
                              (C) .., ᪢ 1992
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                 BOOTCAT -    -  -!

                                 

     ன⢮   ࠡ  ⮢ ᮢ  ᭮  ( 筮 
浪 믮塞 ⢨)  ᠭ .   ⠫ ।⠢ -
 筥 ⮩ 饩 ᯥ䨪樨.

     .  ⮢   १,  ⮬ ᭮ 
 - 㫨 ࠡ⪨ 뢠,  ।  ᭮  筮 -
 ࠡ稪 뢠 13h, ⢥⢥  ࠦ ᪥. 㣮 -
室  - ⠭騪,  騩 ࠢ  㧪  騩
ன⢮        (⠭  १,  墠 뢠 
..),  ⠪ ।  ࠦ ⪮ ᪠. ஬ ⮣,   -
ঠ ணࠬ   , ᮢ⭮ ᯮ㥬 ࠧ묨 ﬨ.
ࠣ, 易  䠧 ,   ஥   㫨.
     ⠭騪 砥 ࠢ,   ⮢  ࠡ -
⮢묨  ணࠬ  BIOS (஢ ன⢠,  ନ஢  
⭮騥  BIOS    ⠡ 뢠),  DOS   㦥-
.  BIOS  㦠    ᪠  ᥪ  (..    )   
0000:7C00.  ⠭騪 㬥蠥  ᪮쪮  ࠧ 㯭 DOS -
  (᫮   0040:0013),  ᮧ    १-
,  㤠 ᢮   । ࠢ १⭮ . ⥬ -
      த  (᫨  ),     ०
 - 室   MBR (᫨   ࠭).  墠뢠  室
뢠 (     ⮬  뢠  -
  BIOS;  ᥩ  ⮤ ५).  ᫨   稪 㧮, 
 ४,    १뢠   祭 稪. 
   ⠭ ࠧ ⪨ ,  ⮡      
⮬.  ,   ᪠ 室   MBR ( ᠬ⥫쭮 -
  㭪樨), த ଠ 㧪.

     . ਠ쭮     易   㭪樮-
.   ᯮ  ᪥ ⮢      墮.  
易⥫쭮 뢠  ᥪ  MBR (      ࠢ-
)  ⮬  ᥣ 1 ᥪ, .. 512 .  ᮤন த-
  (᫨  ),  ⠪ 室   MBR (᫨  ࠭); 
     ࠭ ࠧ묨 ᯮᮡ.   ࠭-
  ࠭ ⠤ ( ६  ᮢ) ᯮᮡ -   墮  
᢮        ᡮ (bad).  墮
 ᪥  ࠭ ⠪  ⥫쭮 (筮 40-) ஦,  ᯥ-
쭮  ⮣ ଠ஢ ᮬ.   ⠫   
楫 㬥  .   ⠪ ᮢ 墮 ᮤন   ࠢ-
 ᥪ  MBR,   1 ᥪ  뢠 ஦.  -
  墮  ᥣ 뢠     ୥  ⠫  (筮
᫥   ᥪ ),  ० -  ᫥ ᥪ   ( -
,    㤥 ᯮ짮). 㬥, ᯮ   
  ଠ ᪥,   設⢮ ᮢ  㦤 ᥡ ஢ઠ 
 뢠 墮  ஬  䨪஢  ,  ।  
楬   .   ⪮ ᪥ 墮  ࠭  ᯮ㥬 
 MBR   ࠧ ( ஢  ).    ᠭ  न
ᥪ஢   ⠭⭮ :  樫/஭/ᥪ.    
᪨ ᯮᮡ ࠭ - ਬ,   䠩. , 墮  
⢮ -  ⮬ 砥   ᠬ⥫쭮 믮 㭪樨 -
⮣ ᥪ  MBR.
     ஬ ᮡ⢥ ணࠬ 砫쭮 㧪,  ᥪ  MBR ࠭-
 㦥 ଠ,  ᯮ㥬 㣨 ணࠬ. ࠬ⭮ ᠭ
   ࠭ Partition Table  ࠦ MBR, BPB -  -
 .
