🔧 Project 1: ClamAV Virus Scan Automation

 Goal: Secure my Ubuntu system with regular virus scans using ClamAV.

What I Did:

• Installed and configured ClamAV.

• Wrote a bash script using clamdscan to scan key directories.

• Scheduled the script to run weekly via cron.

• Script logs results and quarantines infected files.

Skills Used: Bash scripting, Cron jobs, Log file management.

Challenges Solved: Making sure the scan didn’t overload system resources and keeping logs organized for review.

#!/bin/bash

# === ClamAV Automated Scan & Cleanup ===

export DISPLAY=:0

export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$(id -u)/bus"

LOG_FILE="$HOME/clamav_auto_scan.log"

SCAN_TARGET="/home/v"

START_TIME=$(date '+%Y-%m-%d %H:%M:%S')

echo "[$START_TIME] 🔍 Starting system cleanup and scan..." >> "$LOG_FILE"

# --- System Cleanup ---

echo "Cleaning system packages..." >> "$LOG_FILE"

sudo apt clean && sudo apt autoremove -y >> "$LOG_FILE" 2>&1

sudo journalctl --vacuum-time=7d >> "$LOG_FILE" 2>&1

# --- ClamAV SCAN (Primary: clamdscan | Fallback: clamscan) ---

echo "[$START_TIME] 🔍 Starting scan of $SCAN_TARGET..." >> "$LOG_FILE"

run_zenity_success() {

    END_TIME=$(date '+%Y-%m-%d %H:%M:%S')

    zenity --info --title="✅ ClamAV Scan Complete" \

           --text="Scan finished successfully at:\n$END_TIME"

}

run_zenity_error() {

    END_TIME=$(date '+%Y-%m-%d %H:%M:%S')

    zenity --warning --title="❌ ClamAV Scan Failed" \

           --text="Scan failed at:\n$END_TIME\nSee log for details."

}

# Try clamdscan first

if clamdscan --fdpass "$SCAN_TARGET" >> "$LOG_FILE" 2>&1; then

    echo "[$(date '+%Y-%m-%d %H:%M:%S')] ✅ clamdscan completed successfully." >> "$LOG_FILE"

    run_zenity_success

else

    echo "[$(date '+%Y-%m-%d %H:%M:%S')] ⚠️ clamdscan failed. Trying clamscan..." >> "$LOG_FILE"

    if clamscan -r "$SCAN_TARGET" >> "$LOG_FILE" 2>&1; then

        echo "[$(date '+%Y-%m-%d %H:%M:%S')] ✅ clamscan completed successfully." >> "$LOG_FILE"

        run_zenity_success

    else

        echo "[$(date '+%Y-%m-%d %H:%M:%S')] ❌ Both scans failed." >> "$LOG_FILE"

        run_zenity_error

    fi

fi