elclay7/HashMonitor

Monitoring files using hashes

Features

• Monitoring files using hashes.
• Notifications via mail and telegram when finding a new or modified file.

What I need

• Linux server
• Python3
  • hashlib
  • os
  • smtplib
  • requests

How does it work

The repo contains 2 scripts:

• hashcreation.sh - Finds the hashes of all files found in the selected directories and saves those hashes to the file hash.txt
• hashmonitor.sh - Looks up the hashes of all files in the selected directories and compares them with those stored in hash.txt

Will notify you by mail and telegram when:

• Files changed: The hash found does not match the one stored in hash.txt
• New files: Found hash does not exist in hash.txt

Run for tests

python3 hashcreation.sh

python3 hashmonitor.sh

both scripts have verbose.

Running in production

1. Creation of the hashes: the creation of the hash must be executed manually hashcreation.sh as long as we are sure that our site is clean and run it every time we make a modification to a file that is found within the monitored directories.
2. Search for new or changed files: Execute the hashmonitor.sh script via crontab

0 */1 * * * python3 /hashmonitor.sh

If it finds any modified or new file, it will be notified via email and telegram.

Important:

• The directories to monitor/exclude must be set in the code of the scripts.
• The file where the hashes will be stored must be created manually and its path must be set in the script.