     ⥣ ࠦ  ࠧ ᮢ ࠧ筠.  ⪠ ࠦ ⪮
᪠  (  ᥣ)    ࠧ      ⠭.  ᪥
筮  ࠦ  ࠡ稪  뢠 13h  饭  ,  祬 
 ᮢ -     (  ࠢ,  ⥭    -
/). 祬, 墠뢠 뢠 13h  易⥫쭮 - , -
ਬ,    ⠩   ஦ DOS, ᫥ 祣 墠 뢠
21h,   ࠪ୮   䠩-⮢ ᮢ.   । -
 ஢,   뫠  ᪥ 㦥 ࠦ ⨬ ᮬ (   -
묨 㣨)  ᯥ樠쭮 ⪥   , ਢ  ᠭ.
     ⪨ ࠦ ᪥   饭 (   樨 -
)     ⥭ᨢ ࠡ ਢ  १ 㢥祭 
   ᪮ 権. ⮡  ⮣,   
饭    ᪥ ஢  ᪮    ࠧ ᪥,
᫨  祭.   ᯥ稢  ࢠ    ⪠  
  ᮢ襭  譨  .
     ᫥ 墠 뢠   㪠뢠    ਭ騩  
ࠡ稪.   ⮬ ᥣ   ࠧ  ,   稭
ᬥ饭 筮     ⨯ , ⠪   ᯮ짮-
   䨪樨  ਢ  ᠭ.  ᪮쪮  ⭮,  
 ࠪ⨪ ⮢  뫠   饭 ..ᮩ.
       㦥 㦤   ⮬,     ⮢ .
 䠩 ᮢ   襩 ࠪ⨪,  ன ᭮-
  䨪.   ,  ⮢ ᮢ   -
  ,  ਣ  ⮩  楫,   ਮ⠥ ᪮쪮
ࠪ ࠪ.   ࠪ⨪ ࠧ ⮢   ᯮ-
  稭:  (1) ⢮ ᥪ஢,    ᮬ    ᪥,
   ,   த  墮,  ᥪ  室  
MBR  ⠢訥  ᯮ짮묨  ᥪ  ᮧ  ᮬ  ᥢᡮ
஢  䠩;  (2) ⢮    ;  (3) 
ᮢ  ஦ 墮⮬ - ⢮ ,     -
    ᮧ १⭮  (ࠪ⨪,  ଠ쭮 
ਥ,  ᮫⭮ ᮤঠ⥫쭠).  ᠭ   .  
  ࠧ㬭      ⮢   ࠪ⨪,
祬  ᥪ,    .

     . ᭮ ᯮᮡ ᪨஢ ᮢ  饥 ६ - ᯮ-
 stealth-孮.  ⨬ ନ ᥩ  ⢮ ࠧ-
  ᪨஢ 堭 ( ଠ쭮),  ⮬  ।
筮 ।.  Stealth-孮  ୮  뢠 -
㯭  ।,      㫨 ࠦ .
,   ,   ⫨稥  㣨  ᪨஢,  ।  
譥 室⢮,   ᮢ १⮢ ࠡ ணࠬ  ࠦ
 ࠦ . ⭥,  stealth-孮  ᮢ-
㯭  ।,        ஫ 饭 ணࠬ 
⪠ ᪠  ,  ஢ ᠬ ᮬ  㣨 ணࠬ-
 (ਬ, DOS) ᫥⢨  ,   饭  -
஢ , .. ਭ   ⮬, ⮡  १ -
  ணࠬ   ⠪   筮 ᮢ  ⥬,   뫨 ,
᫨   ⪨  뫨 ஢. 㬥,  㤮⢮
⮬ । ஡筮,     砨 筮 樨,
 ஫ 饭   ᥬ  ஢  ⪠  (  
,   ⮫쪮  ᪥),  㫨   樨 (ਬ,  ⮫쪮
⥭),     ᫥⢨ (     ᮪  ).
  㤥 뢠 ⠬ stealth-孮,  , ᯮ騩 -
  - stealth-ᮬ.   stealth-ᮢ,  ⭮, -
 ᢮ 㦥  ᬮ  ,    .
