Penglab – Abuse Of Google Colab For Cracking Hashes

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Penglab

Abuse of Google Colab for fun and profit.

What is it ?

Penglab is a ready-to-install setup on Google Colab for cracking hashes with an incredible power, really useful for CTFs. (See benchmarks below.)

It installs by default :

  • Hashcat
  • John
  • Hydra
  • SSH (with ngrok)

And now, it can also :

  • Launch an integrated shell
  • Download the wordlists Rockyou and HashesOrg2019 quickly !

You only need a Google Account to use Google Colab, and to use ngrok for SSH (optional).

How to use it ?

  1. Go on : https://colab.research.google.com/github/mxrch/penglab/blob/master/penglab.ipynb
  2. Select “Runtime“, “Change runtime type“, and set “Hardware accelerator” to GPU.
  3. Change the config by setting “True” at tools you want to install.
  4. Select “Runtime” and “Run all” !

What is Google Colab ?

Google Colab is a free cloud service, based on Jupyter Notebooks for machine-learning education and research. It provides a runtime fully configured for deep learning and free-of-charge access to a robust GPU.

Benchmarks

Hashcat Benchmark :

====================
* Device #1: Tesla P100-PCIE-16GB, 16017/16280 MB, 56MCU

OpenCL API (OpenCL 1.2 CUDA 10.1.152) - Platform #1 [NVIDIA Corporation]
========================================================================
* Device #2: Tesla P100-PCIE-16GB, skipped

Benchmark relevant options:
===========================
* --optimized-kernel-enable

Minimum password length supported by kernel: 0
Maximum password length supported by kernel: 55

Hashmode: 0 - MD5

Speed.#1.........: 27008.0 MH/s (69.17ms) @ Accel:64 Loops:512 Thr:1024 Vec:8

Minimum password length supported by kernel: 0
Maximum password length supported by kernel: 55

Hashmode: 100 - SHA1

Speed.#1.........: 9590.3 MH/s (48.61ms) @ Accel:8 Loops:1024 Thr:1024 Vec:1

Minimum password length supported by kernel: 0
Maximum password length supported by kernel: 55

Speedtest :

Testing from Google Cloud (35.203.136.151)...  Retrieving speedtest.net server list...  Selecting best server based on ping...  Hosted by KamaTera INC (Santa Clara, CA) [11.95 km]: 28.346 ms  Testing download speed................................................................................  Download: 2196.68 Mbit/s  Testing upload speed......................................................................................................  Upload: 3.87 Mbit/s  
Download Penglab

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