wrote this for user "un0rth0d0x" so he can change the password of hundreds of mules within seconds ...

[Perl] rotmg mass mule password changer - Pastebin.com

you will need to have perl installed (if you are on windows go there ActivePerl is Perl for Windows, Mac, Linux, AIX, HP-UX & Solaris | ActiveState) and it would be a good idea to put the bin directory into your PATH environment variable as well ...

put your current mule info into a text file called "mules.txt" within the same directory as the script with the following format (or change the script to accept a different format of course)

Code:
foo3@foo3.org password123
foo4@foo4.org password234
start like so

Code:
perl massMulepasswordChanger.pl <new password>
if there are any erroneous mules fix them by hand ...

WARNING:

don't re-run the script ... or you risk to end up with all of your mules locked because of too many invalid password attempts (the script will of course use the old password from the mules.txt file again)