·¢ÐÅÈË: Reinhard.bbs@bbs.sjtu.edu.cn (ÕªÐǵÄÈË), ÐÅÇø: cnhacker
±ê  Ìâ: Yu Hwang ËùÖøÖ®Æƽâ½Ìѧ¼¯ [5/13] -- Alex ÕûÀí(ת¼
·¢ÐÅÕ¾: Òûˮ˼Դվ (Fri Apr 25 19:43:14 1997)
תÐÅÕ¾: Lilac!ustcnews!ustcnews!sjtunews!sjtubbs
³ö  ´¦: bbs.sjtu.edu.cn


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      ÈôÄúÓöµ½µÚÒ»ÖÖʱ,ÄÇÎÒ½¨ÒéÄúÓÃS-ICEÖеÄLDR.EXE½«ÃÜÂëÖ÷µµÏÈÔØÈë¼ÇÒäÌåÖÐ
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      ÒÔÖØе½¸Õ¸ÕÄÇ¡õ ×îºÃÊÇÏñ ÆƽâÈëÃŵÚËļ¯ÄÇÑù ¼Ç¼  Gxx µÈ
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                                                         Gxx
                                                         Pxx
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C:\>DEBUG HA.EXE
-U
251B:0000 BA6E44        MOV     DX,446E    <----¸Õ½«HA.EXE ÓÃLDRÔØÈëʱ Äã¿É¿´µ½
251B:0003 2E            CS:                     ·´°×Ìõ×´ Ò²¾ÍÊÇ»¹Ã»Ö´ÐÐ
251B:0004 89160602      MOV     [0206],DX
251B:0008 B430          MOV     AH,30
251B:000A CD21          INT     21
251B:000C 8B2E0200      MOV     BP,[0002]
251B:0010 8B1E2C00      MOV     BX,[002C]
251B:0014 8EDA          MOV     DS,DX
251B:0016 A37B00        MOV     [007B],AX
251B:0019 8C067900      MOV     [0079],ES
251B:001D 891E7500      MOV     [0075],BX
-U
251B:0021 892E8D00      MOV     [008D],BP
251B:0025 E80D01        CALL    0135
251B:0028 C43E7300      LES     DI,[0073]  <-----ÏÖÔÚÎÒÒѽ«ÓαêÒƵ½´ËλÖಢÏÂ
251B:002C 8BC7          MOV     AX,DI           (HERE) S-ICE±ãÖ´ÐдÓ251B:0000µ½
251B:002E 8BD8          MOV     BX,AX            251B:0028λַÖÐ
251B:0030 B9FF7F        MOV     CX,7FFF       °¢¹þ..Äã¿ÉÒÔÏ RS ¿´¿´DOSϵÄ×´¿ö
251B:0033 FC            CLD                   ÒÉ..»¹Ã»³öÏÖÃÜÂë»­Ãæ ÔÙÕÒÏÂÒ»¸öÊÔ
251B:0034 F2            REPNZ                 ÊÔ¿´
251B:0035 AE            SCASB
251B:0036 E33C          JCXZ    0074
251B:0038 43            INC     BX
251B:0039 26            ES:
251B:003A 3805          CMP     [DI],AL
251B:003C 75F6          JNZ     0034
251B:003E 80CD80        OR      CH,80
-U
251B:0041 F7D9          NEG     CX
251B:0043 890E7300      MOV     [0073],CX
251B:0047 B90200        MOV     CX,0002
251B:004A D3E3          SHL     BX,CL
251B:004C 83C310        ADD     BX,+10
251B:004F 83E3F0        AND     BX,-10
251B:0052 891E7700      MOV     [0077],BX
251B:0056 8CD2          MOV     DX,SS
251B:0058 2BEA          SUB     BP,DX
251B:005A 8B3E1639      MOV     DI,[3916]
251B:005E 81FF0002      CMP     DI,0200
-U
251B:0062 7307          JNB     006B
251B:0064 BF0002        MOV     DI,0200
251B:0067 893E1639      MOV     [3916],DI
251B:006B B104          MOV     CL,04
251B:006D D3EF          SHR     DI,CL
251B:006F 47            INC     DI
251B:0070 3BEF          CMP     BP,DI
251B:0072 7303          JNB     0077
251B:0074 E97901        JMP     01F0
251B:0077 8BDF          MOV     BX,DI
251B:0079 03DA          ADD     BX,DX
251B:007B 891E8500      MOV     [0085],BX
251B:007F 891E8900      MOV     [0089],BX
-U
