Kris Kasperski                      2:5063/61.8     12 Feb 99  00:51:00

                              筠 ⠪

       p  ⠪       ᠭ  㯭 pp,
ᥬ          ᢮,     ⠪ 
p⥬           p⮣   ⥪,            p⪨
᫥⥫쭮, p騥  p⥪.
       祭  p쭮,  ᫨  ᪠ .  ⮣ ᫥ p
  p⬠  "p" p⥬,      室
⥪!   쪮   室      p,    p砥  ᨬ  
pp  (  p    뢠  ?)  p祬  ᠬ p⭮ 
ᮮ⭮襭      㦭!  p⥫쭮    arj   p 
室   p         ~2^24  p権,  ..    ~17.000.000
p⮢        p.  p  pp    pp  
⨬樨    MS  VC    30.000  p⮢/ᥪ.  p᪨   
p  뫮      600  ᥪ㭤  (10  ),   p p p᪨
p室        p 64  㦥  墠⠥ :( H稭 ᢮ 
p 室  p, 祬  ⪨.
    ᥬ   - ⮨  뢠  p,   㤥
筮   p᭮?
     ⠪ ,   p.  p⮣p䨨  稭 
ᠭ    㬠,  㦥 200 .  :( ᫨ ᬠ
 ,   㤥  ,  pp -.  ⠪ 
ﭮ  㪮p,  ᫥  p p⥪.   ⥯p  砫
   ᪨  ⢥.    p㬠 -    ⮨
p⨪ ?  祫 , 筮, 㢠,  ⮫쪮 ᫨ 
p㫨p p⪮,  㤥  p᭮  ᯮ. H窨  砬
  , "p" 㦥   ⠪  ,  ᥬ ⠫ 
   p᭮...
     뢠    ,  㦭   p p 
稭.   p ⠫ ?
     , ᫨ p  ⮬  ,    ᪫⥫쭮
p ⠪  p⥬.  ⠫쭮 (, , ) p
⫮  ⮬.   p⪮ -   ᥬ?


2.2 p⥩訥 ⥬ p.

                                           " - ᪠   , 
                                              ᢮ ,-
                                           ᪠ 㥪.
                                           -   p㦨  ,
                                              p         
                                           ᬥp   ᫨誮
                                           ⮭."

                                           . pp. ""

           p⪨ p p  ⮢
 ⥫. ⠫    p  ᥡ ᬥ p.

     Hp p ᯮᮡ:

      if (!IsValidUser)
        {
          Message("Invalid user! Aborting...");
          Abort;
        }

 p᫨p p p⥫쭮  ᫥騩 :

        CALL IsValidUser
        OR   AX,AX
        JZ   continue
        ^^^^^^^^^^^^^
        PUSH offset str_invalid_user
        CALL Message
        CALL Abort
 continue:               ; p쭮 p ᯮ pp
        ...........

         堪p  ᥣ  .
 뤥   p    JZ continue  JMP continue 諥 砥
 pᯮᮡ      pp.   H  ᨬ    p⬠  㭪樨
 IsvaldUser  -      pp 祢 ᪠   p p
 ᮢp蠥 ᫮ p室   p쭮 p ᯮ
 pp. H 몥  p pp 㤥 룫拉 ⠪:

        IsValidUser;
        if (!true)
        {
          Message("Invalid user! Aborting...");
          Abort;
        }

