is this a mirc bug or a mail client bug? on systems with thunderbird installed, this opens a new mail window to %xx... on systems with outlook/outlook express, this opens calc.exe (both using mirc 6.3) similar behavior as clicking start -> run and pasting the URI regardless, unless you can pass arbitrary arguements or pass data on to a server, i don't think you're going to find many already existing executables on the user's system to do malicious tasks with this "mirc bug". various tests can't even get notepad to open a simple txt file. you can't even run shutdown.exe without specifying some arguments. research kills frivolous 0day announcements. On 3 Oct 2007 16:06:29 -0000, jinc4fareijj@xxxxxxxxxxx <jinc4fareijj@xxxxxxxxxxx> wrote: > Yipiya Ypipiya yah yeah. Here is a 0day! hurra mIRC pwns your Windozes! (ref. pdp) > > send this to a user and make him double click on it (masquerade it with pink fore/background color and say 'free pr0n click here ->' it works all the time! damned perverts): > mailto:%xx../../../../../../../../../../../windows/system32/calc.exe".bat > > Now the question is, should we say *0day* for a bug in a core element that is WELL KNOWN by everyone (reported months ago), and will be patched, or should we try to get credits for finding a *vector* as pdp did with the supposed *acrobat reader pdf bug* ? > > Fame kills bugs. > -- In God we trust, Everyone else must have an x.509 certificate.