Exemple #1
0
        private void DiveByteSimple(ByteString candidate, int level, int searchLength, int currentUtf8Value = 0)
        {
            int levelp = level + 1;

            byte[] charsetBytes;
            if (currentUtf8Value > 127 && _mappingBytes.ContainsKey(currentUtf8Value))
            {
                charsetBytes = _mappingBytes[currentUtf8Value];
            }
            else
            {
                charsetBytes     = _validBytes;
                currentUtf8Value = 0;
            }

            foreach (byte b in charsetBytes)
            {
                if (levelp < searchLength)
                {
                    candidate.Append(b);
                    DiveByteSimple(candidate, levelp, searchLength, (currentUtf8Value << 8) + b);
                    candidate.Cursor -= 1;
                    continue;
                }
                candidate.Replace(b);
                if (candidate.CRC32Check())
                {
                    _logger.LogResult(candidate.ToString());
                }
            }
        }
        private void DiveByteSimple(ByteString candidate, int level, int searchLength, bool shouldInterruptAtFirstResult = false)
        {
            int levelp = level + 1;

            foreach (byte b in _validBytes)
            {
                if (_interruptThreads)
                {
                    break;
                }

                if (levelp < searchLength)
                {
                    candidate.Append(b);
                    DiveByteSimple(candidate, levelp, searchLength, shouldInterruptAtFirstResult);
                    candidate.Cursor -= 1;
                    continue;
                }
                candidate.Replace(b);
                if (candidate.CRC32Check())
                {
                    if (shouldInterruptAtFirstResult)
                    {
                        _logger.LogResult($"False positive found: 0x{candidate.HexSearchValue:x}.");
                        _hexExtract       = candidate.HexSearchValue;
                        _interruptThreads = true;
                    }
                    else
                    {
                        _logger.LogResult(candidate.ToString());
                    }
                }
            }
        }
Exemple #3
0
        private void DiveByteSimple(ByteString candidate, int level, int searchLength)
        {
            int levelp = level + 1;

            foreach (byte b in _validBytes)
            {
                if (levelp < searchLength)
                {
                    candidate.Append(b);
                    DiveByteSimple(candidate, levelp, searchLength);
                    candidate.Cursor -= 1;
                    continue;
                }
                candidate.Replace(b);
                if (candidate.CRC32Check())
                {
                    _logger.LogResult(candidate.ToString());
                }
            }
        }
Exemple #4
0
        private void DiveByte(ByteString candidate, int level, int searchLength, int[] levelTable, int patternPosition)
        {
            int levelp = level + levelTable[level];

            foreach (byte b in _validBytes)
            {
                if (levelp < searchLength)
                {
                    candidate.Replace(b);
                    candidate.Cursor += levelTable[level];
                    DiveByte(candidate, levelp, searchLength, levelTable, patternPosition);
                    candidate.Cursor -= levelTable[level];
                    continue;
                }
                candidate.Replace(b);
                if (candidate.CRC32Check())
                {
                    _logger.LogResult(candidate.ToString());
                }
            }
        }