     Stealth-堭  ⮢ ᮢ ࠦ 筮  ⮬,   -
樨 ⥭ (  ), ⭮騥  ᥪ   , ॠ-
 ࠡ稪 뢠 13h  ᥪ,  ᮤঠ騩 室   MBR.
    ।  ஢    ॠ-
樨. ,  ࠢ,   ᪨. ᭮ ( ) १-
⮬ ⠪ ᪨஢  ,   ⥭ ᥪ  ࠦ -
設 짮⥫ 㢨 ( ணࠬ ) ࠭  ᮬ  室
ᥪ,     , 室 ⠬  ⢨⥫쭮.
     ᫥⢨ ࠬ⭮ ॠ樨 stealth-堭    -
 䥪⮢ (㪠  ᠭ),   ᬮਬ   ࠪ-
.  砥  ⮬,  ᫥ 砭 ࠡ 뢠 13h -
  cx   dx  ᮤঠ 室 祭,   㪠뢠  ࠭ 
(騩 ࠡ稪 ࠭  ࠭,     ணࠬ  ⨬
). ன 䥪, 쬠 ,  - ॠ樨 ᥩ
樨 楫,  ⠪   ⥭ ᪮쪨 ᥪ஢    ᥪ-
஢,  ᫥  ⮬ ( ᪥  FAT)  ᥪ, ᫥騥 
 ࠭ .   ᪨஢窠...
     ஬ ᯮ짮 stealth-孮,    㣨 ᪨஢-
 ।,   㦥 .    ।, 㤭 -
쭮 ,  ⭮ ⢨ ⥫ ⥪⮢ ப (뢮-
   ࠭ ᮮ饭 ),   ⠪ ஢  ࠦ ᥪ
⪮ 室   ࠪ묨 ⥪⠬  (砫  ,  ᮤঠ騥
OEM ID -  ଠ,    ,  ᮤঠ騥 筮  䠩 
⥪ ᮮ饭). ᫨  ⥫   ࠪ ⥪⮢ ப, 
ਢ    ᠭ  㪢쭮 (⢮ ஡  ,  ᫨
⥪ ଠ஢).  , 騥 稪 DOS,    -
,    ⠢  ⥫ . ⭮ ᪨஢ ⠪
ࠧ  祭 㤭 ⫨  譥 ,  ᪮    室
 ⫨砥  ⮪  .
      ᫥ ਥ, 㤭 㦥 ᮢ ணࠬ묨 ।⢠,
室 ० ᥣ ⬥ ᯮᮡ  ⮢ ᮢ 室 ࠧ-
 த १ ஦ 뢠 13h, ᪮  ஦ ᥣ -
⠭   맮 뢠   १    室.  -
 १ ஦  㣨 뢠 ( .. 40h), ᪮  -
   ࠡ稪  BIOS.  ਭ樯  ⢮  ᫥
६   ᯮᮡ  ᮢ ஢ ﭨ 䫠 -
஢  ஢ ⪨ ࠧ த ॢ஢    뢠
13h  BIOS ஢  맮 ( ⮤ TP-ᮢ).   ⮩  ⥣ਨ
⭮ ஢  ( ⮢   祬-  ୠ),    ⠪
 ⨮⫠ 䮪.  , ⠭騪  ⠭  ࠡ 
 ,  ⪠ 室  ⫠稪  १  ਢ
 ।᪠㥬 ᫥⢨  直 ᯥ樠  .  設⢠
ᮢ ⠭騪  ࠧ  । ࠢ  ⠭⭮ ᯮ 
(0000:7C00),  ⪠ ஢ (室  ⫠稪)  १  
 모   .  ᠭ  ⮬ ᯥ樠쭮  .
     ᮡ ᫥ ᪠  ᯮᮡ ⤥ ⮢ ᮢ 릨 
⥯ १㧪 (Alt-Ctrl-Del),  ⠪   ࠭஢ ⪨ 
  ᮢ 室 ᯮ짮 몫祭 ⠭ (  "Reset" -
뢠 ᥩ ᮬ).  ⢨,  믮塞  ᫥ Alt-Ctrl-Del,
    ᠬ묨  ࠧ묨 ( ⪨ ࠧ  । 饭  BIOS,
⮡ ⮬   㧨   ᭮,   ᠬ⥫쭮 樨 -
㧪  襭 ࠭,  ⥭  ᪮ ), ⠪    -
 堭   室.  祬,  ⠪ ᮢ 祭  ,  
ᥩ    .

