<![CDATA[Hashcat Rule Ranker – GPU-accelerated ranking of Hashcat rules]]>A tool that evaluates and ranks Hashcat rules against a wordlist + a list of known cracked passwords.

• GPU (OpenCL – NVIDIA/AMD/Intel)

• Multi-Armed Bandit (Thompson Sampling) with early elimination of weak rules → much faster on large rulesets or legacy exhaustive run

• Optional CELF post-processing (max-coverage) – selects the smallest, most efficient set of rules instead of a plain top-K

• Three strategy's: bitmap, recompute-gpu, sparse

• Handler for quick analysis and merging results from multiple runs
Output: ranked CSV + ready-to-use optimized .rule file.

GitHub: https://github.com/A113L/ranker

Credits:
@Vavaldi for coverage optimization inspiration

]]>https://forum.hashpwn.net/topic/204/hashcat-rule-ranker-gpu-accelerated-ranking-of-hashcat-rulesRSS for NodeThu, 01 Oct 2026 22:55:05 GMTWed, 30 Sep 2026 23:01:05 GMT60<![CDATA[Reply to Hashcat Rule Ranker – GPU-accelerated ranking of Hashcat rules on Thu, 01 Oct 2026 08:44:19 GMT]]>On the results of ranker x1.greedy vs a1131.greedy rulesets

# head x1.greedy_top50000.rule
: 
T0 T2 T4 T6 T8 TA TC $1 $2
l
x12
c'1$s18
“A$p t
T0 T6 TA $3
T0 T5 TA 1 $2 $3
R2
-9x35 ^f

# head a1131.greedy.25000.rule
: 
l
T0
$1
K
]
$1 $2 $3
$4
$2
+2

# head a1131.greedy_top50000.r1.rule
: 
] $a
[$1
[$9
[$8
[$7
[$4
[$3
[ [ $6
[ [ $5

As can be seen above, the rules obtained using the ranker (with CELF) are not only diverse, but also deliver very similar results at the identical cut-offs of 10k / 25k / 50k.

Rule Hit rate Size AVG Time Eff.
a1131.greedy.10000.rule 22.75% 10 000 25 352 2.275
x1.greedy_top10000.rule 22.56% 10 001 501.44 2.2558
a1131.greedy.25000.rule 28.60% 25 000 31 879 1.144
x1.greedy_top25000.rule 28.46% 25 001 25 832.06 1.1384
a1131.greedy_top50000.r1.rule 33.60% 50 001 16 987.14 0.672
x1.greedy_top50000.rule 33.05% 50 001 21 051.92 0.661

Ranker + CELF generates rulesets with very similar effectiveness (differences of only 0.14–0.55 pp), while being more diverse and less redundant. At the 10k/25k/50k cut-offs the results are practically equivalent.

Full Benchmark

]]>https://forum.hashpwn.net/post/17230https://forum.hashpwn.net/post/17230Thu, 01 Oct 2026 08:44:19 GMT