Looks like the local name is actually more random: var name = "c:\\win"+GetRandString(4)+".exe"; Kinda dumb though, as any non-admin class user won't have access to the local folder on the root [c:\]. marioc@xxxxxxxxxxxx http://securitymario.spaces.live.com/ -----Original Message----- From: Jose Nazario [mailto:jose@xxxxxxxxxx] Sent: Monday, January 14, 2008 10:44 AM To: crazy frog crazy frog Cc: Untitled; PenTest; bugtraq@xxxxxxxxxxxxxxxxx Subject: Re: what is this? On Sun, 13 Jan 2008, crazy frog crazy frog wrote: > http://secgeeks.com/what.zip > password is 12345 > can somebody guide/help me what is this and how can i remove it? te file you sent here contains a bunch of embeded nulls (every other character is 00). stripping those out reveals ... that it's a collection of browser exploits. by the looks of it it's MPack and uses the heapspray slide stuff. the goal is to download hxxp://techicorner.com/bcuoixqf (which looks dead) as a local file c:\\mosvs8.exe and then run it. very common exploit scenario these days (but they usually have some form of js obfuscation going on). i hope this helps. ________ jose nazario, ph.d. http://monkey.org/~jose/