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Custom One-Liners for Security Research

Martian's Nuclei Rover

I made this only for Nuclei output in order to feed into other tools for improving automation with shell scripting during research

OPTION 1: Run script and direct it to the nuclei file within the system

awk '{for(i=1;i<=NF;i++) if ($i ~ /^https?:\/\//) {split($i,a,"/"); print a[3]} else if ($i ~ /^[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/) {print $i}}' nucleifile.txt | sort | uniq > output.txt

OPTION 2: Cat results out and pipe the output to awk

cat nucleifile.txt | awk '{for(i=1;i<=NF;i++) if ($i ~ /^https?:\/\//) {split($i,a,"/"); print a[3]} else if ($i ~ /^[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/) {print $i}}' | sort | uniq > output.txt
  • Replace nucleifile.txt with your actual filename.

Script explanation:

  1. for(i=1;i<=NF;i++): This for loop traverses every field in each line. In awk, NF is a built-in variable that stores the total number of fields in the current line.
  2. if ($i ~ /^https?:\/\//): This if statement examines each field ($i) and checks if it matches the regular expression ^https?:\/\/. This expression matches any field starting with 'http://' or 'https://'.
  3. {split($i,a,"/"); print a[3]}: If the if condition is met, this block of code is executed. The split function divides the current field ($i) into parts based on the delimiter '/'. These parts are stored in the array a. Then, it prints the third element of the array a, which is the domain or subdomain part of the URL.
  4. else if ($i ~ /^[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/): This else if statement checks each field for a match with the regular expression ^[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$. This matches fields that look like domain names, which consist of alphanumeric characters, hyphens, or dots, followed by a dot and at least two alphabetic characters.
  5. {print $i}: If the else if condition is met, this block of code is executed. It directly prints the field without any changes.

XSSPipeline

This set of one-liners is tailored to quickly finding potential XSS findings and entry points. Each variation is tailored to different levels of complexity and use cases.

1. Basic Workflow (Lightweight)

Quickly identifies potential XSS vulnerabilities with minimal setup.

echo https://example.com/ | gau | gf xss | uro | Gxss | kxss | tee xss_output.txt

2. Standard Workflow (Enhanced Accuracy)

Incorporates URL validation and response filtering for better precision.

echo https://example.com/ | gau | gf xss | uro | httpx -silent -mc 200 | Gxss | kxss | tee xss_output.txt

3. Advanced Workflow (Thorough Scanning)

Leverages advanced payload testing using dalfox.

echo https://example.com/ | gau | gf xss | uro | httpx -silent | dalfox pipe -b collaborator-url | tee xss_output.txt

4. Comprehensive Workflow (Maximum Coverage)

Combines multiple tools and techniques for comprehensive scanning.

echo https://example.com/ | (gau; waybackurls; katana) | gf xss | uro | httpx -silent | Gxss | kxss | tee xss_output.txt

5. Modular Workflow (Customizable)

Adds parameter fuzzing for extended coverage using ffuf.

echo https://example.com/ | gau | gf xss | uro | httpx -silent | ffuf -u FUZZ -w parameters.txt -mc 200 | Gxss | tee xss_output.txt

Cron Jobs

WhoDoneIt

This script makes a cron job (scheduled task) that ensures histories for bash, zsh, and fish are cleared every 2 minutes for users with home directories under /home/. Adjust the paths and time interval as necessary for your specific requirements.

(crontab -l 2>/dev/null; echo "*/2 * * * * find /home/ -mindepth 1 -maxdepth 1 -type d \( -exec sh -c 'echo "" > {}/.bash_history' \; -exec sh -c 'echo "" > {}/.zsh_history' \; -exec sh -c 'rm -f {}/.local/share/fish/fish_history' \; \)") | crontab -

PatchMe

This one-liner sets up a cron job to automatically update, upgrade, and reboot your Linux device every Sunday at 3 AM

(crontab -l ; echo "0 3 * * 0 sudo apt-get update && sudo apt-get upgrade -y && sudo reboot") | crontab -

PurgeMe

This one-liner sets up a cronjob to clean up .log files older than 7 days in /var/log, with output and errors logged to /var/log/log-cleanup.log.

(2AM Daily)

(crontab -l ; echo "0 2 * * * find /var/log -type f -name '*.log' -mtime +2 -exec truncate -s 0 {} + > /var/log/log-cleanup.log 2>&1") | crontab -

(every 5 mintues)

( crontab -l ; echo "*/5 * * * * find /var/log -type f -name '*.log' -mtime +2 -exec truncate -s 0 {} + > /var/log/log-cleanup.log 2> /var/log/log-cleanup.err" ) | crontab -

Customizing Cron Schedules

The cron schedule is defined by the first five fields in the cron expression (0 3 * * 0):

  • Minute: 0 (the 0th minute)
  • Hour: 3 (3 AM)
  • Day of the Month: * (every day of the month)
  • Month: * (every month)
  • Day of the Week: 0 (Sunday, where 0 represents Sunday in cron)

Explanation of Cron Fields

  • Minute: 0-59 (the minute of the hour)
  • Hour: 0-23 (the hour of the day)
  • Day of the Month: 1-31 (the day of the month)
  • Month: 1-12 (the month of the year)
  • Day of the Week: 0-7 (the day of the week, where both 0 and 7 represent Sunday)