Huawei Cloud HSS Host Security Skill

Overview

This skill provides AI Agent capabilities for Huawei Cloud HSS (Host Security Service / 主机安全服务), covering daily security inspection, risk diagnosis, and alert handling. It supports querying host assets, vulnerabilities, security baselines, intrusion alerts (trojans, brute-force attacks), and login audit logs, plus updating alert handling status — all via hcloud CLI.

Scope boundaries:

• ✅ Query: host assets, vulnerabilities, baselines, intrusion alerts, login audit logs
• ✅ Diagnose: risk scoring, high-risk vulnerability analysis, abnormal login analysis
• ✅ Manage: update alert handling status (mark as handled, ignored, etc.)
• ❌ Does NOT create or delete host resources
• ❌ Does NOT execute isolation, antivirus, or other high-risk actions
• ❌ Does NOT perform real-time blocking or kill processes

Prerequisites

1. hcloud CLI installed and authenticated with valid AK/SK credentials.
   • Installation guide: see references/cli-installation-guide.md
   • Verify: hcloud configure list shows a valid profile
2. HSS agent deployed on target ECS instances (HSS must be enabled in the console)
3. IAM permissions: HSS read permissions for query operations, HSS write permissions for alert handling.
   • See references/iam-policies.md for least-privilege policy
4. Region: HSS is region-specific. Use --cli-region to specify the target region (e.g., {your-region})

Workflow

1. Identify target → region, project_id, optional host_id filter
2. Query phase → list assets / vulnerabilities / baselines / alerts / login logs
3. Diagnose phase → risk score, high-risk items, abnormal login patterns
4. Handle phase → update alert handling status (requires user confirmation)
5. Output → structured JSON risk list + readable summary report

Core Commands

1. Host Assets (主机资产)

List all protected hosts with agent status, OS type, and risk flags:

hcloud HSS ListHostStatus --cli-region={region} --project_id={project_id} \
  [--host_id={host_id}] [--host_name={host_name}] [--os_type={linux|windows}] \
  [--agent_status={installed|not_installed|online|offline}] \
  [--has_vul=true] [--has_intrusion=true] [--has_baseline=true] \
  [--asset_value={important|common|test}] [--limit=10] [--offset=0]

Show host statistics (total hosts, protected count, risk distribution):

hcloud HSS ShowHostsStatistics --cli-region={region} --project_id={project_id}

Query risk status for specific hosts:

hcloud HSS ListHostsRisk --cli-region={region} --project_id={project_id} \
  --host_id_list.1={host_id_1} [--host_id_list.2={host_id_2}]

2. Vulnerabilities (漏洞)

List all vulnerabilities with filtering by type, status, severity:

hcloud HSS ListVulnerabilities --cli-region={region} --project_id={project_id} \
  [--vul_id={vul_id}] [--vul_name={vul_name}] [--cve_id={cve_id}] \
  [--type={linux_vul|windows_vul|web_cms|app_vul|urgent_vul}] \
  [--status={vul_status}] [--handle_status={handle_status}] \
  [--repair_priority={critical|high|medium|low}] \
  [--asset_value={important|common|test}] [--limit=10] [--offset=0]

List vulnerabilities on a specific host:

hcloud HSS ListHostVuls --cli-region={region} --project_id={project_id} \
  --host_id={host_id} [--type={linux_vul|windows_vul|web_cms|app_vul|urgent_vul}] \
  [--limit=10] [--offset=0]

List hosts affected by a specific vulnerability:

hcloud HSS ListVulHosts --cli-region={region} --project_id={project_id} \
  --type={linux_vul|windows_vul|web_cms|app_vul|urgent_vul} --vul_id={vul_id} \
  [--limit=10] [--offset=0]

Show vulnerability details (choose by type):

# Linux vulnerability
hcloud HSS ShowLinuxVulDetail --cli-region={region} --project_id={project_id} \
  --vul_id={vul_id} --limit=10 --offset=0

# Windows vulnerability
hcloud HSS ShowWindowsVulDetail --cli-region={region} --project_id={project_id} \
  --vul_id={vul_id} --limit=10 --offset=0

