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# AWS WAF v2 日志的 Security Lake 查询示例
<a name="example-queries-waf-sourceversion2"></a>

AWS WAF是一种 Web 应用程序防火墙，可用于监控最终用户向您的应用程序发送的 Web 请求并控制对您的内容的访问。

以下是AWS源版本 2 的AWS WAF v2 日志查询示例：

**在过去 7 天内发布来自特定源 IP 的请求**

```
SELECT 
    time_dt,
    activity_name,
    src_endpoint.ip,
    http_request.url.path,
    http_request.url.hostname,
    http_request.http_method,
    http_request.http_headers
FROM "amazon_security_lake_glue_db_us_east_1"."amazon_security_lake_table_us_east_1_waf_2_0" 
WHERE time_dt BETWEEN CURRENT_TIMESTAMP - INTERVAL '7' DAY AND CURRENT_TIMESTAMP
AND src_endpoint.ip = '100.123.123.123'
AND activity_name = 'Post'
LIMIT 25
```

**过去 7 天内与防火墙类型 MANAGED\$1RULE\$1GROUP 匹配的请求**

```
SELECT 
    time_dt,
    activity_name,
    src_endpoint.ip,
    http_request.url.path,
    http_request.url.hostname,
    http_request.http_method,
    firewall_rule.uid,
    firewall_rule.type,
    firewall_rule.condition,
    firewall_rule.match_location,
    firewall_rule.match_details,
    firewall_rule.rate_limit
FROM "amazon_security_lake_glue_db_us_east_1"."amazon_security_lake_table_us_east_1_waf_2_0" 
WHERE time_dt BETWEEN CURRENT_TIMESTAMP - INTERVAL '7' DAY AND CURRENT_TIMESTAMP
AND firewall_rule.type = 'MANAGED_RULE_GROUP'
LIMIT 25
```

**过去 7 天内与防火墙规则中的正则表达式匹配的请求**

```
SELECT 
    time_dt,
    activity_name,
    src_endpoint.ip,
    http_request.url.path,
    http_request.url.hostname,
    http_request.http_method,
    firewall_rule.uid,
    firewall_rule.type,
    firewall_rule.condition,
    firewall_rule.match_location,
    firewall_rule.match_details,
    firewall_rule.rate_limit
FROM "amazon_security_lake_glue_db_us_east_1"."amazon_security_lake_table_us_east_1_waf_2_0" 
WHERE time_dt BETWEEN CURRENT_TIMESTAMP - INTERVAL '7' DAY AND CURRENT_TIMESTAMP
AND firewall_rule.condition = 'REGEX'
LIMIT 25
```

**拒绝获取过去 7 天内触发AWS WAF规则的AWS凭证请求**

```
SELECT 
    time_dt,
    activity_name,
    action,
    src_endpoint.ip,
    http_request.url.path,
    http_request.url.hostname,
    http_request.http_method,
    firewall_rule.uid,
    firewall_rule.type
FROM "amazon_security_lake_glue_db_us_east_1"."amazon_security_lake_table_us_east_1_waf_2_0" 
WHERE time_dt BETWEEN CURRENT_TIMESTAMP - INTERVAL '7' DAY AND CURRENT_TIMESTAMP
AND http_request.url.path = '/.aws/credentials'
AND action = 'Denied'
LIMIT 25
```

**获取过去 7 天内按国家/地区分组的AWS凭证申请**

```
SELECT count(*) as Total,
    src_endpoint.location.country AS Country,
    activity_name,
    action,
    src_endpoint.ip,
    http_request.url.path,
    http_request.url.hostname,
    http_request.http_method
FROM "amazon_security_lake_glue_db_us_east_1"."amazon_security_lake_table_us_east_1_waf_2_0"
WHERE time_dt BETWEEN CURRENT_TIMESTAMP - INTERVAL '7' DAY
    AND CURRENT_TIMESTAMP
    AND activity_name = 'Get'
    AND http_request.url.path = '/.aws/credentials'
GROUP BY src_endpoint.location.country,
    activity_name,
    action,
    src_endpoint.ip,
    http_request.url.path,
    http_request.url.hostname,
    http_request.http_method
```