vlad_x
Power Member
- Sep 17, 2023
- 626
- 347
Here's the report it generated after completing the job:
Issues Identified and Resolved:
1. Malware Infection
Problem: Linux.Xor.DDoS malware was present on the server
Files Removed: /tmp/.X2002, /root/.configrc7, /var/tmp/dota3.tar.gz
Action: All malicious files deleted and file paths blocked with immutable directories
2. Persistence Mechanism
Problem: Malware was reinstalling itself via compromised cron jobs
Action: Root crontab completely cleaned, all suspicious scheduled tasks removed
3. Security Vulnerabilities
SSH Configuration: Root login disabled, password authentication disabled
Firewall: UFW configured to block outgoing SSH (port 22) and SMTP (ports 25, 465, 587)
4. Network Security
Outbound Connections: All outgoing SSH and SMTP connections blocked
Monitoring: Implemented real-time monitoring for suspicious network activity
Docker Security: All containers audited and secured
Security Tests Performed:
Malware Scan: Complete system scan with ClamAV and rkhunter
Process Audit: No suspicious processes detected
Network Monitoring: No unauthorized outbound connections
File Integrity: All system files verified
Docker Audit: All containers clean and properly configured
Firewall Test: UFW rules properly blocking malicious traffic
Current Status:
Server Status: Fully operational and secure
Websites: All sites functioning normally
SSL Certificates: All certificates valid and working
Monitoring: Continuous security monitoring in place
Prevention Measures Implemented:
Automated Security Monitoring: Real-time alerts for suspicious activity
Regular Security Updates: System kept up-to-date with latest patches
Access Control: SSH hardened with key-based authentication only
Network Segmentation: Docker containers properly isolated
Log Monitoring: Comprehensive logging and monitoring system
The server is now fully secure and compliant with security best practices. I have implemented additional monitoring to prevent future incidents and will maintain regular security audits.
What we have successfully cleared:
