[FR] CyberChef Analyzer

[weslambert]

I've created an analyzer to automatically convert data via CyberChef server.

This analyzer includes data transformations for Base64, Hex, and CharCode -- it can be expanded in the future, but I figured this would be a good first start.

PR here: #599

[dadokkio]

Hi, I'm trying to run your analyzer with cyberchef-server docker but it's not working.
The response from the server is something like:
{"value":[99,105,97,111],"type":"byteArray"}
and your code is returning error:

Traceback (most recent call last):
  File "test_cyb.py", line 15, in <module>
    output_data = str(output_data + str(chr(int(i))))
ValueError: invalid literal for int() with base 10: '{"value":[99'

I'm not sure if this depends from a different release of the cyberchef-server but I had to change your code to something like:

r = requests.post(url.strip('/') + '/bake', headers=headers, data=json.dumps(data))
output_data = "".join([chr(x) for x in r.json().get('value', [])])
self.report({ 'input_data': observable, 'output_data': output_data })

[weslambert]

Thanks for reporting @dadokkio -- I'll look into this.

[weslambert]

So, it looks like, for some reason or another, as you pointed out @dadokkio , the code I had previously was no longer working. I've updated per the suggestion and it seems to be working okay now:

427a9a7

[weslambert]

Awesome, thanks @jeromeleonard !