Just Another IT Security Blog

Over the course of my INFOSEC career I've worked in many different positions. IDS, network analysis, pentester, mobile application testing and a few others but one area has always stoked my interest. Vulnerability development is an area I wish I knew more about along with having a better grasp of reversing software. So over the next few months I've decided to try and fuel that interest by jumping into the world of fuzzing. I have chosen to start messing around with american fuzzy lop (AFL)  and see if I can find my first CVE. So here goes nothing.

It's been a few months since my last post and I thought that a post about what items might be considered suspicious in an APK would be good to have. There is only two main items that I can think of but should provide a researcher with an idea of when they might need to reverse an application to figure out exactly what it is doing. Permissions In order for applications to access certain features of an Android device they must request access to the corresponding permissions for that feature. Such as, if an application wants to send SMS it must request access to that feature. This is usually done on install. When you choose to install a new application the user has to grant or deny access. This is the only time a user is prompted to allow access as the application will not request permissions when running. This can be dangerous if you allow access to an application and do not know what it is actually requesting access to. Permissions are a good place to start with when trying to ...