- What's New
- Product Bulletin
- Service Overview
- Billing
- Getting Started
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User Guide
- Creating a User and Granting Permissions
- Granting Permissions on Associated Cloud Services
- Accessing HSS
- Checking the Dashboard
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Asset Management
- Asset Management
- Server Fingerprints
- Container Fingerprints
- Server Management
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Container Management
- Viewing the Container Node Protection Status
- Exporting the Container Node List
- Managing Local Images
- Managing SWR Private Images
- Managing SWR Shared Images
- Managing SWR Enterprise Edition Images
- Viewing Container Information
- Handling Unsafe Containers
- Uninstalling the Agent from a Cluster
- Disabling Protection for Container Edition
- Protection Quota Management
- Risk Management
- Server Protection
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Container Protection
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Container Firewalls
- Container Firewall Overview
- Configuring a Network Defense Policy (for a Cluster Using the Container Tunnel Network Model)
- Configuring a Network Defense Policy (for a Cluster Using the VPC Tunnel Network Model)
- Configuring a Network Defense Policy (for a Cluster Using the Cloud Native Network 2.0 Model)
- Container Cluster Protection
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Container Firewalls
- Detection and Response
- Security Operations
- Installation and Configuration on Servers
- Installation and Configuration on Containers
- Plug-in Settings
- Audit
- Monitoring
- Permissions Management
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Best Practices
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Suggestions on How to Fix Official Disclosed Vulnerabilities Provided by HSS
- Git Credential Disclosure Vulnerability (CVE-2020-5260)
- SaltStack Remote Command Execution Vulnerabilities (CVE-2020-11651 and CVE-2020-11652)
- OpenSSL High-risk Vulnerability (CVE-2020-1967)
- Adobe Font Manager Library Remote Code Execution Vulnerability (CVE-2020-1020/CVE-2020-0938)
- Windows Kernel Elevation of Privilege Vulnerability (CVE-2020-1027)
- Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601)
- Third-Party Servers Accessing HSS Through a Direct Connect and Proxy Servers
- Installing the HSS Agent Using CBH
- Using HSS to Improve Server Login Security
- Using HSS and CBR to Defend Against Ransomware
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Suggestions on How to Fix Official Disclosed Vulnerabilities Provided by HSS
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API Reference
- Before You Start
- Calling APIs
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API Description
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Asset Management
- Collecting Asset Statistics, Including Accounts, Ports, and Processes
- Querying the Account List
- Querying Open Port Statistics
- Querying the Process List
- Querying the Software List
- Querying Automatic Startup Item Information
- Querying the Server List of an Account
- Querying the Open Port List of a Single Server
- Querying the Server List of the Software
- Querying the Service List of Auto-Started Items
- Obtaining the Account Change History
- Obtaining the Historical Change Records of Software Information
- Obtaining the Historical Change Records of Auto-started Items
- Ransomware Prevention
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Baseline Management
- Querying the Weak Password Detection Result List
- Querying the Password Complexity Policy Detection Report
- Querying the Result List of Server Security Configuration Check
- Querying the Check Result of a Security Configuration Item
- Querying the Checklist of a Security Configuration Item
- Querying the List of Affected Servers of a Security Configuration Item
- Querying the Report of a Check Item in a Security Configuration Check
- Quota Management
- Intrusion Detection
- Server Management
- Policy Management
- Vulnerability Management
- Web Tamper Protection
- Tag Management
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Asset Management
- Appendixes
- Change History
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FAQs
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About HSS
- What Is Host Security?
- What Is Container Security?
- What Is Web Tamper Protection?
- What Are the Relationships Between Images, Containers, and Applications?
- How Do I Use HSS?
- Can HSS Protect Local IDC Servers?
- Is HSS in Conflict with Any Other Security Software?
- What Are the Differences Between HSS and WAF?
- Can HSS Be Used Across Accounts?
- What Is the HSS Agent?
- Can HSS Be Used Across Clouds?
- Can I Upgrade My HSS Edition?
- Can HSS Automatically Detect and Remove Viruses?
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Agent
- Is the Agent in Conflict with Any Other Security Software?
- How Do I Uninstall the Agent?
- What Should I Do If Agent Installation Failed?
- How Do I Fix an Abnormal Agent?
- What Is the Default Agent Installation Path?
- How Many CPU and Memory Resources Are Occupied by the Agent When It Performs Scans?
- Do Different HSS Editions Share the Same Agent?
- How Do I View Servers Where No Agents Have Been Installed?
- What Resources Will Be Accessed by the Agent After It Is Installed on a Server?
- How Do I Use Images to Install Agents in Batches?
- What Do I Do If I Cannot Access the Download Link of the Windows Or Linux Agent?
