# Hidden ‘CWPdoor’ Backdoor in Control Web Panel Lets Attackers Run Stealth Commands on Linux Servers

*Friday, November 6, 2026 at 6:17 AM UTC — Hamer Intelligence Services Desk*

**Published**: 2026-11-06T06:17:31.403Z (2h ago)
**Category**: cyber | **Region**: Global
**Importance**: 8/10
**Sources**: OSINT
**Permalink**: https://hamerintel.com/data/articles/22660.md
**Source**: https://hamerintel.com/summaries

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**Deck**: Researchers have identified a backdoor called CWPdoor on Linux servers running Control Web Panel that lets attackers send specially crafted HTTP requests and keep those requests out of standard access logs.

A newly disclosed backdoor on Linux web servers using Control Web Panel (CWP) is raising alarms among administrators who depend on the software to manage hosting environments.

According to a report highlighted by The Hacker News, attackers are hiding a backdoor dubbed CWPdoor inside systems that run Control Web Panel. The malware allows remote commands to be executed through specially crafted HTTP requests. Those requests are designed so they don’t appear in normal access logs, which makes the activity far harder to spot during routine audits.

Control Web Panel is commonly used to administer websites, databases, and mail services on Linux servers. That central role means that compromising the panel can offer broad access to hosted content and services. With CWPdoor in place, attackers can issue commands to the underlying server and potentially deploy additional tools or change data, all while leaving few traces in conventional web logs.

The stealth aspect is the central operational risk. Many incident-response playbooks start with combing through HTTP and server logs for suspicious patterns. If the triggering requests never appear there, defenders may only discover the compromise after they notice secondary signs such as altered files, abnormal network traffic, or complaints from users about site behavior.

The Hacker News article notes that CWPdoor’s behavior has implications well beyond individual servers, especially for hosting providers that manage large numbers of customer sites from shared infrastructure.

Signals to watch now include security advisories or patches from the Control Web Panel project, detection rules from security vendors tailored to CWPdoor’s techniques, and any confirmed cases of the backdoor being deployed at scale against hosting providers or other high-value targets.