cPanel Malware Persistence: Cron Jobs, Backdoors and Recurring Infections
A production investigation involving cron persistence, webshells, an ELF backdoor and recurring phishing infections.
Read article1B Telecom
English Blog
Production experience, incident investigations and technical articles about Linux servers, cPanel, infrastructure security, MikroTik, monitoring and web systems.
Articles by Zoltan Egri
Critical cPanel Security Update Released September 8, 2026
Production observations from the September 8 cPanel security release, including newly deployed builds and update verification.
Read articleCPANEL-53195: External Requests Trigger HTTP 500 via 404 Safelock Failure
A production investigation of an unusual cPanel safelock failure and HTTP 500 responses.
Read articleAH00288: Apache Scoreboard Full After Graceful Restarts
Investigating overlapping Apache worker generations and a full scoreboard on cPanel.
Read articleMikroTik RouterOS Vulnerability 2026: Upgrade and Security Audit in Production
RouterOS security updates, production upgrade considerations and post-update auditing.
Read article