Replace Characters in Foreign language.

[Snoopy]

not quite sure wheter rules accept hex as charset but it seems implemented as you can see here
https://github.com/hashcat/hashcat/issues/1580
https://github.com/hashcat/hashcat/commi...b65f8bf4eb

so it should be possible, all you have to know is the hex-equivalent for your chars

sXY Replace all instances of X with Y

german ä is 0xc3a4 so

Code:

sa\xc3a4

should work but resulting in

Code:

Cannot convert rule for use on OpenCL device in file ruletest.txt on line 1: sa\xc3a4

some tries later

Code:

saä

seems to work, but i had to save the rules files explicit in ANSI on windows, utf-8 was not working

Code:

hashcat -a 0 --stdout -r rule.txt pw.txt > test.txt

resulting in admin > ädmin for example

you could also try playing around with 

--encoding-from          | Code | Force internal wordlist encoding from X              | --encoding-from=iso-8859-15
--encoding-to              | Code | Force internal wordlist encoding to X                | --encoding-to=utf-32le

encoding is a hell for itself