     ..  ⪠  {...}     p! H ᠬ   
 ⠪  p,  ᪮   ᯮ塞 䠩 㦭    p
 p室.    ⮬  pp稪   ᪨  p㤭.
 뢠   p,   ᯮ   ᠬp騩  ,  p
 㬥p    맮   p樮   ⥬...   ,   ⠪
 p⢨  堪p  . 孮 p⨢⢨ ⭮ 
   ⥬  .        ᥬp  IDA,  ⫠稪
 Soft-Ice      pᯠ騪   cup386        㦮      ⮫쪮
 pp⨫    㤮⢨,      ⠫  㯭  p p .
 ⮪    ,  ᥣ    p᫥  ⢠     뫮,
 pp  p⠫  ⮫쪮   p쭮 p   뫮  
 㡥p   ⫠稪      pp饣  ⢨    p  砥
 pp,  堪p  "p  "     ᭮ p讬,
 ⪮  㬠    .     p室 ᥬp 
 㬥,   㬥p 맮 , p㦠  p p樮
 ⥬.    ⮫쪮 p ᮪ pᨮ,   p
 ⢠  ᢮  p,  p  祬      
 p室.
         ⮬  룮  pᯥ. p ᯥ樠, 騥 
 p, p﫨   㢫⥫ .     
 ⮩  p    ⮫쪮  p몫    ᯫ⭮  pp
 ᯥ祭,      p  ᮡ 㯨 p檨 ,  
  p  㬬 p-p⥫.
         ⢥p 㡥,    pp稪  頫
   p  ᫮.  H  ᠬ    p 騥
     襩  p  䥪⨢.  ᭮    p⮣p䨨  
 ᯥ稢    ⮫쪮  ,   ⥬᪨ ᭮ ⥯
 .
     ⨬,  p,  짮⥫, pp뢠 p稩
   pp.      p,       ᯠᠥ  쭮
 p⢠  p.    蠥    짮⥫ ᯮ짮 p
 p㣮?   H   ᠬ       p    p      
 筨, pp, p 祩.
     p  ⮣,    ᯮ짮  ⢥ p 祢 ᪠ 
 䠩  p  p p  쭮   . ⮬ 
 p      ⠪        p㪨  堪p    㤥  쭮
 ppp  pp稪  ᯥ p 筮 ᫮ p
 p.  p  ⮣,    㢠騩 ᥡ ⥫ ⠥ 
   ᠬ⥫쭮    pp  祩,     ᯮ짮 㦥
 騩.   p ꥬ p - p.
     p祬,  p樮  p  室  p    
 ⮬   pᬮp         稬.   p  p᭥  pᬮp
 p p⥬   ⠪  .
       設⢮    ᥣ  ᯮ  p ᢮   楫
 p㤭          䨪樨   .   ,   ᯮ㥬   
 pp騪, p  p⢥  ᫥, ⮬ ⥮p᪠
 p⮩    ⥬  p . p祬,   , ..
 p᫥  ᮢᥬ  p㣨  .  p  IDA        
 ᥬp      p    p . ⫠稪  ᬮ
 㭪樮p,   ᫨   p   ᯮ   室    pp.
 H,  p⢥  䨪    ⠭  . p
 ⮬   ᠬ   p  p   p⮩  p   p!
 ⢨⥫쭮,   ᫨   p,   ᯮ㥬   p,   ⥭,  
 ᯮ짮 p⮩ p ᫥!
     ⮬,  p묨  p⥬  ᭮ ᪮
 p樨   xor.        ᢮    p쭮.  p
 p  p  ⠭  室 ⥪. p騪  p騪
 p ,  p頥  ᮪p頥 . , 

                           a xor b xor a = b.

       ⮣  p  p᫨   祭 a  b  ᫥饩
 ⠡窥:

          a\b          0                       1
         
           0   0 xor 0 xor 0 == 0    0 xor 1 xor 0 == 1
                                   
           1   1 xor 0 xor 1 == 0    1 xor 1 xor 1 == 1
              

 ⨬,   xor  ⮢ p. p㬥 a  b    ⮫쪮
   祭  0,1. ,   p頥 p   p 
 ᫥⥫쭮  ⮢.  pp XOR word, const  ᠬ 
 p⠢  ᮡ    word  xor  const,    ᫥⥫쭮  p権
   p ⮢  p.
     p  p⨬  ,    a  xor  0  ==  a;  a xor 1 == !a. ..
 騬    ᪥  p    ⮫쪮    . ⮬
 p  롨p  ⠪  ,    p   㫥 
 pp p蠭.  pp, 00001111b (0xF) 㤥 宩 ᪮, ..
 ⠢ 묨 p p訥    ᨬ p⥪, 
   ( 㤥  ) ᯥ譮 ⠪ p. ᪠ 01010011
    㭨⮦   p⭮⭮  pp  室  ᨬ 
 p⥪, ⮬ ⠥ p襩.

       p      - ᪠  ᪠.  p
 砥  p騪  p⠥  ⮫쪮    p, ᫥ 祣 室 ⥪
       ⠭.    묨 ᫮,  ⠪
 ,     ⠫   p p. 室
   祭  p p,  p 䥪⨢. p  
          砭 p pp騪    
 .  ᫥  祣 祭 䠩  㤥  묨 p⢠.
     믮  ᪮ pp,    
       㤥  pp  .  p  맮  p楤p 
 pp뢠,    p  室  p뢠  . 孨᪨ 
   p,  p pp    ⮭ p,  
 쭮 ᫮,  p ⥫쭮  .
           pp  ᠬp騩 pp. p樮 ⠪
 pp  믮  ᥬp,    ᫮ p  
 ,  ᪠     몠,   ᯮ ᥬp ⠢, 
 p   p 㪠⥫.
       ᬮp p⥩訩 pp (file://CD:/SRC/Crypt00.asm).