# Web-CMS vulnerability
hcloud HSS ShowCmsVulDetail --cli-region={region} --project_id={project_id} \
  --vul_id={vul_id} --limit=10 --offset=0

Show vulnerability statistics:

hcloud HSS ShowVulStatics --cli-region={region} --project_id={project_id}

3. Security Baselines (安全基线)

Show baseline check overview (last check time, check stats, pass rate, top risks):

hcloud HSS ShowBaselineOverview --cli-region={region} --project_id={project_id}

Show baseline statistics:

hcloud HSS ShowBaselineStatistic --cli-region={region} --project_id={project_id}

List hosts affected by a specific baseline check rule:

hcloud HSS ListHostCheckRules --cli-region={region} --project_id={project_id} \
  --check_name={check_name} --standard={cn_standard|hw_standard} --host_id={host_id} \
  [--check_rule_name={rule_name}] [--limit=10] [--offset=0]

⚠️ --standard 为必填参数。

Show security check report for a specific host:

hcloud HSS ShowSecurityCheckHostReport --cli-region={region} --project_id={project_id} \
  --host_id={host_id} --scan_time={scan_time_ms}

⚠️ --scan_time 为必填参数（毫秒级时间戳）。

Show risk configuration detail:

hcloud HSS ShowRiskConfigDetail --cli-region={region} --project_id={project_id} \
  --check_name={check_name} --standard={cn_standard|hw_standard} \
  [--host_id={host_id}]

⚠️ --standard 为必填参数（cn_standard=等保合规标准，hw_standard=云安全实践标准）。

4. Intrusion Alerts — Trojan & Malware (木马/恶意软件告警)

Query alert event history with filtering by event type, severity, handling status:

hcloud HSS ListEventHandleHistory --cli-region={region} --project_id={project_id} \
  [--event_type={event_type}] [--event_class_ids.1={event_class_id}] \
  [--severity={critical|high|medium|low}] [--handle_status={handled|unhandled}] \
  [--host_ip={ip}] [--host_name={name}] [--attack_tag={tag}] \
  [--asset_value={important|common|test}] [--limit=10] [--offset=0]

Common event_class_ids for malware:

List host protection history:

hcloud HSS ListHostProtectHistoryInfo --cli-region={region} --project_id={project_id} \
  --start_time={start_time_ms} --end_time={end_time_ms} [--limit=10] [--offset=0] \
  [--host_id={host_id}] [--file_path={path}]

⚠️ --start_time / --end_time 为必填参数（毫秒级时间戳，相差不超过 30 天）；--host_id 可选。

List antivirus-protected hosts:

# List antivirus-protected hosts (scan_type: quick/full; start_type: now/period)
hcloud HSS ListAntiVirusHost --cli-region={region} --project_id={project_id} \
  --limit=10 --offset=0 --scan_type={quick|full} --start_type={now|period} \
  [--host_id={host_id}] [--policy_id={policy_id}]

⚠️ --limit / --offset / --scan_type / --start_type 为必填参数。 --scan_type 枚举：quick（快速扫描）/ full（全盘扫描）；--start_type 枚举：now（立即启动）/ period（周期启动）。其他值（如 all/manual/auto）会被 API 静默忽略并返回空结果。

5. Intrusion Alerts — Brute Force (暴力破解告警)

Query brute-force attack events (login_0001 = attempt, login_0002 = success):

hcloud HSS ListEventHandleHistory --cli-region={region} --project_id={project_id} \
  --event_class_ids.1=login_0001 --event_class_ids.2=login_0002 \
  [--severity={critical|high|medium|low}] [--handle_status={handled|unhandled}] \
  [--host_ip={ip}] [--limit=10] [--offset=0]

List weak password detection results:

hcloud HSS ListWeakPasswordUsers --cli-region={region} --project_id={project_id} \
  [--host_id={host_id}] [--limit=10] [--offset=0]