- What Do I Do If Agent Upgrade Fails and the Message "File replacement failed" Is Displayed?
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Vulnerability Management
- How Do I Fix Vulnerabilities?
- What Do I Do If an Alarm Still Exists After I Fixed a Vulnerability?
- Why a Server Displayed in Vulnerability Information Does Not Exist?
- Do I Need to Restart a Server After Its Vulnerabilities Are Fixed?
- Can I Check the Vulnerability and Baseline Fix History on HSS?
- What Do I Do If Vulnerability Fix Failed?
- Why Can't I Select a Server During Manual Vulnerability Scanning or Batch Vulnerability Fixing?
- What Do I Do If a Vulnerability Scan Fails?
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Detection & Response
- How Do I View and Handle HSS Alarm Notifications?
- What Do I Do If My Servers Are Subjected to a Mining Attack?
- Why a Process Is Still Isolated After It Was Whitelisted?
- Why an Attack Is Not Detected by HSS?
- Can I Unblock an IP Address Blocked by HSS, and How?
- Why a Blocked IP Address Is Automatically Unblocked?
- How Often Is Malware Scan and Removal?
- What Do I Do If an IP Address Is Blocked by HSS?
- How Do I Defend Against Ransomware Attacks?
- How Do I Add High-risk Command Execution Alarms to the Whitelist?
- Why Doesn't HSS Generate Alarms for Some Web Shell Files?
- Abnormal Logins
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Brute-force Attack Defense
- How Does HSS Intercept Brute Force Attacks?
- How Do I Handle a Brute-force Attack Alarm?
- How Do I Defend Against Brute-force Attacks?
- How Do I Unblock an IP Address?
- What Do I Do If HSS Frequently Reports Brute-force Alarms?
- What Do I Do If a Huawei Cloud IP Address Trigger a Brute-force Attack Alarm?
- What Do I Do If the Port in Brute-force Attack Records Is Not Updated?
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Baseline Inspection
- Why Are Weak Password Alarms Generated After the Weak Password Detection Policy Is Disabled?
- How Do I Install a PAM and Set a Proper Password Complexity Policy in a Linux OS?
- How Do I Set a Proper Password Complexity Policy in a Windows OS?
- How Do I Handle Unsafe Configurations?
- How Do I View Configuration Check Reports?
- How Do I Handle a Weak Password Alarm?
- How Do I Set a Secure Password?
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Web Tamper Protection
- Why Do I Need to Add a Protected Directory?
- How Do I Modify a Protected Directory?
- What Should I Do If WTP Cannot Be Enabled?
- How Do I Modify a File After WTP Is Enabled?
- What Can I Do If I Enabled Dynamic WTP But Its Status Is Enabled but not in effect?
- What Are the Differences Between the Web Tamper Protection Functions of HSS and WAF?
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Container Security
- How Do I Disable Node Protection?
- How Do I Enable Node Protection?
- How Do I Enable the API Server Audit for an On-Premises Kubernetes Container?
- What Do I Do If the Container Cluster Protection Plug-in Fails to Be Uninstalled?
- What Do I Do If the Cluster Connection Component (ANP-Agent) Failed to Be Deployed?
- What Do I Do If Cluster Permissions Are Abnormal?
- Ransomware Prevention
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Security Configurations
- How Do I Clear the SSH Login IP Address Whitelist Configured in HSS?
- What Can I Do If I Cannot Remotely Log In to a Server via SSH?
- How Do I Use 2FA?
- What Do I Do If I Cannot Enable 2FA?
- Why Can't I Receive a Verification Code After 2FA Is Enabled?
- Why Does My Login Fail After I Enable 2FA?
- How Do I Add a Mobile Number or Email Address for 2FA?
- If I Choose to Use Verification Code for 2FA, How Do I Get the Code?
- Will I Be Billed for Alarm Notifications and SMS?
- Why No Topics Are Available for Me to Choose When I Configure Alarm Notifications?
- Can I Disable HSS Alarm Notifications?
- How Do I Modify Alarm Notification Items?
- How Do I Disable the SELinux Firewall?
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Protection Quota
- How Do I Extend the Validity Period of HSS Quotas?
- How Do I Filter Unprotected Servers?
- Why Can't I Find the Servers I Purchased on the Console?
- What Do I Do If My Quotas Are Insufficient and I Failed to Enable Protection?
- How Do I Allocate My Quota?
- If I Change the OS of a Protected Server, Does It Affect My HSS Quota?
- Why Doesn't an HSS Edition Take Effect After Purchase?
- How Do I Change the Protection Quota Edition Bound to a Server?
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Others
- How Do I Use the Windows Remote Desktop Connection Tool to Connect to a Windows Server?
