Запросы в KUMA (примеры)

Описание функций ClickHouse для работы с запросами: https://clickhouse.com/docs/ru/sql-reference/functions/ 

Базовые запросы

Типы событий в KUMA

Подсчет событий по полю

SELECT count(ID) as count_num, DeviceVendor
FROM `events`
GROUP BY DeviceVendor
ORDER BY count_num DESC LIMIT 250

Выполнение математических операций и сравнений

SELECT DeviceProduct, SourceUserName, round(sum(BytesIn)/1024, 2) as KiloBytes 
FROM `events` 
WHERE BytesIn > '0' OR BytesOut > '0'
GROUP by SourceUserName, DeviceProduct
ORDER BY KiloBytes DESC LIMIT 250

Поиск событий по подстроке (регистрозависимый) с условием И

SELECT *
FROM `events`
WHERE DeviceHostName like '%serv%' AND DeviceProduct = 'Windows'
ORDER BY Timestamp DESC LIMIT 250

Поиск событий по подстроке (регистроНЕзависимый)

SELECT * FROM `events` WHERE DeviceEventCategory ilike '%auditing%' AND DeviceProduct = 'Windows'
ORDER BY Timestamp DESC LIMIT 250

Поиск по исходному событию

SELECT * FROM `events` WHERE Raw ilike '%technique%' ORDER BY Timestamp DESC LIMIT 250

Поиск событий по нескольким значениям, вместо OR можно использовать IN

SELECT * FROM `events` WHERE DeviceEventClassID IN ('BROKER_USERLOGGEDOUT', 'BROKER_USERLOGGEDIN')
AND DeviceProduct = 'Horizon' ORDER BY Timestamp DESC LIMIT 250

Поиск событий по подсети

SELECT * FROM `events` WHERE inSubnet(DeviceAddress, '10.68.85.70/32') ORDER BY Timestamp DESC LIMIT 250

Проверка работы обогащения

Обогащение событий Активами

SELECT * FROM `events` WHERE DeviceAssetID != '' OR SourceAssetID != '' OR DestinationAssetID != ''
ORDER BY Timestamp DESC LIMIT 250

Обогащение событий с LDAP 

SELECT * FROM `events` WHERE SourceAccountID != '' OR DestinationAccountID != ''
ORDER BY Timestamp DESC LIMIT 250

Обогащение событий данными из  TI

SELECT * FROM `events` where not TI="" ORDER BY Timestamp DESC LIMIT 250

Работа с Extra полем

Поиск событий по полю Extra содержащие ключ

SELECT * FROM `events` WHERE visitParamHas(Extra, 'memUsage') ORDER BY Timestamp DESC LIMIT 250

Поиск событий по полю Extra содержащие ключ с определенным значением

SELECT * FROM `events` WHERE visitParamExtractString(Extra, 'memUsage') = '61367' ORDER BY Timestamp DESC LIMIT 250

SELECT * FROM `events` WHERE JSONExtractString(Extra, 'memUsage') = '61367'
ORDER BY Timestamp DESC LIMIT 250

SELECT * FROM `events` WHERE JSONExtractString(Extra, 'memUsage') = '61367'
ORDER BY Timestamp DESC LIMIT 250

Поиск событий по полю Extra НЕ содержащие ключ с определенным значением

SELECT * FROM `events` WHERE visitParamHas(Extra, 'memUsage') 
AND NOT visitParamExtractString(Extra, 'memUsage') = '61367' 
ORDER BY Timestamp DESC LIMIT 250

Работа со временем 

Timestamp по умолчанию в формате epoch time числа  с милисекундами (UnixTimestamp)

Список тайм зон: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones 

Задание таймзоны

SELECT Timestamp, fromUnixTimestamp64Milli(Timestamp, 'Europe/Moscow') as NormTime, DeviceProduct, Name, Message FROM `events` WHERE DeviceProduct = 'EDR' ORDER BY Timestamp DESC LIMIT 250



Указание своего формата времени

SELECT Timestamp, formatDateTime(fromUnixTimestamp64Milli(Timestamp), '%d-%m-%Y %H:%M:%S') as NormTime,
DeviceProduct, Name, Message FROM `events` 
WHERE DeviceProduct = 'EDR' ORDER BY Timestamp DESC LIMIT 250

Указание

Ссвойего формата времени с таймзоной

SELECT Timestamp, formatDateTime(fromUnixTimestamp64Milli(Timestamp), '%d-%m-%Y %H:%M:%S', 'Europe/Moscow') as NormTime,
DeviceProduct, Name, Message FROM `events` WHERE DeviceProduct = 'EDR' ORDER BY Timestamp DESC LIMIT 250

Свой формат времени с таймзоной

SELECT Timestamp,
formatDateTime(fromUnixTimestamp64Milli(Timestamp), '%d-%m-%Y %H:%M:%S', 'Europe/Moscow') as NormTime,
DeviceProduct, Name, Message
FROM `events` WHERE DeviceProduct = 'EDR' ORDER BY Timestamp DESC LIMIT 250