         LEA     SI,beginCrypt           ; p뢠  ⮣ p
   Repeat:                               ; <Ŀ
         XOR     Byte ptr [SI],077h      ; p p    
         INC     SI                      ; p 㪠⥫         
         CMP     SI,offset endCrypt      ; ? ⨣              
         JNA     Repeat                  ;  {SI<=offset endCrypt}

     祭  pp   pᯮᮡ 室 p
 p  p  [offset beginCrypt,offset endCrypt]  xor 0x77. 
 ⮣    ᯮ짮  ⨫⮩  HIEW,  p⮬  IDA   
 p楤p, p  ᤥ ⮬᪨.

       Ŀ  Ŀ
                                                       
            p㭮 p1                p㭮 p2       
         

     p  p          ᫥  p.  p ᪠
 室     㧭, 祧 ⥪⮢ p "Hello,Wordl!".
   p    ᯮ짮  諥   ᮪p ⥪⮢
 p⮢  p, p᪨ pp  ..
     p p㤭  祭 pp.   뤠 ᥬp 
 襬 砥.

            1AEF:0100 BE0D01        MOV     SI,010D
            1AEF:0103 803477        XOR     BYTE PTR [SI],77
            1AEF:0106 46            INC     SI
            1AEF:0107 81FE2401      CMP     SI,0124
            1AEF:010B 76F6          JBE     0103
            1AEF:010D C3            RET     ; <   p
            1AEF:010E 7ECD          JLE     00DD
            1AEF:0110 62            DB      62
            1AEF:0111 76BA          JBE     00CD
            1AEF:0113 56            PUSH    SI
            1AEF:0114 B43F          MOV     AH,3F
            1AEF:0116 121B          ADC     BL,[BP+DI]
            1AEF:0118 1B18          SBB     BX,[BX+SI]
            1AEF:011A 5B            POP     BX
            1AEF:011B 57            PUSH    DI
            1AEF:011C 2018          AND     [BX+SI],BL
            1AEF:011E 051356        ADD     AX,5613
            1AEF:0121 7A7D          JPE     01A0
            1AEF:0123 53            PUSH    BX

   pp   ⮩  蠭   ?     
 ⨬ ?
           p室  㭨  ᥬp IDA, p
 p  -  .  騩  p  (file://CD:/SRC/crypt00.
 idc)  믮   ⮬᪨.      믮 㦭
   : idax -Scrypt00.idc crypt00.com
       ᬮp   p⠥:

          for (a=0x10D;a<0x124;a++)         //  p
          {
           c=Byte(MK_FP(0x1000,a));         //  
           c = c ^ 0x77;                    // p
           PatchByte(MK_FP(0x1000,a),c);    //  p
          }

     ᪨      p㥬   p  pp騪,    筮  
 p樨. p  pp뢠 p㦥 p 䠩, p
 ⮬  IDA  㤥  ﭨ ᥬp.     
 p    ᥬ  堪p.  ᠬ ,  㦭 室  ⭮ 
 p筮  p  ᥬp    pᨢ p ⫠稪. 
 砭  pp   뢠    (   直 ⫠稪
 ᯥ稢  ⠪ ). p㦠 祭 p  ᥬp
  ᫨   ⠪, p  .

               ⬥砫,    ᯮ짮  32  ⭮    
 0x100000000  p⮢   p  p  pp.  ᫨ 
   64 ?0x10000000000000000 p⮢ p ~30000 ᥪ㭤 
   ᥬ  ᮢ  pp  (    뤠  p뢠).
 ᫨               ⮢p           ⭠
 ⮢   ᫥⥫쭮,  p   室 ⥪... p
 p⭮,      pᯮ ⠪ p樥!   ᠬ 
          p p訥 蠭  
 ⠪    .  砫 ,  쭮 室 p
 p⮣ ⥪  ⢨⥫쭮 p    .  ⠪
 砥  p A  A'  p. ⢥  㢥 ᫮ 
 p뢠,   ⠪ ,    p . p⠢ 
 砫,     ⥭  p .  p⭮ ⮣,  
 ᮢ   A'?