- How Do I Check HSS Log Files?
- How Do I Enable Logging for Login Failures?
- How Do I Clear an Alarm on Critical File Changes?
- Is HSS Available as Offline Software?
- Why Can't I View All Projects in the Enterprise Project Drop-down List?
- How Do I Enable or Disable HSS Self-Protection?
- What Do I Do If Windows Self-Protection Cannot Be Disabled?
- Why Is a Deleted ECS Still Displayed in the HSS Server List?
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About HSS
How Does HSS Intercept Brute Force Attacks?
Types of Detectable Brute Force Attacks
HSS can detect the following types of brute force attacks:
- Windows: SQL Server (automatic interception is not supported currently) and RDP
- Linux: MySQL, vfstpd, and SSH
If MySQL, vfstpd, or SSH is installed on your server, after HSS is enabled, the agent will add rules to iptables to prevent brute force attacks. If a brute-force attack is detected, its source IP address will be added to the blocking list.
- Added MySQL rule: IN_HIDS_MYSQLD_DENY_DROP
- Added vfstpd rule: IN_HIDS_VSFTPD_DENY_DROP
- Added SSH rule: If SSH on the server does not support the TCP Wrapper interception mode, the SSH uses iptables for interception. Therefore, the IN_HIDS_SSHD_DENY_DROP rule will be added to iptables. If you have configured an SSH login whitelist, the IN_HIDS_SSHD_DENY_DROP and IN_HIDS_SSHD_WHITE_LIST will be added to iptables.
Existing iptables rules are used for blocking brute-force attacks. You are advised to keep them. If they are deleted, HSS will not be able to protect MySQL, vfstpd, or SSH from brute-force attacks.
How Brute Force Attacks Are Intercepted
Brute-force attacks are a type of common intrusion attacks. Attackers submit many server passwords until eventually guessing correctly and gaining control over a server.
HSS uses brute-force detection algorithms and an IP address blacklist to effectively prevent brute-force attacks and block attacking IP addresses. The blocking duration is 12 hours. If a blocked IP address does not perform brute-force attacks in the default blocking duration, it will be automatically unblocked. HSS supports 2FA to authenticate user identity, effectively preventing attackers from hacking accounts.
You can set common login IP addresses and SSH IP address whitelist that will not be blocked.
If HSS detects account cracking attacks on servers using Kunpeng EulerOS (EulerOS with Arm), it does not block the source IP addresses and only generates alarms. The SSH login IP address whitelist does not take effect for such servers.
Alarm Policies
- If a hacker successfully cracks the password and logs in to a server, a real-time alarm will be immediately sent to specified recipients.
- If a brute-force attack and risks of account hacking are detected, a real-time alarm will be immediately sent to specified recipients.
- If a brute-force attack is detected and failed, and no unsafe settings (such as weak passwords) are detected on the server, no real-time alarms will be sent. HSS will summarize all attacks in a day in its daily alarm report. You can also view blocked attacks on the Detection & Response > Alarms page of the HSS console.
Viewing Brute Force Cracking Detection Results
- Log in to the management console.
- In the upper left corner of the page, select a region, click
, and choose Security & Compliance > HSS.
- In the navigation pane, choose Detection & Response > Alarms.
- View the brute force cracking detection result of the server or container.
- View the brute force cracking detection result of the server.
- Click the Server Alarms tab.
- In the Alarm Types area, select Abnormal User Behavior > Brute-force attacks to view alarm event records on the protected server.
- Click the value in the Blocked IP Addresses area to view the blocked attack source IP address, attack type, blocking status, blocking times, blocking start time, and latest blocking time.
- Blocked indicates the brute-force attack has been blocked by HSS.
- Canceled indicates you have unblocked the source IP address of the brute force attack.
NOTE:
The default blocking duration is 12 hours. If a blocked IP address does not perform brute-force attacks in the default blocking duration, it will be automatically unblocked.
- View the brute force cracking detection result of a container.
- Click the Container Alarms tab.
- In the Alarm Types area, select Abnormal User Behavior > Brute-force attacks to view alarm event records on the protected container.
- View the brute force cracking detection result of the server.
Managing Blocked IP Addresses
- If a server is frequently attacked, you are advised to fix its vulnerabilities in a timely manner and eliminate risks.
You are advised to enable 2FA, and configure common login IP addresses and the SSH login IP whitelist.
- If a valid IP address is blocked by mistake (for example, after O&M personnel enter incorrect passwords for multiple times), manually unblock the IP address.
NOTICE:
If you manually unblocked an IP address, but incorrect password attempts from this IP address exceed the threshold again, this IP address will be blocked again.
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