[Suchen] Packet Block Pogramm !!!

hatte damals nen packet bot in fiesta geschrieben, hier mal bissl code, m�sste eig. noch gehen.

in dem teil wo Mysend ist macht ihr eine abfrage if TEMP_BUFFER[2] = blubb <- euer packet Header welches geblockt werden soll, dann return 0; und fertig.

Wenns nichtmehr gehen sollte gucke ich Sp�t, weil muss jez los zur Arbeit cya.

wenn nicht hookt selbst�ndig - Send_ glaube das war die unverschl�sselte Send routine oder SendCrypt_ kA mehr... m�sst ihr selber in ollydbg nachgucken, indem ihr die addresse mal hookt und schaut ob wenn ihr was im Chat schreibt das Packet unverschl�sselt ist.

Code:

 
DWORD SearchPattern(char* pattern,DWORD start_offset ,DWORD ende)
{
        //strtoul 
   //     if (start_offset==0)
    //            start_offset=0x00401000;
        DWORD offset=start_offset; //in olly nachgucken

		//DWORD ende =0x0161A587; //in olly nachgucken
        DWORD start=offset; //yep
        DWORD backoffset;
        DWORD size =strlen(pattern)-1;
        DWORD foundoffset=0; //0=not found !
 
        char * pEnd=pattern; //next letter position
        while(1)
        {
                char &myposition=*(char*)offset;
                //�berpr�fen
                if ((pEnd[1]!='x'))
                {
                        char temp=(char)strtoul(pEnd, &pEnd, 0x10);
                        if (temp==myposition)
                        {
                                if (foundoffset==0)
                                {
                                        foundoffset=offset;
                                }
                        }
                        else
                        {
                                //everything from beginning
                                pEnd=pattern;
                                if (foundoffset != 0)
                                        offset=foundoffset;
                                foundoffset=0;
                        }
                }
                else
                {
                 //WILDCARE DON'T HANDLE
                 pEnd=&pEnd[2]; //2 weiter " x" <- yep
                }
                offset++; //immer 1 byte dazu
                if (((DWORD)pEnd-(DWORD)pattern>=size)||(offset>=ende))
                        break; //ende der schleife
        }
 
        return foundoffset;
}

DWORD CryptFunc_ = SearchPattern("30 04 32 66 FF 01 66 81 39 F3 01",0x00400000,0x007FFFFF);
DWORD Send_ = SearchPattern("6A 00 50 8D 43 08 50 51 E8 x x x x",0x00400000,0x007FFFFF);

DWORD Sendcrypt_ = SearchPattern("55 8B EC 8B 45 0C 85 C0 53 8B D9 0F 84 x x x x",0x00400000,0x007FFFFF);
DWORD ECXhook_ = SearchPattern("8B 8B x x x x E8 x x x x C7 83 x x x x x x x x",0x00400000,0x007FFFFF);

Code:

