When flashed with the appropriate firmware of course.
Not sure it's 100% applicable, but certainly my proposal would indeed by illegal black-hattery, unless done by a legit pen-tester.
I'd never do such a thing, but I might now be more aware that the little plastic block attached to the socket over there could easily be a cheap, full linux system running some sort of metasploit/neopwn variant...
Additionally these can be hidden in non-electrical objects with small batteries and run for weeks.
That pwn-plug has had some serious mods done to it, with bluetooth, 4G and 802.11 wireless built in!
(--edit-- I see now that those are provided by adaptors, not built in to the box, that does reduce its stealthiness somewhat)
These new ones are much smaller than that by the looks of things though, seemingly on the scale of socket adaptors, rather than (to an up to date eye) quite a big power brick.
Thanks for the link, that was interesting.
Definitely trying this out.
I wonder what the power draw is?
Shame they didn't use microusb connector.
No idea about the trustworthiness of this seller but use the page for general info and lots of photos:
update: only $9.13 with coupon code GBJANRT and use paypal checkout for safety
There is also a source on aliexpress that is $1 cheaper if you are buying bulk.
I wonder if openWRT gives it wifi-N ability, factory firmware only does wifi-G
Add to the fact that internally it's not very different to the venerable TP-Link WR-703N and it's possibly a great OpenWRT device to tinker with.
I've used Gearbest in the past. They're ok to order from generally, but their unsubscribe mailing list email link doesn't work and I had trouble ordering from them initially due to delivery address issues at my end.
Also not forgetting that without modifying the chip it gives the Chinese company that makes it complete access to any files that go near it if it gets internet access.
$24 but you get 2xEthernet, USB host, stable openwrt, a button + 2 state switch (handy for triggering scripts) and the option of an external antenna.
I'm so tempted to order this for $9 but I don't really have a use for it!
I am sure I'll use it as a repeater or remote storage device at some point.
Now if I could justify the two dozen smartphones I have...
"Power consumption: 120 mA typical (400 MHz CPU frequency, Wi-Fi enabled), 60 mA in energy-saving mode (200 MHz, Wi-Fi disabled), 300 mA max"
This is at 5v so ~1.5w max. If you wanted to use even moderate power USB2 peripherals instead of the SD card reader you'd have to inject external 5v power.
However, the built-in wifi chipset doesn't do channel hopping properly while the AR9331 does, meaning that for people doing 802.11 security stuff this is not the chipset for you.
If on the other hand you're not doing 802.11 or anything funky with the hardware, it's a nice little box. I have one using a CDC ether USB gadget to inject rickrolls into web pages.
Interesting. Did you do much hardware-wise for that - like rewire USB D+/D- signals and add/remove some obscure resistor that enables USB gadget mode?
EDIT: Actually there are quite a few boxes out there that do have CDC support built in. The ASUS WL-330NUL uses a stripped down ASUSWRT and has CDC support built-in. You can get the firmware source and build your own version if you like. It's not as friendly as OpenWRT (which is saying something) but is workable if you persevere.
Also only 4mb for rom.
edit: okay they mention wireless range so it is wifi device
And why would you want microUSB?
 - https://www.dokuwiki.org/config:indexdelay
mtd_write is that already on the device? if not where can I get the proper binary for its cpu?
ordered one for $9 shipped as a play-toy to see what it can do, will take a few weeks to get here though
I checked out their website but it's Chinese-only, so not of great help to me.
It's possible to do more general purpose stuff with DD-WRT as well, but it's not quite as flexible . IIRC you can install your own packages there too, but it is set up to be more streamlined as a SOHO router.