События в "рабочее время" с 9 до 18

SELECT Timestamp,
formatDateTime(fromUnixTimestamp64Milli(Timestamp), '%d-%m-%Y %H:%M:%S', 'Europe/Moscow') as NormTime,
DeviceProduct, Name, Message 
FROM `events` 
WHERE DeviceProduct = 'EDR' AND toHour(fromUnixTimestamp64Milli(Timestamp, 'Europe/Moscow')) >= 9 AND
toHour(fromUnixTimestamp64Milli(Timestamp, 'Europe/Moscow')) < 18 
ORDER BY Timestamp ASC LIMIT 250

Подсчет события по фильтру  за период вчерашнего дня с 00 до 04 часов с группировкой по SourceAddress

SELECT count(ID) as Count_Num, SourceAddress, groupArray(fromUnixTimestamp64Milli(Timestamp)) as time_stm
FROM `events` 
WHERE DeviceEventClassID = '4624' AND DeviceProduct = 'Windows' AND
Timestamp >= toUnixTimestamp(toStartOfDay((now() - INTERVAL 1 DAY)))*1000 AND
Timestamp <= toUnixTimestamp(toStartOfDay((now() - INTERVAL 1 DAY)) + INTERVAL 4 HOUR)*1000
GROUP BY SourceAddress LIMIT 250

Подсчет уникальных адресов посетителей kb.kuma-community.ru

SELECT count(DISTINCT SourceAddress) as uniqSrcIP 
FROM `events` 
WHERE Code = '200' AND DeviceCustomString2 != '-' AND DestinationServiceName = 'apache_access'
AND DeviceCustomString3 = 'GET' AND DestinationHostName = 'kb' 
AND not inSubnet(SourceAddress, '91.103.66.0/24')

Можно использовать аналогичную более быструю функцию:

SELECT uniq(SourceAddress) as uniqSrcIP
FROM `events`
WHERE Code = '200' AND DeviceCustomString2 != '-' AND DestinationServiceName = 'apache_access' 
AND DeviceCustomString3 = 'GET' AND DestinationHostName = 'kb'
AND not inSubnet(SourceAddress, '91.103.66.0/24') 

Подсчет

Муникальных адресожнв посетителей kb.kuma-community.ru по использоватьдням

SELECT uniq(count(DISTINCT SourceAddress) as uniqSrcIP`metric`,
formatDateTime(fromUnixTimestamp64Milli(Timestamp), '%d-%m-%Y', 'Europe/Moscow') as value
FROM `events`
WHERE Code = '200' AND DeviceCustomString2 != '-' AND DestinationServiceName = 'apache_access'
AND DeviceCustomString3 = 'GET' AND DestinationHostName = 'kb'
AND not inSubnet(SourceAddress, '91.103.66.0/24')


Подсчет уникальных адресов посетителей kb.kuma-community.ru по дням

SELECT count(DISTINCT SourceAddress) as `metric`, formatDateTime(fromUnixTimestamp64Milli(Timestamp), '%d-%m-%Y', 'Europe/Moscow') as value FROM `events` WHERE Code = '200' AND DeviceCustomString2 != '-' AND DestinationServiceName = 'apache_access' AND DeviceCustomString3 = 'GET' AND DestinationHostName = 'kb' AND not inSubnet(SourceAddress, '91.103.66.0/24') GROUP BY value

SELECT avg(toInt32(BytesOut)), SourceAddress
FROM `events`
WHERE BytesOut!= 0 AND Timestamp >= toUnixTimestamp(toStartOfDay((now() - INTERVAL 1 DAY)))*1000
AND Timestamp <= toUnixTimestamp(toStartOfDay((now() - INTERVAL 1 DAY)) + INTERVAL 8 HOUR)*1000
GROUP BY SourceAddress DESC LIMIT 250

SELECT SourceUserName, SourceAddress, SourceHostName, groupArray(FlexString1) as time
FROM `events`
whereWHERE SourceProcessName = 'Create session'
GROUP BY SourceUserName, SourceAddress, SourceHostName LIMIT 10

SELECT count(ID) as cnt, cutToFirstSignificantSubdomain(DestinationHostName) as dstH
FROM `events`
WHERE DeviceCustomString1 = 'Q' AND DestinationProcessName = 'DNS'
AND DeviceCustomString5 IN ('A', 'AAAA', 'HTTPS')
GROUP BY dstH
ORDER BY cnt DESC LIMIT 50

SELECT count(ID) as cnt, extract(TI, '.+category\"\:\"([^"]+).+') as category
FROM `events`
WHERE TI !=''
GROUP BY category
ORDER BY cnt DESC

SELECT *
FROM `events`
WHERE ID IN (
  SELECT arrayJoin(splitByChar(',', replaceRegexpAll(JSON_QUERY(BaseEvents, '$[*].ID'), '\\[|\\]|"| ', ''))) as TestID
  FROM `events`
  WHERE (Type = 3) AND (ID = '25e4eae3-ad6d-4114-b99e-019de3574d16'019de3574d16')
)