谁给讲一下下面这段exe2bat

@echo off
echo q | debug>nul
echo Bj@jzh`0X-`/PPPPPPa(DE(DM(DO(Dh(Ls(Lu(LX(LeZRR]EEEUYRX2Dx=>sleep.com
echo 0DxFP,0Xx.t0P,=XtGsB4o@$?PIyU WwX0GwUY Wv;ovBX2Gv0ExGIuht6>>sleep.com
echo T}{z~~@GwkBG@OEKcUt`~}@MqqBsy?seHB~_Phxr?@zAB`LrPEyoDt@Cj?>>sleep.com
echo pky_jN@QEKpEt@ij?jySjN@REKpEt@jj?jyGjN@SEKkjtlGuNw?p@pjirz>>sleep.com
echo LFvAURQ?OYLTQ@@?~QCoOL~RDU@?aU?@{QOq?@}IKuNWpe~FpeQFwH?Vkk>>sleep.com
echo _GSqoCvH{OjeOSeIQRmA@KnEFB?p??mcjNne~B?M??QhetLBgBPHexh@e=>>sleep.com
echo EsOgwTLbLK?sFU`?LDOD@@K@xO?SUudA?_FKJ@N?KD@?UA??O}HCQOQ??R>>sleep.com
echo _OQOL?CLA?CEU?_FU?UAQ?UBD?LOC?ORO?UOL?UOD?OOI?UgL?LOR@YUO?>>sleep.com
echo dsmSQswDOR[BQAQ?LUA?_L_oUNUScLOOuLOODUO?UOE@OwH?UOQ?DJTSDM>>sleep.com
echo QTqrK@kcmSULkPcLOOuLOOFUO?hwDTqOsTdbnTQrrDsdFTlnBTm`lThKcT>>sleep.com
echo @dmTkRQSoddTT~?K?OCOQp?o??Gds?wOw?PGAtaCHQvNntQv_w?A?it\EH>>sleep.com
echo {zpQpKGk?Jbs?FqokOH{T?jPvP@IQBDFAN?OHROL?Kj??pd~aN?OHROd?G>>sleep.com
echo Q??PGT~B??OC~?ipO?T?~U?p~cUo0x>>sleep.com
sleep.com>sleep.exe
echo wait %1 seconds:
sleep.exe %1000
del sleep.com
del sleep.exe

一段代码首先定向到sleep.com，这个程序是一个ＤＯＳ　１６位的应用程序，使用ＤＯＳ功能调用，对编码的内容进行控制台输出，然后输出的结果再定向到sleep.exe中，生成真正的ｗｉｎｄｏｗｓ程序。
这种编码的好处是不依赖debug程序就可以还原一个ｅｘｅ文件。而且比使用ｄｅｂｕｇ还原exe 批处理文件的大小要小很多。编码的风格类似于缓冲区溢出采用的特殊编码格式，目标是把不可视变成可视字符。回避特殊字符，不过sleep.com 汇编代码比较难懂，谁给分析一下。

没有玩过，不过帮你贴段代码
#include <stdio.h>
#include <string.h>
#define M 65279
char *msg="GOOD_LUCK";
void help(void);
char exe2bat(char *,char *);
int main(int argc,char **argv)
{
  if(argc==1)
  {
    help();
  }
  exe2bat(argv[1],argv[2]);
  return 0;
}
void help()
{
  printf("\nWritten by W.Z.T <==Don't be lazy,Just go ahead==>\n\n");
  printf("exe2bat.exe input.exe output.bat\n");
  exit(0);
}
char exe2bat(char *s_f,char *t_f)
{
  FILE *s_fp,*t_fp;
  char *s_fe=s_f;
  char *t_fe=t_f;
  char c;
  char ch;
  long lenth;
  int i=1,k=256;
  if((s_fp=fopen(s_fe,"rb"))==NULL)
  {
    printf("Can't open the file %s.\n",s_fe);
    exit(0);
  }
  if((t_fp=fopen(t_fe,"w+"))==NULL)
  {
    printf("Can't create the file %s.\n",t_fe);
    exit(0);
  }
  fseek(s_fp,0,SEEK_END);
  lenth=ftell(s_fp);
  fseek(s_fp,0,SEEK_SET);
  printf("%ld,%x\n",lenth,lenth);
  if(lenth>=M)
  {
    printf("The exe file's lenth must be <= M-1\n");
    exit(0);
  }
  fputs("@echo e ",t_fp);
  fprintf(t_fp,"%04x ",k);
  while(!feof(s_fp))
  {
    k++;
    c = fgetc(s_fp);
    if(( unsigned char ) c<= ( unsigned char )15)
        fprintf(t_fp,"0",c);
    fprintf(t_fp,"%x ",(unsigned char)c);
    if(i%16==0)
    {
        fputs(">>sgl\n",t_fp);
        fputs("@echo e ",t_fp);
        fprintf(t_fp,"%04x ",k);
    }
    i++;
  }
  if(lenth%16!=0)
    fputs(">>%tmp%\\sgl\n",t_fp);
  fputs("@echo rcx>>sgl\n",t_fp);
  fprintf(t_fp,"@echo %x>>sgl\n",lenth,t_fp);
  fputs("@echo n tthacker>>sgl\n",t_fp);
  fputs("@echo w>>sgl\n",t_fp);
  fputs("@echo q>>sgl\n",t_fp);
  fputs("@debug<sgl>nul\n",t_fp);
  fputs("@del sgl\n",t_fp);
  fputs("@ren tthacker ",t_fp);
  fprintf(t_fp,"%s>>sgl\n",s_fe);
  fputs("@",t_fp);
  fprintf(t_fp,"%s",s_fe);
  fclose(s_fp);
  fclose(t_fp);
  puts(msg);
  return 0;
}

这东西的特点就是把一个.com文件转成了.txt文件，因为要转成可见字符，所以代码都被重新调整了，但含义不变(类似于代码优化？)，象测试反病毒软件用的EICAR.TXT其实就是一个可直接执行的COM文件。这种代码确实太难懂了。似乎听人说过有程序可以自动转换，可惜没有见过。