Full Disclosure mailing list archives
RE: Microsoft hides certain types of files from your eyes + some filename parsing bug
From: Jelmer <jkuperus () planet nl>
Date: Thu, 08 Jul 2004 03:05:25 +0200
Ancient news http://www.guninski.com/clsidext.html --jelmer -----Original Message----- From: full-disclosure-admin () lists netsys com [mailto:full-disclosure-admin () lists netsys com] On Behalf Of Good One Sent: donderdag 8 juli 2004 1:37 To: full-disclosure () lists netsys com Subject: [Full-disclosure] Microsoft hides certain types of files from your eyes + some filename parsing bug Microsoft HIDES certain types of files from your eyes: This one is old unpatched "behaviour" ... If you will create in windows explorer file : test.txt with content : <script> a=new ActiveXObject("WSCript.Shell"); a.run("CMD.EXE"); alert("Hello, I'm Silly Billy !"); </script> It will be executed if you will add CLSID to it's name and user double clicks it : test.txt.{3050F4D8-98B5-11CF-BB82-00AA00BDCE0B} Note: CLSID will remain hidden (explorer will not show it up in any means) File name for user will remain : test.txt This adds numerous possibilities for viruses to fool end user into safe content. another filename parsing bug (system even cannot access it) : By some technics windows still allows to write file on harddisk with funny name like : test [good one :] .avi End user will expierence certain difficulties to remove it afterwards from system. It's name will change to "test [good one", it will have no extension, will show up 0 bytes etc, etc... Of course .url and .lnk are hidden as well, being "shortcuts" in m$ way. The contents of those files are up to you ... :-) For example : file "test.url" with this content will open your browser with alert. [DEFAULT] BASEURL=javascript:alert('hello mama !') [InternetShortcut] URL=javascript:alert('hello mama !') Modified=00027F010505010100 m$ is good for gaming, not for serious work.. - SomeMan. ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
Current thread:
- Microsoft hides certain types of files from your eyes + some filename parsing bug Good One (Jul 07)
- RE: Microsoft hides certain types of files from your eyes + some filename parsing bug Jelmer (Jul 07)
- RE: Microsoft hides certain types of files from your eyes + some filename parsing bug Eric Paynter (Jul 07)
- Re: Microsoft hides certain types of files from your eyes + some filename parsing bug Darren Reed (Jul 08)
- <Possible follow-ups>
- RE: Microsoft hides certain types of files from your eyes + some filename parsing bug Stuart Fox (DSL AK) (Jul 07)
- RE: Microsoft hides certain types of files from your eyes + some filename parsing bug Jelmer (Jul 07)