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Infrastructure Operations

Server Security Hardening & Malware Remediation

Comprehensive Linux and Windows server security. Firewall configuration, SSH hardening, Fail2Ban, ModSecurity WAF, and malware cleanup services.

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Zero-Credential Intake
L2 / L3 Escalations
24/7 SLA Available
security-audit / lmd-csf | sec-node.servercare360.net
Linux Diagnostic CLI
root@sec-node:~# maldet -a /home/*/public_html
Linux Malware Detect v1.6.4 {scan} processed 48,210 files in 2m 14s. {scan} 0 malicious signatures found. All accounts clean.
root@sec-node:~# csf -e && csf -r
*WARNING* Testing mode is DISABLED. All 14 security chains active.
root@sec-node:~#

Supported Platforms & Technologies:

CSF / LFD firewalld nftables Fail2Ban ModSecurity WAF Maldet (LMD) ClamAV cPHulk OpenSSH Hardening HSTS / TLS 1.3

Engineering Scope & Deliverables

Concrete administration, tuning, and incident resolution capabilities for this environment.

Firewalls

Firewall & Port Hardening

Configuring CSF/LFD, firewalld, or nftables/iptables with custom rate limits, country blocking, and closing all unnecessary exposed listening daemons.

Access Control

SSH & Access Security

Enforcing ED25519/RSA-4096 SSH keys, disabling password authentication, moving SSH off port 22, and enforcing sudo audit logs.

Intrusion Defense

Brute-Force & Intrusion Prevention

Deploying Fail2Ban jails and cPHulk rules with progressive ban times for SSH, FTP, webmail, and WordPress wp-login endpoints.

Malware Response

Malware Scanning & Incident Remediation

Deep file scanning using Maldet (LMD) and ClamAV, isolating compromised PHP webshells, cleaning injected backdoors, and repairing core files.

WAF

Web Application Firewall (WAF)

Configuring ModSecurity with OWASP Core Rule Set (CRS) or COMODO WAF to block SQL injection, cross-site scripting (XSS), and path traversal.

Crypto

SSL/TLS Hardening & HTTP Headers

Enforcing TLS 1.2 and 1.3, disabling deprecated ciphers, and deploying security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options).

Zero-Credential Form Policy

Please do not submit root passwords, private SSH keys, sudo tokens, or database secrets through website intake forms. When you initiate an engagement, our engineers establish an ephemeral encrypted exchange channel.
Engineering FAQ

Frequently Asked Questions

Clear answers about operational models, access security, and engineering scope.

01 How do you respond if a server has been hacked or infected with malware?

We isolate network exposure, audit active processes and cron jobs, scan all web directories with Maldet and ClamAV, remove injected webshells, patch software entry points, and change all server and database credentials.

02 Do you configure ModSecurity WAF without breaking legitimate website forms?

Yes. We deploy ModSecurity in detection mode initially, tune rules to eliminate false positives for CMS operations, and then enforce active blocking.

Infrastructure Support

Ready to stabilize and optimize your server security hardening & malware remediation?

Connect with our systems engineering team for a dedicated assessment of your production servers, hosting panels, or cloud instances.

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