如何查找和播放Lynda.com Android或Windows应用下载的视频 [英] How to find and play videos downloaded by Lynda.com Android or Windows app
问题描述
有一个App通过Android和Windows应用程序下载他们的视频进行离线观看。我想知道这个应用程序如何保存这些视频，如果它们被加密，如何解密和播放？
我是一个程序员，但我对Android / Windows应用程序开发，这里是我迄今为止能够进行的攻击：
在Android上
似乎它在
/ storage / emulated / 0 / Android / data / com中保存视频。 .android.root / files / videos // encrypted /
这些文件没有扩展名，我将它们复制到我的笔记本电脑上，并尝试给不同的流行媒体延伸，在WMP，VLC& Quicktime Player。
我尝试使用 TrID （如此链接，此实用程序表明它是一个mp3文件（而应该是一个视频）我将扩展名更改为 mp3 ，它没有起作用。
我尝试在ISO buster中打开文件最后在尝试不同的事情时，在Android系统本身，当我选择计算检查的选项时，它会显示一些 MD5 和 SHA- 1 值我不太熟悉这些术语，但是想出来，这些文件似乎是加密的。
如果我尝试直接打开这个文件在Android上，系统开始生成Hex Dump，然后文件浏览器崩溃。
现在如果这些文件真的是视频文件并加密，有没有办法我可以解密并直接在视频中播放玩家？
在Windows商店的应用程序在我的笔记本电脑的Windows 8.1
我发现应用程序文件存储在：
C：\Program Files\WindowsApps\.com..com_1.5.0 .2_neutral_split.scale-140 _
C：\Program Files\WindowsApps\.com..com_1.5.0.2_x64 __
C：\Program Files\WindowsApps\.com..com_2015.924.1324.2728_neutral_〜_
我能够弄清楚如何为当前登录的用户分配权限，并获得访问这些路径的访问权限，但根本无法进一步找到这些文件夹中的加密或未加密的视频文件。 p>
我明白，如果我只想下载视频文件，会有更好的和更简单的方法 - 直接登录他们网站和使用任何视频抓取应用程序或扩展名，它是那么容易，这是w or / p>
但是我的意图不是下载视频，而是我只是好奇地去做学习和探索事物的道德黑客。只是想了解是否可以解密，找到适合的扩展名，直接在没有应用程序的情况下直接播放它们。而Android和Windows应用程序在哪里实际将这些视频存储在我自己的设备上，我无法访问/播放没有应用程序..完美的应用程序开发人员！
任何帮助或指点赞赏。
我想知道同样的事情，我用windirstat做了一些探索，发现一大堆文件位于：
C：\Users\ * username * \AppData\Local\Packages\lynda。 com.lynda.com_0dmhem0sv94sr\LocalState\offline\194074
他们是.file但是大一些是视频，它们在vlc中播放得很好。可能会与他们混乱，并添加.avi或任何，到最后的完整性，如果你想.. ..
There is an App which features downloading their videos for offline viewing via their Android and Windows app. I was wondering where does this app saves these videos and if they are encrypted, how to decrypt and play them?
I am a programmer but I know nothing about Android/windows app development, here is what I have been able to hack so far:
On Android
It seems like it saves videos at
/storage/emulated/0/Android/data/com..android.root/files/videos//encrypted/
These files have no extension, I copied them to my laptop and tried giving different popular media extensions, nothing worked so far in neither of WMP, VLC & Quicktime Player.
I tried to identify file type using TrID (as specified in this link and this utility suggests it is an mp3 file (while it should be a video), I changed the extension to mp3, it did not worked either.
I tried opening the file in ISO buster and several other apps. Finally while trying different things, on android system itself when I choose the option to compute checks, it display some MD5 and SHA-1 values. I am not much familiar with these terms but figured out, these files seems to be encrypted.
If I try to directly open this file on Android, System starts generating Hex Dump and then file explorer crashes.
Now if these files are really the video files and are encrypted, is there a way I can decrypt them and play directly in a video player?
On windows store App in my laptop's Windows 8.1
I found App files are stored at:
C:\Program Files\WindowsApps\.com..com_1.5.0.2_neutral_split.scale-140_
C:\Program Files\WindowsApps\.com..com_1.5.0.2_x64__
C:\Program Files\WindowsApps\.com..com_2015.924.1324.2728_neutral_~_
I was able to figure out how to assign privileges to currently logged in User and gain the access to reach at these paths but couldn't make any further progress to find encrypted or non-encrypted video files in these folders at all.
I understand that if I really just want to download the video files there is much better and easier way - directly log in to their website and use any video grabber application or extension, it's as easy as that, which does works.
But my intention here is not to download videos but rather I am just curious to do ethical hacking for learning and exploring things. Just want to understand whether it is even possible to decrypt, find appropriate extension and play them directly without the app or not. And where does both Android and Windows Apps are actually storing these videos on my own device which I am unable to access/play without App.. huh well done app developers!
Any help or pointers appreciated.
I was wondering the same thing and I done some exploring with windirstat and found a large bunch of files at:
C:\Users\*username*\AppData\Local\Packages\lynda.com.lynda.com_0dmhem0sv94sr\LocalState\offline\194074
They are .file but the large ones are the videos and they play fine in vlc. Could probably mess around with them and add the .avi or whatever, to the end for completeness if you wanted..
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