251B:0083 A17900        MOV     AX,[0079]
251B:0086 2BD8          SUB     BX,AX
251B:0088 8EC0          MOV     ES,AX
251B:008A B44A          MOV     AH,4A
251B:008C 57            PUSH    DI
251B:008D CD21          INT     21
251B:008F 5F            POP     DI
251B:0090 D3E7          SHL     DI,CL
251B:0092 FA            CLI
251B:0093 8ED2          MOV     SS,DX
251B:0095 8BE7          MOV     SP,DI
251B:0097 893E1639      MOV     [3916],DI
251B:009B FB            STI
251B:009C 33C0          XOR     AX,AX
251B:009E 2E            CS:
251B:009F 8E060602      MOV     ES,[0206]
-U
251B:00A3 BF6A3A        MOV     DI,3A6A
251B:00A6 B99267        MOV     CX,6792
251B:00A9 2BCF          SUB     CX,DI
251B:00AB FC            CLD
251B:00AC F3            REPZ
251B:00AD AA            STOSB
251B:00AE B400          MOV     AH,00
251B:00B0 CD1A          INT     1A
251B:00B2 89167F00      MOV     [007F],DX
251B:00B6 890E8100      MOV     [0081],CX
251B:00BA 33ED          XOR     BP,BP
251B:00BC B86C44        MOV     AX,446C
251B:00BF 8ED8          MOV     DS,AX
251B:00C1 BE0000        MOV     SI,0000
-U
251B:00C4 BF1800        MOV     DI,0018
251B:00C7 E8DB00        CALL    01A5
251B:00CA 2E            CS:                 <------¸úÉÏÃæÏàͬ²½Öè ÏÂHERE Ö´Ðе½
251B:00CB 8E1E0602      MOV     DS,[0206]          ÕâÒ»ÐРÓàRS À´¿´ »¹ÊÇûÓÐ
251B:00CF 2E            CS:
251B:00D0 C606B70172    MOV     BYTE PTR [01B7],72
251B:00D5 2E            CS:
251B:00D6 C606A60100    MOV     BYTE PTR [01A6],00
251B:00DB FF367100      PUSH    [0071]
251B:00E7 FF366B00      PUSH    [006B]
251B:00EB FF366900      PUSH    [0069]
251B:00EF 9A0800D92B    CALL    2BD9:0008
251B:00F4 50            PUSH    AX         <------ÏÂHERE ÍÛ...¾Í³öÏÖÃÜÂëÁË ËùÒÔ
251B:00F5 9A27061B25    CALL    251B:0627         ¿Ï¶¨ÊÇ ÕâÒ»¸öCALLÓÐÎÊÌâ Ã»¹Ø
251B:00FA B86D44        MOV     AX,446D           Ïµ ÏÈÓñʼÇÆðÀ´ ÖØÐÂÔØÈë Ö±½Ó
251B:00FD 8ED8          MOV     DS,AX             Ö´Ðе½Õâ¸öCALL 2BD9:0008µÄÉÏ
251B:00FF BE0800        MOV     SI,0008           ·½,(ÒòΪҪ½øÈë CALL 2BD9:0008
251B:0102 BF0800        MOV     DI,0008          ÖÐÕÒ³öÄĸöÊÇÕæÕýºô½ÐÃÜÂëµÄµØ·½
                                                 ) ËùÒÔ½«Óαê·ÅÔÚ 251B:00EB ÖÐ
251B:0105 E89D00        CALL    01A5             Ï HERE È»ááÏ RS ÒÉ..¸Õ¸ÕÓÐÃÜ
-GEB                                             Âë,ÏÖÔÚȴûÓРËùÒԿ϶¨ÊÇÕâ¸ö
                                                 CALL 2BD9:0008 ÓÐÎÊÌâ ÏÂT2 ×·
                                                 ½øÈ¥¡õÃæ
                              ³ÌʽÈëÏÂÁбí
-U
2BD9:0008 55            PUSH    BP
2BD9:0009 8BEC          MOV     BP,SP
2BD9:000B 83EC0C        SUB     SP,+0C
2BD9:000E 56            PUSH    SI
2BD9:000F C646FB05      MOV     BYTE PTR [BP-05],05
2BD9:0013 9A5C241B25    CALL    251B:245C
2BD9:0018 8846F9        MOV     [BP-07],AL   <----ÂýÂýÕÒ³öÀ´ÂÞ..µ±È»Ò²Òª×ö±Ê¼Ç
                                                  Í¬ÉÏ ÏÂHERE, RSÒÉ..»¹ÊÇûÊÂ