  Ŀ
    ,
     
     
                  
   < L >

       p⠢  ᥡ  ᫥⥫쭮  AA. ⢥,  
 㤥 ""  ᥡ A^2 ⮢.  ᪮쪨 ⮢  ""
 p p? 稬    L,  p  R.   
     L    ⮫쪮    p   R. ᫮ ᮢ
 p⮢   p    ⮢  .    p⭮  ᮢ
 p      '  p  #A/#A^2  ==  1/#A,    # - ᫮ ⮢
 ⢠.
     ,    p  ⮫쪮   ᮢ訥 ᫠, p 室
 p    pﭨ  L p  p㣠,  L   p  .
       p⭮  ⠢  ⥫ p
 ᠬ⥫쭮,     ⮫쪮 ⬥    ᪮쪮 p浪 
   饣  ᫠  祩,  p    p諮 pp  p⨢
 砥.  ᫨ #A p   (!)    娥 蠭.  p
   ᮪,  祬  p ⥫ ⥫. 筥 p
      p . ᯮ㥬  ⥬᪠ 
 室   p뫪 pp⭮  ᨬ.  祭 p頥
 p,      ᮮ⢥ ⢨⥫쭮.  p,  ⭮
   p⥫쭮 pp p⭮ p砥 ᨬ. 
   p    p⮢,        ( 
 p쭮)  pp   p 祩   p.
     ᪠  墠뢠,  ⠪   ᪠뢠  
       64+1  ⮢  ᫥⥫쭮    ⠪  p⮬
 ⥪.  ᥬp᪨  ⠪    ⮩稢  ⠭ 
 .   H  ⠪   ᠬ    ?   ᪠?
 Hpp,        모    ᮪    p    ᯮ   ⠭p
 ⥪,  ᨭp  p ,  ᫮ pp⥫쭮  (
 p  ᫮  祩, p㬥).  p   
  pp,   ⥫쭮  .
     ⨬,  p      祫    ᯮ짮   ᥫ
 p      p      ᥬp  ⢠
 p    祭    ,  ⮫쪮  ,      㤥
     筮.  p     p?  ( p - 
 ᨬ  p樨 ⥫). 諥 p  ⠪!
     ᢮     ᫥饬,       ⭮ ᪮-
   ⮪    p  ⥪,      p猪   
 p⪨!  p ⮬  p ⮢p ⭮ pﭨ L 
 .
     p  ⠪  ᫥騩 -  s0   騩  p⥪
 ᫥⥫쭮⥩.  p  ⠪    p⮬  ⥪   p
 稬  H ⢮ 室,   祩.     
 p    ᭮  ⮣,    p #s0.  ᫮ s0 p
 p, ᫥⥫쭮      祭 p. ,
 ᭮,    騩 p 砥  ᥡ p  祭
 ⢠.  쬥  p    ᫥⥫쭮  s1    p
    p.   p  롥p  騥    f(s0)      f(s1)
 .  p⭥  ᥣ,      ⠢ p.  
 p樥  ᫮ ᨬ, 饥   ᫥⥫쭮⥩ p⥫쭮
 㬥蠥              ᫮  p  p.    
 ᫥⥫쭮   p,  롥p  ⮫쪮  ,  p  pᥭ 
 p   p  pﭨ  (᫨  ⠪  p  ).
   ⢮  p⮢  祭  p    ⢠
 p⮢,      㦭  pp    .    ⠢ ⥫
 㤮⢨  ᠬ  p  ᫮   㬥襭 ᫠ 
 p⮢.  p窠    ⮢   ᠬ  祭 p.
     堪p  ⮣  p p!    堪p - 
 祫  p      樨  p  p뢠  ⮫쪮  ᥡ.
 ⮢ 孮    ⥫쭠 p᪮.
          ᪠        .    ⭠
  p⭮     p砥    p⥪  ᨬ,    
  ᫥⥫쭮    Sn,  p⭮   p     ⮢
⭠ p猪!


                     crackMe03 (ࠣ )

     p ⠪  p ⠥,  p⮠p ⥭  筮 
 p樨,         p      p.  ⢥ pp  ⮬
 pᬮp      pp     crackme0.com    (file://CD:/SRC/Crackme.com).
 p  pp  祬   饭     . ,
      p樨  室 p.

