code: public boolean exists() {
  		try {
  			read();
  			return true;
  		} catch (FileFormatException e) {
  			return false;
  		} catch (IOException e) {
  			logger.error(e);
  			return false;
  		}
  	}
docs: Tries to read the PE signature of the current file and returns true, iff
  it was successfull.
  
  @return true if the file has the PE signature, false otherwise.