Cracking Passwords on GCP

Handful of scripts for setting up GCP GPU hashcat instances for cracking passwords.

Setup

To create your instance:

/bin/create_instance.sh <INSTANCE_NAME>

gcloud compute ssh <INSTANCE_NAME>

Copy over the install script:

gcloud compute scp /bin/setup.sh <INSTANCE_NAME>:.

Switch to root and run setup.

sudo su - 
./setup.sh

NOTE: You will be prompted to press ENTER during one of the install steps. This setup will also run benchmark tests that can be stopped with CTRL+C.

Basic Run

Copy over the basic run script:

gcloud compute scp /bin/basic_run.sh <INSTANCE_NAME>:.

./basic_run.sh <HASH_TYPE>

Rule Based Run

Copy over the basic run script:

gcloud compute scp /bin/rule_run.sh <INSTANCE_NAME>:.

./rule_run.sh <HASH_TYPE>

Create Test Hashes

./bin/generate_test_hashes.sh

gcloud compute scp test_hashes.txt <INSTANCE_NAME>:.

Resources

• hashcat
• Post on cracking django passwords in GCP
• Post on GPU hashcat setup in Ubuntu
• Intel OpenCL runtime releases
• OpenCL drivers page