      CalcCRC:                       ; <Ŀ
             LODSB                   ; ⠥   p    
             ADD     AH,AL           ; 㬬p㥬                        
             LOOP    CalcCRC         ; {CX}

       p楤p  CRC   p. CRC 祭 p⮩  
 娬  pᥨ.  ⢮  p  㤥         CRC,
 ⮬     p᪠  ᭮ ᥣ 쬨-⭮
 ᫠ 室 p.

             LEA     SI,Crypt        ; H  砫  p  
      Decrypt:                       ; <Ŀ
             XOR     [SI],AH         ; p                 
             INC     SI              ; 騩                    
             CMP     SI,offset Buffer; ? 㦥  pp         
             JB      Decrypt         ; {SI<offset Buffer

     p⥪  pp뢠  祭  p쭮      p!
 p祬 ᥣ  ⢮ 0x100 (256) p⮢ pp! Hp㤭
 뫮  pp    室.  ᫨  ᯮ짮 ᫮
 (0x1000)  p⮢ 뫮   p  !
       p稬,    쭮  ppp p  p᪨
 pp.   ⥫쭮,          뢠  p  !  ᫨
 pp    p,    (.. ᠬ -祭),   
 ᪮p  p浪  ᪮쪨  ⥭  祩   祩  ᥪ㭤. 
 p    ᯠ  ᯮ짮  ᫮ (0x100000000). 業
 襥  p,  室    pp  p- ⭮ .
 室   p ᪮p   祩  ᥪ㭤,   p
     祬    167  ᥪ㭤,  p⥫쭮 p . p᪨
 ,    ⠪  ?        ᮪  ᪮p  pp 祩,
 ᫮ p⮩ p⬠.
      ⮬᪮  pp  祩  p      p
 筮 pp  ⥪   p쭮. pp, 祢,
   뫠  pp p쭮  짮⥫  뢠
 CRC  p,  pp ⥪. ᬮp ᫥ :

      CmpCRC:                        ; <Ŀ
             DEC     SI              ; 騩                    
             ADD     CL,[SI]         ; 㬬p                      
             CMP     SI,offset Crypt ; ?                           
             JNB     CmpCRC          ; {SI>offset Crypt}

             CMP     CL,0C3h         ; ?祭 CRC p
             JZ      Crypt           ; --CRC OK-->
                                     ; RC FAIL

     祢  pp  p쭠  㬬  室  ⥪.   
 ᫥  -p   -㬬 室 ⥪.  襬 砥 
 p 0xC3.
     ,  ᪮쪮    p  p⮢  pp, p
 p  ⥬     p 㬬 ᮢ? 祢,  
 !     p⮬ ᫠ p⮢ pp ⢮ "" 祩
 p⥫쭮  p! , 㦥 p 32-  ᭮ p 㤥
 p⠢      室騩 祩,  롮p ⢥ p
 室  ⥪,  p  pp p⮢! p ⮬   
 筮  p  pp    p    뫮    ⮬᪨
 ⫨      p.   p稪     -⠪  ᢮!
 p⭮,    짮⥫  p,  室騩 p,
 筮   ,          뫮    pp.  ⢨⥫쭮,
 p,    1% p 㤥   p뢠, ⮣
   0x10000  (65536)  祩  ⠢ 655 p⮢,   0x10000 㦥
 42.949.672!  p⨬  ,      窨  p p⮣p䨨  
 p p業!
     㬥,     砥    ᢥ p⠢ 
 室   ⥪.   H        ᯮ짮?      ⨯  
 p㣠  p⭮ ⮣   ᨬ, pp  ᮢ 
 ᫮p,  ᪠  p  p...  H      㤥
   p!     砥 (ᮡ  p⪨ p⮢) 
   p⨨,      ᠬ    p  ᥣ pᯮ
 室 ⥪.
     p稪         p⢮!     ⠢  堪p
 p㬠.  p    諨  p㣨  ⥬.  p⮣p䠬    
 ⥭  ⮤ ⠪  p⮬ ⥪.  ᠬ , ᫨ 諥
         p⮣  ⥪,    ᤥ p
 p p   ! ᯮ ᢮⢮ p樨 xor:

             X xor Key = Y, Y xor Key = X,  X xor Y = Key!

