles.find((int)true_handle);
		Handles.insert(std::make_pair((int)true_handle, (DWORD)0));
	}
	else {
		std::map<int, DWORD>::iterator iter = Handles.find((int)true_handle);
		if (iter != Handles.end())
			Handles.erase(iter);
	}
	return true_handle;

}

bool SetHooks(void)
{
	FARPROC addr;

	HANDLE hEngine = LoadLibraryA("engine.dll");
	if ((addr = GetProcAddress(LoadLibraryA("kernel32.dll"), "ReadFile")) == 0)
		return false;
		true_ReadFile = (_ReadFile)splice((unsigned char*)addr, new_ReadFile);

	if ((addr = GetProcAddress(LoadLibraryA("kernel32.dll"), "CreateFileW")) == 0)
		return false;
		true_CreateFileW = (_CreateFileW)splice((unsigned char*)addr, new_CreateFileW);
		return true;

}

int load(void)
{
	return 0;
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{

	if (fdwReason == DLL_PROCESS_ATTACH)
	{
		if (!SetHooks()) {
			return false;
		}
	}
	return true;
}

 

hook.h

https://pastebin.com/V90efrHJ

hook.cpp

https://pastebin.com/LG92sS4b

 

1. CFF Explorer part: in ogg.dll file.

https://prnt.sc/sl91ylUn1B18

https://prnt.sc/NkkBPbailjZH

 SmartDecrypt.dll must be before npkscrypt.dll

 

Compiled Version: vs2017 (v141 xp)

https://drive.google.com/file/d/1J4_OQS0dq5UD119xHi06Ve5028Ht-IWg/view?usp=sharing

If u want decrypt example interface.u/xdat/or other file then just rename it to SysString-e.dat and run l2.exe (you will get error just click ok) after all in system folder must appear decrypted_file.txt. (this file will be encrypted with regular l2encrypt (413/111 and etc..)

Hi, I got the error "invalid pe file possible reason: no export table present" in CFF when I try to add the dll file in L2.exe, any idea what's happening?. btw I used vs2013 

I appreciate your support

[Victory]

1 hour ago, Dunk3L said:

Hi, I got the error "invalid pe file possible reason: no export table present" in CFF when I try to add the dll file in L2.exe, any idea what's happening?. btw I used vs2013 

I appreciate your support

Okay I'm pretty sure there was already compiled one shared by @wongerlt.

Yeah there you go.

 

[Dunk3L]

14 minutes ago, Victory said:

Okay I'm pretty sure there was already compiled one shared by @wongerlt.

Yeah there you go.

 

I got it...

Edited 2 hours ago by Dunk3L