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AlternateStreamView 1.51

Scan your NTFS drives for files containing hidden alternate data streams

by Mike Williams

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Based on 1 ratings
License: Freeware
Operating Systems: Windows 7 (32 bit), Windows 7 (64 bit), Windows 8, Windows Server, Windows Vista (32 bit), Windows Vista (64 bit), Windows XP
Languages: English
Software Cost: Free
Date Updated: 16 April 2015
Watchlist: Add download to my watchlist
Downloads To Date: 1320
Developer: NirSoft
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Scan your NTFS drives for files containing hidden alternate data streams

AlternateStreamView is a small, simple and portable tool which will quickly scan any NTFS drives for files containing alternate data streams.

NTFS normally stores a file's data in just one data stream, but it can add more. Some programs do this legitimately: Internet Explorer tags all the files it downloads with a marker in an alternate data stream. This extra data isn't visible in Explorer, though, so some malware will also use the technology to hide itself.

To find out what might be lurking on your system, simply launch AlternateStreamView, choose the drive you'd like to check and click Scan. The program will immediately leap into action, examining every file on that drive and reporting anything that contains an extra stream.

When it's done you'll see a (probably) lengthy list of files, with the name of the stream they contain, the file path, and stream size. Most, if not all of these will be entirely legitimate: if you use IE, for instance, you'll see most of your favourites have a favicon stream which stores an icon for them. But if there is a malware issue, a large stream which you can't explain, then the program could provide a useful pointer for further research (just Googling for the relevant file name may help).

And if you really know what you're doing then AlternateStreamView offers plenty of additional tricks, including options to export a stream to a file, or delete streams entirely. (Beware of taking the latter approach, though. If a legitimate program is using streams to store configuration information, say, then problems may result if this disappears without warning.)

Version 1.51:

  • Added 'Run As Administrator' option (Ctrl+F11), which allows you to easily run AlternateStreamView as administrator on Windows Vista/7/8/2008.

AlternateStreamView is a speedy data stream scanner with plenty of features, which is particularly impressive as they're all contained in a tiny 35KB executable.

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Spotlight: Free Full Software

WhatsApp Messenger 2.16.11

Free Full Commercial Software

WhatsApp Messenger is the world's most popular instant messaging app for smartphones.

You can use it to send and receive text and voice messages, photos, videos, even call your friends in other countries, and because it uses your phone's internet connection it might not cost you anything at all (depending on whether you'll pay data charges).

It's easy to set up and use. There's no need to create and remember new account names or pins because it works with your phone number, and uses your regular address book to find and connect you with friends who use WhatsApp already.

You can talk one-to-one or in group chats, and because you're always logged in there's no way to miss messages. Even if your phone is turned off, WhatsApp will save your messages and display them as soon as you're back online.

There's plenty more (location sharing, contact exchange, message broadcasting) and the app is free for a year, currently $0.99/ year afterwards.

What's new in 2.16.11?

 - Due to a bug in iOS 10, your notification sounds may not properly play until you restart your iPhone (press and hold the power and home buttons for 10 seconds).
- In groups, you can now mention specific people to get their attention by typing the @ symbol and choosing someone from the picker. 
- When forwarding messages, you can now send to multiple chats at once 
- Ask Siri to send WhatsApp messages or place WhatsApp calls (iOS 10+) 
- Answer WhatsApp calls right from your lock screen, just like a standard phone call (iOS 10+) 
- A new Widget lets you quickly jump to a recent chat or see which chats have unread messages (iOS 10+)