      ⮢ ᮢ,     ,   㤨㠫
 ⨢. 㬥,   ,     -
⥧ 客:  祬 ७ 㤨/䥪, ⥬ ० ⨢ -
.  㡥 ⮢  뫨 襩  ।,  
᫮ Disk Killer, "㡨" ᪨, ⨫   ⠭
ଠ樨.   䥪 뫨 쬠 ਢ: 騩  ࠭ -
稪,  䥪⭠ ⭠ 窠  ᪮ ०,   쭮 "Happy
Birthday Joshy"  ,   ࠭ ⨭  梥   ࠬ窠. 
ᮦ,  ।   㤥᪨ ᮢ ⭮ ந⢠ ⥫쭮
 ,    ᢨ९. ,  ⥭  -
 १⮬ 樠쭮 ⠭  ࠦ 饥  襣 ⢠
( ⮬ ᫥, , 㤥⢠)  ...
      饥  ६  ⮢ ᮢ 䥪  筮  -
  ࠭ - 㬭 ᮮ饭 (  㧪  । -
࠭  ᪠),   㤨䥪 祬- ᮢᥬ  .  ⨢
⢨   뢭묨,    ࠧ ࠧ蠥 ଠ, 㭨-
     ⥬  (,  MBR,  FAT, ୥ ⠫), 
  ।묨,      ଠ   .
᫥,  ४  ࠭ । 짮⥫ 㦤,  -
⥫쭮  ,  ⠪    㤭 㦨  ࠢ,   
  ﭨ騩 ࠪ (ਬ, ਮ᪨   
  樭᪮ ०   ⥫쭮   寧  -
⢨, 祬  ६ 㭨⮦).

       -  ࠧ த  ( ᭮ ⨢),
 ।ᬮ७ ᯥ樠쭮 ஬ .      ᫥⢨  
訡,    ᥣ 믮 ।  । ⠭ (ਬ,
 ⨯ ᪥),  祬 ᫥ ⥫쭮 . 襬 ᠬ ࠪ
 .
       騥 䥪 易  㡥  -
஢,        ᪥,  ஬ DS/DD (360 ).  , 
 㪨 Stoned ࠭  ࠭ 室   ᥪ  0/1/3.
 ᪥ DS/DD  ᫥ ᥪ ୥ ⠫,   QD -  ।-
,    HD - 砫.   ⠪  ⭮ ⠫ ,  ࠭騥
墮  ᥪ 39/1/9(8).   DS/DD  (।)᫥ ᥪ ᪥,   -
   ,    ᥪ   (   㤥  ),    
  ࠢ묨,     80-஦ ᪥  ᥪ  
।  .   ,     ᪥ -
ࠧ⮩ 誨 (த Karateka)  ᫥ ᥪ DS/DD  -
 ;  ⮬ 砥  ᬮ ⠫   㦠 䠩  -
நᨬ묨  -   墮 .
     筠    ⪮ ᪥,     ࠭
墮  MBR  砫 ࢮ ࠧ (ᮡ  -  ਬ ⮣  
Stoned -  ᥪ 0/0/7).   ⠭⭮ ࠧ⪥   ᯮ㥬
.     ᪠  ⠭⭮ ࠧ⪮ ॢ ࠧ -
 ࠧ  MBR,    ⮬ 墮 뢠  FAT. ஬ ⮣, 
᪮ ࠩ ࠭  ⮩  ᢮ 㦥 ଠ.
       ⭮,  易  ୮ ᥪ 0/1/3  ᮡ
0/0/7,  砥  ⮬,  , ᯮ騥  ᥪ, 稭 -
⮢   㣮.   ࠦ ⠪ ᮬ  ᪠,  㦥  ࠦ
㣨  ᠬ,   ᥪ 0/0/7 ( 0/1/3) ७  ࢮ
, ᠭ ⠬ ࠢ   MBR ,   ⠥ -
.    ᫥  ६   裡  ⨬  室  ᥪ 0/0/7
(ᮡ  0/0/6), ⥬ ,   祬   ᥤ.
