This article describes FAQs and solutions of Alibaba Cloud Security Center.

Release history

What are the differences between Server Guard, Threat Detection Service, and Security Center?

Purchase and renewal

How do I change specifications in the Security Center console?

What can I do if Security Center prompts that the service is about to expire?

What can I do if the number of servers in Security Center exceeds the number of protected assets?

Permission

What can I do if the system prompts that my RAM user account is not authorized to perform the current operation?

Installation and uninstallation

Install the Security Center agent on servers in private networks

Can I install the Security Center agent on a virtual machine or lightweight server?

How do I remove an external server from protected assets?

Instance exceptions

Abnormal CPU usage in ECS Linux: minerd, tplink, and other mining processes

How do I repair an ECS instance infected with a virus or malware?

Website exceptions

Use Security Center to check for intrusion causes

How can I prevent my website from being blocked due to trojans?

Events

How can I detect security threats on my server?

How do I view the defense capabilities that I have enabled?

Which types of alerts can be handled by the quarantine operation?

How do I handle a false positive?

What should I do if Security Center Basic Edition has detected webshells or other threats?

How do I find the webshell detection feature in Security Center?

Which types of alerts can be automatically handled without any manual operation?

Security alerts FAQ

What can I do if "Suspicious Network Connection-Active Connection to Malicious Download Source" is displayed in the Security Center console?

What can I do if "Suspicious Network Connection-Access Malicious Domain" is displayed in the Security Center console?

How can I detect unusual logons and receive alerts in the Security Center console?

Vulnerabilities

Possible causes of vulnerability fix failures

FAQ about system vulnerability fixes

Linux software vulnerability fix command is empty

How do I manually detect system software vulnerabilities?

Security Center cannot verify system vulnerability fixes

Software vulnerability feature

Vulnerability detection cycle

Vulnerability scan FAQ

Wget buffer overflow vulnerability

Why am I unable to see vulnerabilities or the vulnerabilities of a specified device in the console?

What do I do if Security Center reports an emergency vulnerability?

FAQ about fixing vulnerabilities with Ubuntu kernel patches

Does Security Center support Elasticsearch vulnerability detection?

The "0x80240017 104 (Patch Not Applicable)" error is returned when you fix Windows vulnerabilities

Baseline

Suggestions on handling baseline risks

How do I handle a failed baseline check verification?

Baseline check FAQ

Logs

How do I view the log file of the Security Center agent?

AK and password leakages

Handle leakage of high-risk sensitive information

Other FAQs

Information collection scope of Security Center

The "Invalid token" error is returned in the Security Center console

How do I handle incompatibility between the browser and the Alibaba Cloud console?