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Yiannis Kozyrakis ~ blog. During BlackHat EU 2017, myself and Collin Mulliner presented on Android SafetyNet Attestation.The presentation covered what SafetyNet is, why would Android developers use attestation, some of the checks it does and certain weaknesses it currently has.
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Inside Android's SafetyNet Attestation - BlackHatEU17 slides
During BlackHat EU 2017, myself and Collin Mulliner presented on Android SafetyNet Attestation. The presentation covered what SafetyNet is, why would Android developers use attestation, some of the checks it does and certain weaknesses it currently has. I
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Mobile OS version adoption
While trying to understand adoption patterns of new mobile OS versions, I decided to plot data from the Android Dashboard and Apple's pie-chart, with help from the Wayback Machine. I'll try to keep the charts updated going forwards. Feel free to hover; th
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Library injection for debuggable Android apps
TLDR: released a script which can be used to inject native libraries like Frida into debuggable Android apps on non-rooted devices. As discussed on a previous blogpost, security testers can use Frida to review the internals of Android apps on non-rooted A
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Using Frida on Android without root
Frida is a great toolkit by @oleavr, used to build tools for dynamic instrumentation of apps in userspace. It is often used, like Substrate, Xposed and similar frameworks, during security reviews of mobile applications. Typically rooted Android devices ar
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Pinning - not as simple as it sounds
Two weeks ago I presented (once more) on the topic of pinning, this time focusing on bugs seen in real-world Android applications implementing pinning. The presentation also covered CVE-2016-2402 in some detail, Android's Network Security Configuration an
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