6. Login Audit Logs (登录审计日志)

Query common login IPs:

hcloud HSS ListLoginCommonIp --cli-region={region} --project_id={project_id} \
  [--ip_addr={ip}]

Query common login locations:

hcloud HSS ListLoginCommonLocation --cli-region={region} --project_id={project_id} \
  [--area_code={area_code}]

⚠️ 这两个操作仅支持 --ip_addr / --area_code 过滤器（实测 --host_id/--limit/--offset 不支持），不可加分页参数。

7. Risk Diagnosis (风险诊断)

Query overall risk score:

hcloud HSS ShowRiskScore --cli-region={region} --project_id={project_id}

Query risk status for specific hosts:

hcloud HSS ListHostsRisk --cli-region={region} --project_id={project_id} \
  --host_id_list.1={host_id_1}

8. Update Alert Handling Status (告警处置) — ⚠️ Mutating, Requires Confirmation

Handle alert events (mark as handled, ignored, etc.):

hcloud HSS ChangeEvent --cli-region={region} --project_id={project_id} \
  --operate_event_list.1.event_class_id={event_class_id} \
  --operate_event_list.1.event_id={event_id} \
  --operate_event_list.1.event_type={event_type} \
  --operate_event_list.1.occur_time={occur_time_ms} \
  --operate_type={operate_type}

⚠️ --operate_type 是顶层参数（不属于 operate_event_list 数组内）；数组中 event_class_id/event_id/event_type/occur_time 均必填。

operate_type values for ChangeEvent:

• mark_as_handled — Mark as handled (标记已处理)
• ignore — Ignore (忽略)
• add_to_alarm_whitelist — Add to alarm whitelist (加入告警白名单)
• add_to_login_whitelist — Add to login whitelist (加入登录白名单)
• unhandle — Restore to unhandled (恢复未处理)
• do_not_ignore — Cancel ignore (取消忽略)
• remove_from_alarm_whitelist — Remove from alarm whitelist (删除告警白名单)
• remove_from_login_whitelist — Remove from login whitelist (删除登录白名单)

⚠️ ⛔ isolate_and_kill（隔离查杀）、do_not_isolate_or_kill 虽为 API 支持值，但本技能明确不执行隔离/杀毒等高危动作，AI 不得使用。

Update vulnerability handling status:

hcloud HSS ChangeVulStatus --cli-region={region} --project_id={project_id} \
  --operate_type={ignore|not_ignore|immediate_repair|manual_repair|verify|add_to_whitelist} \
  --data_list.1.vul_id={vul_id} --host_data_list.1.host_id={host_id}

⚠️ 漏洞与主机通过 --data_list.[N].vul_id + --host_data_list.[N].host_id 关联传递（没有顶层 --vul_id/--host_id 参数）。

⚠️ Both ChangeEvent and ChangeVulStatus are mutating operations. Always prompt the user for confirmation before executing.

Parameter Confirmation

Output Format

All commands return JSON by default. For inspection reports, the skill aggregates multiple query results into a structured risk summary:

{
  "inspection_time": "2026-08-28T10:00:00Z",
  "region": "{region}",
  "host_summary": { "total": 10, "protected": 8, "at_risk": 3 },
  "vulnerabilities": { "critical": 2, "high": 5, "medium": 12, "low": 8 },
  "baselines": { "pass_rate": "85%", "failed_rules": 7 },
  "alerts": { "unhandled_trojan": 1, "unhandled_brute_force": 3 },
  "risk_score": 72,
  "recommendations": ["Fix 2 critical vulnerabilities on host xxx", "Handle 1 unhandled trojan alert"]
}

Reference Documents

• references/cli-installation-guide.md — hcloud CLI installation and authentication
• references/iam-policies.md — Least-privilege IAM policies for HSS
• references/verification-method.md — Verification and testing methods
• references/dataflow-diagram.md — Data flow diagram
• references/acceptance-criteria.md — Acceptance criteria
• references/hss-event-class-reference.md — HSS event class ID reference

KooCLI Command Format Standard

hcloud HSS ListHostStatus --cli-region={region} --project_id={project_id} [--key=value ...]