unsigned char Encrypt[] = {
0x07, 0x59, 0x69, 0x4A, 0x94, 0x11, 0x94, 0x85, 0x8C, 0x88, 0x05, 0xCB,
0xA0, 0x9E, 0xCD, 0x58, 0x3A, 0x36, 0x5B, 0x1A, 0x6A, 0x16, 0xFE, 0xBD,
0xDF, 0x94, 0x02, 0xF8, 0x21, 0x96, 0xC8, 0xE9, 0x9E, 0xF7, 0xBF, 0xBD,
0xCF, 0xCD, 0xB2, 0x7A, 0x00, 0x9F, 0x40, 0x22, 0xFC, 0x11, 0xF9, 0x0C,
0x2E, 0x12, 0xFB, 0xA7, 0x74, 0x0A, 0x7D, 0x78, 0x40, 0x1E, 0x2C, 0xA0,
0x2D, 0x06, 0xCB, 0xA8, 0xB9, 0x7E, 0xEF, 0xDE, 0x49, 0xEA, 0x4E, 0x13,
0x16, 0x16, 0x80, 0xF4, 0x3D, 0xC2, 0x9A, 0xD4, 0x86, 0xD7, 0x94, 0x24,
0x17, 0xF4, 0xD6, 0x65, 0xBD, 0x3F, 0xDB, 0xE4, 0xE1, 0x0F, 0x50, 0xF6,
0xEC, 0x7A, 0x9A, 0x0C, 0x27, 0x3D, 0x24, 0x66, 0xD3, 0x22, 0x68, 0x9C,
0x9A, 0x52, 0x0B, 0xE0, 0xF9, 0xA5, 0x0B, 0x25, 0xDA, 0x80, 0x49, 0x0D,
0xFD, 0x3E, 0x77, 0xD1, 0x56, 0xA8, 0xB7, 0xF4, 0x0F, 0x9B, 0xE8, 0x0F,
0x52, 0x47, 0xF5, 0x6F, 0x83, 0x20, 0x22, 0xDB, 0x0F, 0x0B, 0xB1, 0x43,
0x85, 0xC1, 0xCB, 0xA4, 0x0B, 0x02, 0x19, 0xDF, 0xF0, 0x8B, 0xEC, 0xDB,
0x6C, 0x6D, 0x66, 0xAD, 0x45, 0xBE, 0x89, 0x14, 0x7E, 0x2F, 0x89, 0x10,
0xB8, 0x93, 0x60, 0xD8, 0x60, 0xDE, 0xF6, 0xFE, 0x6E, 0x9B, 0xCA, 0x06,
0xC1, 0x75, 0x95, 0x33, 0xCF, 0xC0, 0xB2, 0xE0, 0xCC, 0xA5, 0xCE, 0x12,
0xF6, 0xE5, 0xB5, 0xB4, 0x26, 0xC5, 0xB2, 0x18, 0x4F, 0x2A, 0x5D, 0x26,
0x1B, 0x65, 0x4D, 0xF5, 0x45, 0xC9, 0x84, 0x14, 0xDC, 0x7C, 0x12, 0x4B,
0x18, 0x9C, 0xC7, 0x24, 0xE7, 0x3C, 0x64, 0xFF, 0xD6, 0x3A, 0x2C, 0xEE,
0x8C, 0x81, 0x49, 0x39, 0x6C, 0xB7, 0xDC, 0xBD, 0x94, 0xE2, 0x32, 0xF7,
0xDD, 0x0A, 0xFC, 0x02, 0x01, 0x64, 0xEC, 0x4C, 0x94, 0x0A, 0xB1, 0x56,
0xF5, 0xC9, 0xA9, 0x34, 0xDE, 0x0F, 0x38, 0x27, 0xBC, 0x81, 0x30, 0x0F,
0x7B, 0x38, 0x25, 0xFE, 0xE8, 0x3E, 0x29, 0xBA, 0x55, 0x43, 0xBF, 0x6B,
0x9F, 0x1F, 0x8A, 0x49, 0x52, 0x18, 0x7F, 0x8A, 0xF8, 0x88, 0x24, 0x5C,
0x4F, 0xE1, 0xA8, 0x30, 0x87, 0x8E, 0x50, 0x1F, 0x2F, 0xD1, 0x0C, 0xB4,
0xFD, 0x0A, 0xBC, 0xDC, 0x12, 0x85, 0xE2, 0x52, 0xEE, 0x4A, 0x58, 0x38,
0xAB, 0xFF, 0xC6, 0x3D, 0xB9, 0x60, 0x64, 0x0A, 0xB4, 0x50, 0xD5, 0x40,
0x89, 0x17, 0x9A, 0xD5, 0x85, 0xCF, 0xEC, 0x0D, 0x7E, 0x81, 0x7F, 0xE3,
0xC3, 0x04, 0x01, 0x22, 0xEC, 0x27, 0xCC, 0xFA, 0x3E, 0x21, 0xA6, 0x54,
0xC8, 0xDE, 0x00, 0xB6, 0xDF, 0x27, 0x9F, 0xF6, 0x25, 0x34, 0x07, 0x85,
0xBF, 0xA7, 0xA5, 0xA5, 0xE0, 0x83, 0x0C, 0x3D, 0x5D, 0x20, 0x40, 0xAF,
0x60, 0xA3, 0x64, 0x56, 0xF3, 0x05, 0xC4, 0x1C, 0x7D, 0x37, 0x98, 0xC3,
0xE8, 0x5A, 0x6E, 0x58, 0x85, 0xA4, 0x9A, 0x6B, 0x6A, 0xF4, 0xA3, 0x7B,
0x61, 0x9B, 0x09, 0x40, 0x1E, 0x60, 0x4B, 0x32, 0xD9, 0x51, 0xA4, 0xFE,
0xF9, 0x5D, 0x4E, 0x4A, 0xFB, 0x4A, 0xD4, 0x7C, 0x33, 0x02, 0x33, 0xD5,
0x9D, 0xCE, 0x5B, 0xAA, 0x5A, 0x7C, 0xD8, 0xF8, 0x05, 0xFA, 0x1F, 0x2B,
0x8C, 0x72, 0x57, 0x50, 0xAE, 0x6C, 0x19, 0x89, 0xCA, 0x01, 0xFC, 0xFC,
0x29, 0x9B, 0x61, 0x12, 0x68, 0x63, 0x65, 0x46, 0x26, 0xC4, 0x5B, 0x50,
0xAA, 0x2B, 0xBE, 0xEF, 0x9A, 0x79, 0x02, 0x23, 0x75, 0x2C, 0x20, 0x13,
0xFD, 0xD9, 0x5A, 0x76, 0x23, 0xF1, 0x0B, 0xB5, 0xB8, 0x59, 0xF9, 0x9F,
0x7A, 0xE6, 0x06, 0xE9, 0xA5, 0x3A, 0xB4, 0x50, 0xBF, 0x16, 0x58, 0x98,
0xB3, 0x9A, 0x6E, 0x36, 0xEE, 0x8D, 0xEB, 0x00
};