      襬 pp  쬨 箬 筮 ⮢p  ᥣ
       p⮣  ⥪,        Key, p 
 p    ᥬ p⥪  楫. H 㤠    -
   㦮  ⥪      ⮢p? 뢠, ,   !
 筮,    ⮢p,     p ⥯ p⭮  
   稥!
     쬠  p⭮,    p p⥪ p p
 INT  0x21.    -⮢    0x21CD  (    p p
 p冷     ᫮?) p蠥  ,      ⮬
 p⪥  砩.  ᠬ   p X xor Y = key   
   X,  key, p p Y    묨. ᫨ #Y > #Key,  
 稬 X1 xor Y1 == X2 xor Y2 == key!
         ᭥    㬠,  ⮬   p
 p᪨  p,  p      ᢮.   ⨫ hiew
 p㥬 pp ᥪp p p p XOR 0x21CD.
  Ŀ
   p㭮 4   
  

      00000030:  C3 74 08 B4-09 BA BE 01-CD 21 C3 B0-B5 E4 BB A9
      00000040:  00 20_20 2E-0C E7 51 8C-72 9E 76 82-73 89 21 A2
      00000050:  4A CC^01 E7-25 7D 01 CD-21 CD 00 00-00 00 00 00
      00000060:  00 0000 00-00 00 00 00-00 00 00 00-00 00 00 00
                      

     p⨬   ᫥⥫쭮 0x2020.  让 p⭮ 
 p쭮  ⥪    室  0x21CD, p 箬 0x20!
   뢠,   ⮤ ᪠  p뢠. ⮬
 p⥫쭥     ᯮ짮                 
 ᫥⥫쭮.  ⮬ 砥  稫 ⮫쪮   , 
       ⠫    ᫨      ᪮쪮? ᫨  
     p  ᫥⥫쭮  (   ⠪  ⮨
 롨p),    p ⨭  p p! ,
 ⨬,     祩  祭    p⭮
 .      ⮣?  ⮬ 砥 室 p ᪠
 p  ᫥⥫쭮,      p⥪.   襬 pp 
     0xA0D  -  p  ⮪.  쬠 p⭮,  pp 뢮
 -  p,  p  p⭮ p蠥 p⮬ p⪨. ⠢
 ⥫  p  ᯥp ᠬ⥫쭮,  ᠬ p⨬ 
   ᫥騩    -  ᠬ  p pp 室  뢮
 ⥪⮢  ᮮ饭.  H       몥  ⠪   ᫮,  ⥬
   ppp!   祭 梨   ⥬.  ᠬ
    p ⮬⥫쭮 pp. 饬 ⠪ ⮪,  (c),
 Copyright,  OK, Cancel, Yes, No... p   p, p+
   ..
     p  ⮣,    뢠,    CRC  室  ⥪   ⥭,
 ᫥⥫쭮      p   p         ᪮쪨 -
 p.        p  p⮢  p⭮  
 p  ᪠  ⮫쪮,  p ᯮ짮 ᫥⥫쭮⥩   
   ᨬ   㦥 筮 .  p p⮩
   p  p  ⠪    p⮬  ⥪  (      筮
 pᯮ ᫥) p !
         pp  ᯮ짮  0x20. 譥   ᮫⭮
 祬  p⥫,  ﭨ  p p:

 Ŀ
                      
  p㭮 5           
 
         HH  ⥪?    ⠪  p? ᪮
 ᢮⢮  xor  0x20  p  ᪨ ⥪  p⨢ pp
 p    p    祭    .     p⬠ 
 p  ᫮    p,  p    p  ⥯ ᭨ 
 p⮩.    ⮬    p .  ⥯p ᫨ ᯮ, 
 0x20 - 100000b,  p㤭 㡥,  ⠪   ᥣ  
     !  ..  p⥪ 㤥  祬 ⫨  室.
 p訥  p⥬    pp    ᫠  ,  娥 - .
 뢠,    ᫮  ᫠  祩      p  ⠪ ,  
     p ,  p⭮ ᯮ짮 ⠪  ⮨
 .


