Native Protection & Mono by Nihilus

another interesting tutorial from Nihilus. here's the description from the guide:

this tutorial covers a basic understanding of the Mono/Xamarin for Android, specifically how C#/.NET is used lately to protect games and, who knows, even malwares.

here's the link: https://mega.co.nz/#!jpwkTY4J!eXzXCngQAPlUjVvJtiSzEbSxqEv8EbYmMqaLTFxF01Q (updated 5/21/2015)

  i was not aware of this ability to run mono code on android and found it interesting.

related to this, wine is on the way for android. this could get interesting.
http://wiki.winehq.org/FOSDEM2014?action=AttachFile&do=get&target=wine-on-android-fosdem-2014.pdf

Nihilus' Reversing DexGuard 5.x

Here's another tutorial kindly written by Nihilus.

It's a teardown of reversing DexGuard's protections, which are legion, along with some of the thought process behind it. I like it because it's pure reversing -- no cracking of the commercial app.

https://tuts4you.com/download.php?view.3517

alternate link: https://mega.co.nz/#!s8MgkDyY!Qd36YVri66wLN1mXFRCQrlebNnxqRKT-ftrlpybCs80

Kindly post feedback if you're so inclined, and contact me if you'd like to share your reversing knowledge :D

hex's keygen tutorial

Got a new tutorial for you good people. The author is hex and he was kind enough to write it and send it to me. It's a no-nonsense keygen'ing guide.

Here's the download: https://mega.co.nz/#!cg4FFB5b!Sw1a0hB2MHNk72sr8VEU8Wi8LMhxt7mqLtBvCfWikHU

Feel free to leave some comments and let him know what you think.

If you'd like to share a cracking tutorial, I'd be glad to link to it, unless it's shit, so let me know. :D

three MessyBinary tutorials

MessyBinary has been hard at it, writing up some pretty slick tutorials. i'd like to share them with you. bonus points for posting mirrors.

• FaceNiff v2.4 - https://hotfile.com/dl/192441522/1464c87/fn24tut.zip.html
• WifiKill v2.2 - https://hotfile.com/dl/194586198/224b441/wfk22tut.zip.html
• GMD Smart Rotate v2.2.0 - https://hotfile.com/dl/202164304/8ac3409/gsr220tut.zip.html

the android reversing community is continually getting larger, but i'm not aware of any good forum where crackme's and specific app tutorials can be posted. when i find one, i'll let you all know.

update~~

new link for all three tutorials, https://www.mediafire.com/?l9e5k1a43kvccvd
thanks Nihilus!

self-keygen tutorial by synack

previously, i posted a keygen tutorial and challenge, and synack has put his solution forward along with an interesting tutorial on creating a self-keygen, or a keygen that makes use of the original code to do the heavy lifting. it's very clearly written and organized, with plenty of good insight into the thought process as opposed to low-level "click here change this with no idea why" style tutorials.

download the solution and tutorial here: http://www.mediafire.com/?wzc45p269bcpbr5

keygen tutorial and challenge by zAWS!

keygen'ing as a style of cracking requires you to really know and understand how the protection works. it also requires no modification of the original application, so is a very pure way of cracking.

zAWS!, who posted a keygen for lesson 0's crackme0b, sent me this challenge to share:
http://www.mediafire.com/?5ik1659n1k514f9


but before you start, you may want to see his/her keygen tutorial. it comes with the original apk and has videos showing the process:
http://www.mediafire.com/?ckvuiadh5cegl9l