int __cdecl _EncryptSend(char* buf,int len,int key)
{
  int v3; // edx@1
  int result; // eax@5

  v3 = 0;
  if ( len <= 0 )
  {
    result = (int)&buf;
  }
  else
  {
    do
    {
      *(BYTE *)(v3 + buf) ^= Encrypt[key++];
      if (key >= 0x1F3)
        key = 0;
      ++v3;
    }
    while ( v3 < len );
    result = (int)&buf;
  }
  return result;
}
DWORD Start=0;
DWORD keyOld=9999;
DWORD key;
DWORD keyhookback=CryptFunc_+0x06;
int Naked Keyhook(){

	_asm{
XOR BYTE PTR DS:[EDX+ESI],AL

	pushad
MOVZX EAX,WORD PTR DS:[ECX]
	MOV key, EAX
	}

	if((keyOld == 0x1F2)||(keyOld == 9999)||(keyOld != key)&&(keyOld >= (key-0x01))&&(keyOld <= (key+0x01))){
		keyOld = key;
	}
	printf("key: %x\n",key);
	printf("KeyOld: %X\n",keyOld);
	_asm{
			popad

	INC WORD PTR DS:[ECX]
			JMP keyhookback
	}
}

char* TEMP_BUFFER= (char*) malloc(1024);
int WINAPI MySend(SOCKET s, char *buf, int len, int flags)   
{

	if((len > 0)&&(len < 50)){
	memcpy(TEMP_BUFFER,buf,len);
	//Print('S',len, TEMP_BUFFER);
	key-=len-0x02;
	printf("keyTZZZZZZ:%x\n",key);
	printf("LENGTH %d\n",len);
_EncryptSend((char*)&TEMP_BUFFER[1],(len-0x01),key);
Print('S',len, TEMP_BUFFER);
}
	return oSend(s, buf, len, flags);
}

Code:

DWORD Intercept(int instruction, DWORD lpSource, DWORD lpDest, int len)
{
	DWORD realtarget;
	LPBYTE buffer = new BYTE[len];

	memset(buffer,0x90,len); 

	if (instruction != INST_NOP && len >= 5)
	{
		buffer[(len-5)] = instruction;
		DWORD dwJMP = (DWORD)lpDest - (lpSource + 5 + (len-5));
		memcpy(&realtarget,(void*)(lpSource+1),4);
		realtarget = realtarget+lpSource+5;
		memcpy(buffer + 1 + (len-5),&dwJMP,4);
	}
	if (instruction == SHORT_JZ)
	{
		buffer[0]=instruction;
		buffer[1]=(BYTE)lpDest;
	}
	if (instruction == INST_BYTE)
	{
		buffer[0]=(BYTE)lpDest;
	}
	MemcpyEx(lpSource, (DWORD) buffer, len);
	delete[] buffer;
	return realtarget;
}

oSend = (tSend)DetourFunction((PBYTE)send, (PBYTE)MySend);
Intercept(INST_JMP,CryptFunc_,(DWORD)&Keyhook,6);