        ࠦ ᪥  类 饭   १ -
 13h.  設⢮   ࠢ쭮 ࠡ뢠    ᪥
(㭪 16h), ⠪   ࠧ  । 믮 樨  ⮬
ᥣ  ⥫ १.  ⮬ DOS   ᬥ ᪥-
,      쬠  ᫥⢨ (ਬ,  㤥 ᯮ짮-
  FAT).
     㬥,   ⮢  ,  墠뢠騥  뢠 13h,  
䫨⮢  ࠧ த ⠭묨 ᪮묨  ࠩࠬ  (⨯  "800"
A.Pasquale)  ⠭묨 ଠ⠬ ᪥  ।᪠㥬묨 ᫥⢨ﬨ.
 ᠭ   㪠뢠,  ᪫祭 ᯥ᪨ 砥.
        䥪⮢  (㦥 ᠭ )  - ࠬ⭮
ᯮ짮 stealth-孮.

     .  ⮬ ࠧ ᠭ ᮡ࠭ ࠧࠧ ଠ,   -
襤  ।騥 ࠧ.   ᢥ    ६ 㦥, ।-
 த⢥ 裡, ᢥ, 祭    䮫쪫, 
⠪ 騥 ⫥  ..  "㡥묨 筨"  ⮬ -
  ᭮ "Virus Summary List" (P.Hoffman),   ⠪ 㬥  -
  ⨢ᠬ.         ⭮ ⠪ ᪨ ஭
⥭ "⯠ࠬ". ᯮ짮 ⠪  ..㪮 "-
ୠ  ᮫"  (⮢,  襤  ᢥ  ⠭  
  ,  ⮬ ᭮,    ⥯  ᫥  㡥
筨). 뫪    ᠭ,  ࠢ,  .
        ਢ  ᢥ       ⫨ 
ਠ, ᠭ  ᭮.  ⠫  ⠢ 楫 ஢
  㯯 (鸞,  ᥬ⢠,  த,  ). ண 䨪
⠪ ⨯ ।⠢ , ᪮   ᮤঠ ਥ,
⢮   㣨,   த⢥  ᮡ,  ᪮
ॢ ᮢ    ॢ ( ᫥ ⥮ਨ 䮢), ⠪  -
  ᨫ쭮 ᥪ. ⮬     㪠뢠 
筨 ⢮ ( .. 楯㠫쭮),  㤠 ⠭.
      ⠫  ਢ 䠬 , 㦨 , ᪮ -
⨥ 㦥 쬠 ᫮. 筮  ந室 ਬ୮ ⠪. 짮-
⥫ A,  ⨢ ॢ, ᠭ ணࠬ⮬ B, 㦨  ࠭
 ᮮ騫 砫쭨 設 C.   ᬮ५, ᤥ 㬭   맢 ᢮
稭 D, ண ⠬ ঠ  ⥬騪. D ਫ   
⥫쭮   ᯥ樠 E,   ਧ    ७
᭮묨   ᫠   ᮫ F,  ⢥न襬 稥 .
   㦨  ?
      ⠫  ਢ ⮤   ,  ᪮  室-
 ᫥  ᯥ䨪樨.   㪠 ⠪ ⥪  䠣 (஬ ᪮-
, ᫥    ࠧ "")  ᮡ  ࠡ  ᮬ,  ஬
 ⠭  .   㪠뢠 ⢮ ᨩ   -
樨  ⥪ SCAN (J.McAfee),  ᫥ ,   業-
   ᪮쪮... 襭.
       ᠭ ,  ᪮ ⠫  ਫ
 ⥪-ॢ BootChecker,  筮 ᯮ饬  ᠭ (  
ᠭ)  .
     砭: ନ "" 㯮ॡ ( 筮 )  裡  -
ﬨ, ந室訬  ਮ,  ⠪ 㤠⢮ ⢨⥫쭮 -
.
