PoW Buster

A fast, adversarially implemented mCaptcha/Anubis/Cerberus/go-away/Cap.js PoW solver.

How to use

Anubis/Go-away/Cerberus: You should find the challenge JSON in:

`head > script#anubis_challenge`
`script#challenge-script[x-challenge]`
a network request that ends with `/make-challenge`

Copy the challenge JSON and paste it into the textarea below. Characters before the first `{` and after the last `}` are ignored.
Response will be a single redirect URL provided in JavaScript format mirroring the official solver's behavior after a solution is found.

Expected Formats

Anubis (both forms are accepted):
- "fast" and "slow": {"rules":{"algorithm":"fast","difficulty":4,"report_as":4},"challenge":"xxxxxx"}
- "preact": {"rules":{"algorithm":"preact","difficulty":1,"report_as":1},"challenge":{"id":"xxxxxx","randomData":"yyyyyy"}}
Cerberus: {"challenge":"8676e9cefd7605e746987bf31262846259c2e550d4e308f66b74cb06a722a6c8","difficulty":12,"nonce":90144522,"ts":1000000000,"signature":"e3cae2bc91a2f303d272ba748a2fe82835ab057e9ff00bacd67bec24e9ae387b810407af545a6589b7f421defead23b9bc6c5ccfd3125fe758819e4312b3a300"}
Go-away (Server-Side Only for now): {"challenge":"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", "target": "000fff", "difficulty": 16}
CapJS (Server-Side Only for now):
- Typical salt: {"challenge":{"c":50,"s":32,"d":4},"token":"4b1b46efba002091eeff6cfb0a8c2210d4670d9ce013d6e773","expires":0}
- Stretched salt (floating point numbers are expected behavior, server will accept them): {"challenge":{"c":50,"s":57,"d":4},"token":"4b1b46efba002091eeff6cfb0a8c2210d4670d9ce013d6e773","expires":0}

Request Form

WASM Results

WASM Module Loaded? JavaScript Not Executed