- [Duke's Virus Labs #4] - [Page 18] -

                     ୠ  D V L  # 4  ।⠢:

                    Duke's Pascal Virus Generator v0.20
                              (c) by Duke/SMF


   DPVG -  , 騩 ᮧ 室 ⥪ १
Overwriting, Worm  Companion ᮢ  몥 Pascal.  ।
 ᮢ襭⢮, ⢥   ࠢ ᨥ
 DPVG v0.10 (.  19  ୠ DVL #3).
    ⮩ ᨨ ࠢ 訡  ࠦ  PATH,  
뢠    HLLO-ᮢ    ᮧ
HLLC-ᮢ.


 ⠢  DPVG :
-------------------------------------
   * DPVG.EXE     - ᯮ 䠩 ணࠬ
   * DPVG.CFG     - ਬ 䨣樮 䠩
   * DPVG.TXT     - ᠭ ࠡ  ஬
   * EXAMPLE?.PAS - 室  HLLO/HLLW/HLLC.DPVG.Demo,
                    ᠭ  DPVG
   * EXAMPLE?.CFG - 䨣樮 䠩  
                    HLLO/HLLW/HLLC.DPVG.Demo
   * EXAMPLE?.EXE - ⮢  HLLO/HLLW/HLLC.DPVG.Demo

 :
-------------------------
- ᮧ HLLO-ᮢ ࠦ COM, EXE, COM & EXE 䠩
   HLLW-ᮢ, ࠦ ARJ, LZH, RAR  ZIP 娢
   HLLC-ᮢ, ࠦ EXE 䠩
- ࠧ ਠ 楤 ࠦ
- ࠦ ᠬ    ࠭ ⢠ 䠩
-  ஢ન   ࠦ 䠩 COMMAND.COM  HLLO-ᮢ
-  祭 ᮡ⢥ ᯥ䥪⮢
-  ࠡ⪨ ᠬ ਡ Read-Only
-  뢮 ᠬ ⥪⮢ ᮮ饭
-  ⨬樨 ࠧ 

 :
----------------
 ⮣, ⮡ ᮧ   DPVG ࠡᯮᮡ HLLO/HLLW/HLLC-,
室 믮 ᫥騥 ⢨:

1)  䨣樮 䠩 DPVG.CFG ( ࠢ   
   祭 㭪⮢    ). ।,  ⥪
    㤥 뢠  䠩 VIRUS.PAS.
2)    ࠬ஬:
           DPVG.EXE DPVG.CFG
3) ⪮஢ 祭 PAS-䠩    Turbo Pascal
   (tpc.exe)  Borland Pascal (bpc.exe):
   TPC.EXE VIRUS.PAS        BPC.EXE VIRUS.PAS
4) ᫨  㪠  䨣樮 䠩  H=N,  室:
   a) ᬮ ࠧ 祭 䠩 VIRUS.EXE     䠩
      VIRUS.PAS  ப "VirusSize=",  饣 ⠬ ᫠ 3500;
   b) ᭮ ⪮஢ 䠩 VIRUS.PAS (    㭪 3)

᫥ ⮣ 100% ࠡ騩  ⮢!


ࠢ  䨣樮 䠩
------------------------------------------
 DPVG v0.20    窨  "饭"  짮⥫
室 १ 䨣樮 䠩.

ப 䨣樮 䠩, 稭騥  ᨬ ";", ஬
.

   ( ᥣ!) :
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* 0 *
砥 ⨯ ᮧ .  ਠ:
0=O  - HLLO (overwriting virus)
0=W  - HLLW (archive worm)
0=C  - HLLC (companion virus)

* A *
 ப 稭, ᮤঠ   (ਬ, A=DemoVirus).

* B *
 ப 稭, ᮤঠ    (ਬ, B=Duke/SMF).

* C *
 䠩,   㤥 뢠 室 ⥪   ᪠
(ਬ, C=virus.pas).