                                    ORC

   p稪. 祭 宥 p㪮⢮ ⠬ ᮤp 筮
  p  "ᬥ" p.   p p    ⢠
  㣫㡨   ᭮  p.    p㣠⥫  p
   ⮢p p   ᨫ  p  p    몮,
  ⮬  p 筮  p p ᠬ  p.
  12-02-99  23:04:07 

                  HOW TO CRACK, by +ORC, A TUTORIAL
                  

 [ 1: H]   [PoolDemo.exe]
 """"""""""""""""""   """"""""""""""
     訩      祭  p  (..  pp᭮  ,  筮
 p      (p⠭,  ⮤)      奬
   p  pp  ᯥ祭      室  ⥪⮢)
  ᠬ⥫ 堪p᪨ ᯥp, ᯮ  p,
 p   ⥬ .
       ⮬ 砥  p ᢮ ᭮ 孨 堪p᪮ p. H
 뢠,    p  ⥬  諮  ⢥ ⥬... p
 p        뫮 p⨥:  p 㦨  
 "㬭"  p  {  trick  -  p,  p.     䨣p
 ᪮  p砭  p稪},    襥  p  p ⪠뢠
 ⮫쪮    p  p  (  p  祭)  .  
 㤨⥫쭮: H  "p᪨" pp⮢ (뢠騥 ᠬ
 ᥡ  "p⥪樮⠬"  {p  ᫮  -"protectionists"      p
 p⥪樮    "⭨" pp} 祭  p祭:  ᪫
 ᯮ짮  p  ⮤  (    ,  p 
 ᮢp襭⮢)     pp⪨    孮.    ⨯筠
 "p᪠"    p,          直  p    쬨,
 p騬   p  ,    ⢮p   p ᠬ p  
 ᢮   㤮⢨.     "p᪠"    p㤭  
 p檨, -pp ⢮,  p  㦤 .
      ⮬    稭  "⮫"    (稭    p  3),
 ᯮ    pp    "p"  p   "p"
 .      ᬮ p  訥   楫 
 .          뢠        .  ⠪ 
          ᬮ        pp    p
 ᢮      p㯠  p.
        祡   稭 pp.   p p뢠
 "          -"  㦥  ⪨  p
 p⮬.        ,       ,   
 p      ᨫ.    p㣮 p, ᫨  㦥 p㡠 
 p饣   ᥬp  㦥 p뢠  p , ⮣
   p  p⭮    p    . (᫨  
 ᢥ   ᭮,             ⥫쭮  ꥪ  p
 pp,  ⠢).
       ᯥ譮   p ᫥騥 ᭮뭥 :

     p襥    몠  ᥬp  (祬    , ⥬  
      p )

    - 樨

    H    pp { pp,  :) }

 p,    㤥 ᯮ짮  祭    
 ⥣p:

    㢥祭 p (p⥩訥  )

    㢥祭 稪   ᪮ (쪮 p  )

    p, p祭 ⮩ ᯮ (p  )

    p  p묨  p묨  㭪ﬨ (   p
      p ᫮)

    饭 ᪮ 㯮 (p ᥩ  p訬)

    p易  CD-ROM (祭 p  )

     (.. p樨  㯮 ,   
     ᠬp饣  (XOR & SHL) (쭮 p  )

       襯p᫥. ( 殮  )

[  STUFF]
"""""""""""""""""""
     稢訥    p   pp⠭   "DEMO"   ᨤp   
 ᮪p魨    pp!  {   ⠪   . Hpp "ᨩ᪨
   97"  - 楫 ᨤ   襢} H  ᫥  ᪠ 
     ⠢訥  ,    ⠫  p묨  p᪨
 ᯫ⭮ {    H. 뭮,   ...} 樮 CR-ROM
     堯  p   p (p  ),  
 - ⮤ 㢥p ( p묨 ⮤). ⢨⥫쭮
 㤥  pp ⥩  pp! ! H堫   
 楫      ⪠  LOTUS { p ⠪} pﬨ ( M$
   WordPrefect)   "p  祭 30 "  "20 ᪮" p権.
  ⢨⥫쭮 ᫠ 뢠 , ᯮ    \
 ᭨室⥫쭮-᪫     web   p,  
   $$$  .
         p    믥p!  祭 p
     pp,  ..    "p饭"   ,  
     奬  ⢨⥫쭮 H ᮪ p, p p
 䠩,  p  ⭮⥫쭮  . p, ᬮp,   p 
     ᪨  奬 p  35.000-⭮
 ᯮ塞  䠩,  祬    p ᡮp ⢠ 
 DDL,   p    p       2.000.000    .    
 "ᮢp"  pp⮢,  ⥬᪨  p   奬 
 ⮩  "p⮩      p  p" . ᪨   
 ᯮᮡ  ppp    ᥬp:     p 
 "⮫"  p  猪 릥 横,   Visual C++ { MS VC  
     宩  .    ,         MFC} (H
 ᯮ...        p   p p)
      p㣮  p稭  롮p  "p稬 p" p,  p
        H         ⭠  奬,  p    
 p㦨      p  (  )  p p,  뫠
 ᯮ짮      ""     ""     p  ᯥᨢ
 p᪨ p.
        ⮩  p稭    p  㤥  p뢠 饭
 p誨,  ᫨   p    ᭮  p᪨
 奬      p  㯠  㤠 pp (BBS  
 ATM)  {ATM  p-, .. ⮬᪨咮p匠設    .  
 ᪢   㦥 -  ,  ⠥  }
       ⥯p    㯨⥫ pp "time-protect"
 .  稬  (-> p 4)   p,  "" 
 p  (..  "  p"  ᯮ   " ") p
  室 p樯 (  p ᫮ p権  ⮬ )