2BD9:001B 9A860BBE42    CALL    42BE:0B86
2BD9:0020 33C0          XOR     AX,AX        <----ÍÛ.Ò»Ö´Ðе½Õâ¾ÍÎÊÃÜÂëÂÞ...
2BD9:0022 BA2500        MOV     DX,0025           Ã»¹Øϵ ÖØÐÂÀ´¹ý Õâ´ÎÎÒÃÇÖªµÀ
2BD9:0025 50            PUSH    AX                Õâ¸öCALLÓÐÎÊÌâ ÎÒÃǽ«Õⶼ¸Ä
2BD9:0026 52            PUSH    DX                Îª NOP ¿ÉÓàE 2BD9:001B Ö±½Ó
2BD9:0027 33D2          XOR     DX,DX             ½«9A860BBE42¸ÄΪ9090909090ÊÔ
-G18                                              ÊÔ¿´ ¸ÄºÃáá ÏÂGÖ´Ðп´¿´...
                                                  ÎØ...ÎØ..ÖÕ춴󹦸æ³É ¶øÇÒÓÖ
                                                  Ã»ÃÜÂë»­ÃæÒ®...

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 ÎһὫ´ËÐÅUPLOADµ½90Íø¿½±´ÐĵÃÇøÖРÈôÐÅÇøµÄÅóÓÑÃÇÏëÕÒHA.EXEÀ´Á·Á· ¿ÉÒÔµ½
   £Í£É£Ä£É£­£²¡¡£Ï£Ò¡¡£Í£É£Ä£É£­£± Öеģգӣţҡ¡£Õ£Ð£Ì£Ï£Á£ÄÇøÖд«

        £Ä£Å£Â£Õ£Ç£­£µ£®£Á£Ò£Ê  ¼´ÊDZ¾µµÂÞ£®£®£®£®£¡

 ´ó¸Å˵Ã÷ CALL 42BE:0B86 ¡õµÄÄÚÈÝ Óкܶà CALL xxxx:xxxx ÓÐÐËȤ Ò²¿ÉÊÔÊÔ¿´à¸!
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       Çë¶à¶àËͣǣÁ£Í£ÅÀ´°É£¡ºÃÈÃÎÒÏ´ÎÓиöÖ÷Ìâ Ò²Ë³±ã¿ÉÒÔÍæÒ»ÍæÀ´´ò·¢Ê±¼ä

       ±¾ÆƽâÈëÃÅÕâ´ÎµÄÄÚÈÝÄã¾õµÃÈçºÎÄØ£¿ÓÐûÓнϳäʵһЩÄØ£¿£¿

       Ï£ÍûÎÒдµÄÿһ¼¯¶¼ÄÜ»ñµÃÄãµÄϲ»¶¼°¶ÔÄãÓÐËù°ïÖú ×¥µ½ÓãµÄ¸Ð¾õ²»´í°É£¡

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   Ï¼¯»á¸üÉîÈëµÄÌÖÂÛร®£®±ð×ß¿ªà¸£®£®£®£¡

       Ö»ÒªÎÒÒ»ÓÐеÄÆƽâÈëÃÅ Äú¿ÉÒÔÈ¥£Í£É£Ä£É£­£²¡¡£Ï£Ò¡¡£Í£É£Ä£É£­£±

               ½Ô¿ÉÕÒµ½à¸£®£®£®ÇëÁôÒ⣮£®£®


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                                                 Reinhard Young

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