* D *
᫮ 稭,  ᫮ 䠩, ࠦ   .
᫨ 室 ࠧ   䠩 (⥪饣 ⠫  ),
 室 ⠢ D=0

* E *
 ४⥫ ⢥砥  ਡ ࠦ 䠩. 
᫥騥 ਠ:
E=Y  - ࠦ 䠩  ਡ⮬ Read-Only (.. ࠦ 䠩 c
       ਡ⠬ $21)
E=N  -  ࠦ Read-Only 䠩 (.. ࠦ 䠩  ਡ⠬ $20)

* F *
४⥫ ᯮᮡ ࠦ 䠩, ᪠騩  ਠ:
F=Y  - ᯮ짮 COMMAND.COM  ࠦ 䠩.  ⮬ ࠧ
       ᮧ  砥  訬.
F=N  -  ᯮ짮 COMMAND.COM,  ᯮ짮 ᮡ⢥ 楤
        ࠦ 䠩.  ⮬ ࠧ ᮧ  㤥
       .

* G *
 襭 ࠡ  뢮  ࠭ 㪠  ⮬ ࠬ
⥪⮢ ப. ⢮ ப "G="   ॢ 25 . ⮡
 ᮮ饭  뢮, 室 ⠢ ப "G=" 
祭.

* H *
祭 䠩  ᯥ䥪⠬.
    ⮫쪮 楤, ଫ  :
    procedure _楤;{ ࠬ஢}
    begin
    {⥫ 楤}
    end;
᫨  ࠡ 楤 ॡ 㣨 㫨,  dos.tpu,   
  䠩  楤ன.
ଠ : H=_䠩#_楤
᫨ ⠢ ப "H="  祭,  祣  砥.

* I *
४⥫, ⢥騩  ⨬    ᪠騩 
ਠ:
I=Y  -  室 ⥪   ப, 㬥 ࠧ
       ⪮஢ 
I=N  - ⨬  ࠧ 䠩  ந

* O *
 뢠    .  ⮬  ⮬ 
㤥   ࠧ   ࠧ+㪠 祭.
᫨ O=0 ,    뢠.

* P *
  ࠦ 䠩  ⠫ ६ PATH.  ਠ :
P=Y  - ࠦ  PATH
P=N  -  ࠦ  PATH

 ᥪ   ᮧ HLLO-ᮢ :
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* J *
 䠩,   ࠦ ᮬ.  ਠ:
J=C  - ࠦ *.com 䠩
J=E  - ࠦ *.exe 䠩
J=B  - ࠦ *.com  *.exe 䠩

* K *
⪠ (䨪) ࠦ 䠩.     ᨬ
(ਬ, K=M$).

* L *
४⥫ ⢥騩  ஢ 䠩 । ࠦ. 뢠
஬ ⮫쪮  ⮬ 砥,  J=C  J=B .   ਠ:
L=Y  - ஢   䠩   ࠦ COMMAND.COM (
        ࠦ COMMAND.COM ᮬ ⠭ 㦠 設)
L=N  - ࠦ   䠩  ஢ન

 ᥪ   ᮧ HLLW-ᮢ :
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* M *
 ࠦ 娢.  ਠ:
M=A - ARJ
M=L - LZH
M=R - RAR
M=Z - ZIP
  窥  㪠 ᪮쪮 㪢, ਬ M=ArLz

* N *
   뢠   娢.
᫨ ⠢  ⮩,   㤥 뢠  砩
  ७ COM  EXE

 ᥪ   ᮧ HLLC-ᮢ :
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
( ᮦ, 樨 ⬥祭  "-"   ᨨ  ॠ)

* Q *
 ࠦ 䠩
Q=E - ࠦ *.EXE
- Q=C - ࠦ *.COM
- Q=B - both (.. ࠦ  *.EXE,  *.COM)

* R *
ᮡ ࠦ
R=1    - ࠦ EXE-䠩 ⥬ ᮧ  COM-䠩
         (⮫쪮  Q=E)
- R=2??? - २뢠   䠩  ७ ???
- R=3??? - २뢠   䠩  ७ ???  ᪠ ???

* S *
஢ ᪠ 
S=Y  - , ஢
S=N  - ,  ஢


 ᯮ짮 DPVG
---------------------
  DPVG ⠢  짮⥫ﬨ ࠢ ஢ 
᢮ ᬮ७ ᮤন ᣥ஢ ஬ ᮢ, ⠢
 ⮬  室 ⥪  ப "Generator:='[DPVG v0.20]';".