         稪  ""      : H    

        뢠 ⠩p pp뢠 :   

      --⠬ p  p      : NOOP 

      pp   䠩  ᪥    : H HH  JMP!

      ᮢp pp  "稪 ", p 
   ⢮  p,    p p pp⠭ :  
   p⥫쭮 .  楫  p, p騥 
 p    ᫮    pp  "p"  (     
 䥪⨢  "⮫" p).

 : [ARCADE POOL]
 """""""""""""""""""""
     p樮  p  PC by East Point Software Ltd, (c) Team 17
 Software  Ltd  1994.      뫠  㡫  p  
 ᨤ  1995  {   ᥩ  ᪠?}
      pp p  "time" 㢥p.   p ⮫쪮 2
 ,  ᫥  祣 "nag"-pp⥫    祬  ᨥ ⢮p
  㯨 { p㣠⥫ ᪨  p饭 }
      H,   ?    ᤥ ( 易⥫쭮 ):
   [Soft-Ice]    p㧨       config.sys ( ᨥ ᤥ 
 p᪠  "p㬥  襩 p"  筮 "p㬥, p
   p by KPNC") p 2.6 - 뫠  MARQUIS DE SOIREE
        Web { www.dore.da.ru - ⠬  soft-ice
 2.8 - ᫥  p  DOS}

       p  p p p㧪 襩 誨

       諠, ⭠! ldr pooldemo.exe

       p p  pᯥ⠥ p墠祭

       {...᪨,     ⢥...}

       pᬮp p 

       ⥯p ,  PoolDemo   

       ᥪ-p 祣  

          p


                               !IDA DEBUGER!


           ⫠稪  IDA? H?  p. 祭 p쭠 㪠. 
 㤮.  ⮬  魠!
          p諠 .     ⮢ p⨢ p 
 p      pp  !  H p ⮫쪮 ᮡ
     ᬮ. 筮, p 몠  pᨨ 3.6  墠 
   p誨,  ⮬    㦭      pᨨ.    
   DLL  . p 㤥 ᯥ祭. pp p 
 , p稥   p p  (맮  㭪権
  ᮫).
         祬   㤮⢮ ?   ⮬,   ᤥ  ,
   _⥪_  ⫠稪!     ⠪?  p ⫠ 
 pp  楫.    p,      ᥣ    p  ⮫쪮
 p  p.   IDA   pp  㦭 , 
 砫  祭  pp    믮 p.  室
 p ᥣ 㯮p頥 , ..  ᪮p  p.   㤮!
     p      !         
 祭  pp\䫠    室   ⠪  ⠪ p  㤠
 ⭥  ᫮  p室.  p p   ᮪ 
   窨.
         p     pp -  p - 諨
   pp뢠. p祬  ⮬᪨ p pp
 ,    룫拉 樢쭮!  p-  p!
      筮  IDA    ICE  ᯮ    離  p  筥 p
 祩.    ᭮   p⠥       - p㦠
 ICE  ( pאַ  IDA)  ᬮp. ⮬   IDA  p ᪨.
   ,  㤮  뫮    㤠    ,  pאַ  IDA   
 .
          p. ⠫  p.  pᮢ
     ᥬ p -   ᢮ 쭮 祩 -  p! 
  -  .

