Unfortunately, on my US Windows 2K SP3 build (and I assume all others), those %u directives get translated into question marks. (0x003F in hex) :< This exploit must be much easier to get reliable on other language versions. A shame, really. Did you use my encoder or did you write your shellcode manually, just out of curiosity? Dave Aitel Advanced Engineering Directorate Immunity, Inc. http://www.immunitysec.com/CANVAS/ "Hacking like it's done in the movies." On Wed, 26 Mar 2003 22:55:12 +0900 ¿ÀÁ¤¿í <mat@panicsecurity.org> wrote: > my @return_addresses=( > "%u32ac%u77e2", > "%uc1b5%u76ae", > "%u005d%u77a5",