Rule-based Attack

[peppespe]

I'd like to carry out a rule-based attack where the password should have:
- capitalise first character
- append from one to four digits to the end
- append a special character and from one to four digits to the end.

As regular expression I could use this pattern:

Code:

[[:upper:]][[:alpha:]]*+[[:punct:]]*+[[:digit:]]*

that grab words such as:

Code:

Palermo01
Palermo.01

To perform this search by Hashcat I tried to create a file called “myrules” that contains the following rules:

Code:

#Capitalise first character
c
#Append a digit to the end
$?d
#Append a special character and a digit to the end
$?s?d
#Add two digits to the end
$?d?d
#Append a special character and two digits to the end
$?s?d?d
#Append three digits to the end
$?d?d?d
#Append a special character and three digits to the end
$?s?d?d?d
#Append four digits to the end
$?d?d?d?d
#Append a special character and four digits to the end
$?s?d?d?d?d

But according hashcat these rules are not correct:

Code:

hashcat -m 0 Palermo-01_md5.txt rockyou.txt -r myrules --debug-mode=1 --debug-file=matched.rule
<snip>
Skipping invalid or unsupported rule in file myrules on line 8: $?d?d
Skipping invalid or unsupported rule in file myrules on line 10: $?s?d?d
Skipping invalid or unsupported rule in file myrules on line 12: $?d?d?d
Skipping invalid or unsupported rule in file myrules on line 14: $?s?d?d?d
Skipping invalid or unsupported rule in file myrules on line 16: $?d?d?d?d
Skipping invalid or unsupported rule in file myrules on line 18: $?s?d?d?d?d
<snip>

...