Prepend words to dict. Why so many time?

[hvprvtr]

Hello. I try to bruteforce hashes by dict, but with prepended word abc.
Dict without this word (-a0) processed for 2 mins.
But if i run next modes, time rise to 7 days. Why so long?

(abc.txt contains word "abc" only)

Code:

hashcat.exe -a7 -m22000 lists\wifi.hc22000 abc dict.txt
hashcat.exe -a1 -m22000 lists\wifi.hc22000 abc.txt dict.txt

[penguinkeeper]

Yeah, this is just because of how Hashcat works internally. With only a single word on the left, Hashcat can't properly parallelise across the entire GPU, use the ^c^b^a rule instead, like:

hashcat.exe -a 0 -m22000 lists\wifi.hc22000 -j "^c^b^a" dict.txt

More info: https://hashcat.net/wiki/doku.php?id=fre...full_speed

[hvprvtr]

Thanks!