据我所知,Chrome浏览器在浏览器历史数据库中使用WebKit时间格式作为时间戳。自1601年1月以来,WebKit时间以毫秒表示。
我找到了许多文章,似乎对我的问题有答案,但到目前为止还没有一篇有效。常见的答案是使用下面的公式将WebKit转换为人类可读的本地时间:
SELECT datetime((time/1000000)-11644473600, 'unixepoch', 'localtime') AS time FROM table;
资料来源:https://linuxsleuthing.blogspot.com/2011/06/decoding-google-chrome-timestamps-in.html What is the format of Chrome's timestamps?
我尝试在通过Osquery收集数据时转换时间戳,使用下面的配置。
"chrome_browser_history" : {
"query" : "SELECT urls.id id, urls.url url, urls.title title, urls.visit_count visit_count, urls.typed_count typed_count, urls.last_visit_time last_visit_time, urls.hidden hidden, visits.visit_time visit_time, visits.from_visit from_visit, visits.visit_duration visit_duration, visits.transition transition, visit_source.source source FROM urls JOIN visits ON urls.id = visits.url LEFT JOIN visit_source ON visits.id = visit_source.id",
"path" : "/Users/%/Library/Application Support/Google/Chrome/%/History",
"columns" : ["path", "id", "url", "title", "visit_count", "typed_count", "last_visit_time", "hidden", "visit_time", "visit_duration", "source"],
"platform" : "darwin"
}
"schedule": {
"chrome_history": {
"query": "select distinct url,datetime((last_visit_time/1000000)-11644473600, 'unixepoch', 'localtime') AS time from chrome_browser_history where url like '%nhl.com%';",
"interval": 10
}
}
由此产生的事件具有1600年以来的时间戳:
"time":"1600-12-31 18:46:16"
如果我更改配置以拉取原始时间戳而不进行转换,则会得到如下所示的戳:
"last_visit_time":"1793021894"
从我读到的WebKit时间来看,它是用17位数字表示的,这显然不是我看到的。所以我不确定这是一个Osquery,Chrome,还是查询的问题。感谢所有的帮助和洞察力!
发布于 2020-04-15 03:34:40
解决了。datetime转换需要在表定义查询中进行。即在"chrome_browser_history“下定义的查询。
"chrome_browser_history" : {
"query" : "SELECT urls.id id, urls.url url, urls.title title, urls.visit_count visit_count, urls.typed_count typed_count, datetime(urls.last_visit_time/1000000-11644473600, 'unixepoch') last_visit_time, urls.hidden hidden, visits.visit_time visit_time, visits.from_visit from_visit, visits.visit_duration visit_duration, visits.transition transition, visit_source.source source FROM urls JOIN visits ON urls.id = visits.url LEFT JOIN visit_source ON visits.id = visit_source.id",
"path" : "/Users/%/Library/Application Support/Google/Chrome/%/History",
"columns" : ["path", "id", "url", "title", "visit_count", "typed_count", "last_visit_time", "hidden", "visit_time", "visit_duration", "source"],
"platform" : "darwin"
}
"schedule": {
"chrome_history": {
"query": "select distinct url,last_visit_time from chrome_browser_history where url like '%nhl.com%';",
"interval": 10
}
}
尝试在osquery调度查询中进行转换(就像我之前尝试的那样)将不会起作用。即:
"schedule": {
"chrome_history": {
"query": "select distinct url,datetime((last_visit_time/1000000)-11644473600, 'unixepoch', 'localtime') AS time from chrome_browser_history where url like '%nhl.com%';",
"interval": 10
}
}
发布于 2020-04-14 19:02:25
尝试:
SELECT datetime(last_visit_time/1000000-11644473600, \"unixepoch\") as last_visited, url, title, visit_count FROM urls;
这是我不久前写的一段代码,它使用ATC配置运行osqueryi,读取chrome历史文件,导出为json,并将json卷曲到API端点。
https://gist.github.com/defensivedepth/6b79581a9739fa316b6f6d9f97baab1f
发布于 2020-04-15 00:07:36
你正在处理的东西,是非常直接的sqlite。因此,我将首先在sqlit中进行调试。
首先,您应该验证数据是否符合您的预期。在我的机器上,我看到:
$ cp Library/Application\ Support/Google/Chrome/Profile\ 1/History /tmp/
$ sqlite3 /tmp/History "select last_visit_time from urls limit 2"
13231352154237916
13231352154237916
其次,我将验证潜在的数学:
sqlite> select datetime(last_visit_time/1000000-11644473600, "unixepoch") from urls limit 2;
2020-04-14 15:35:54
2020-04-14 15:35:54
如果您将配置片段作为我们可以复制/粘贴的文本包含进来,那么测试它将会更容易。
https://stackoverflow.com/questions/61197346
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