# Android APK Published articles for Android APK. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Kimwolf v7: An Evolution of the Kimwolf Botnet DevFeed: [Kimwolf v7: An Evolution of the Kimwolf Botnet]() Original publisher: [Read original article]() Author: Asher Davila, Chris Navarrete and Doel Santos Published: 2026-08-11T10:00:16Z Content type: article Language: en Sources: [Unit 42]() Topics: [Kimwolf v7](), [Android](), [DDoS](), [Internet of things](), [C2](), [Ethereum Name Service (ENS)](), [Malware](), [Cybercrime](), [Ethereum](), [Blockchain](), [Routing (disambiguation)](), [Threat Hunting & Intel]() Tags: [android](), [android-apk](), [blockchain](), [c2](), [ddos](), [devices](), [ethereum](), [http](), [iot-botnets](), [kimwolf-v7](), [linux](), [malware](), [network](), [networks](), [resilience](), [routing](), [rpc](), [spoofing](), [threat-research]() ### AI overview Kimwolf v7 is an Android and IoT botnet variant that adds HTTP/2-based DDoS flooding with browser fingerprinting, Ethereum Name Service resolution for C2 addresses, and Tor-backed routing to improve infrastructure resilience. The article also describes its targeting of Android TV devices and exploitation of unauthenticated ADB instances. ### Source excerpt Discover how Kimwolf v7 targets Android IoT devices with HTTP/2 DDoS fingerprinting, Ethereum ENS C2 resolution and Tor backup routing. The post Kimwolf v7: An Evolution of the Kimwolf Botnet appeared first on Unit 42. ## PostmarketOS demonstrates Gboard integration for Linux mobile keyboards DevFeed: [PostmarketOS demonstrates Gboard integration for Linux mobile keyboards]() Original publisher: [Read original article]() Published: 2025-04-01T00:00:00Z Content type: tutorial Language: en Sources: [postmarketOS Blog]() Topics: [keyboard](), [Mobile](), [Linux](), [Android APK](), [Software](), [Android]() Tags: [android](), [android-apk](), [apk](), [crash](), [environment](), [focus](), [keyboard](), [linux](), [mobile](), [open-source](), [other](), [postmarketos](), [tensorflow](), [training-data]() ### AI overview PostmarketOS demonstrates an experimental keyboard setup in Phosh using Gboard through ATL. The prototype offers suggestions, swiping, autocorrection, and smart input detection, but it crashes often and will not ship because it relies on proprietary software. ### Source excerpt In our previous blog post 2025 Priorities: Reliability, Audio, Cameras and More, we asked "is there anything that you find terribly important that we have missed here?". And indeed, there was one thing that people would have liked us to focus more on, which is a better keyboard experience. This was unbelievably great timing, because we are actually integrating a new keyboard with the following features: Word complete suggestions Swiping Autocorrection of misspelled words Smart detection of what you meant to type vs. which buttons you have actually hit with your fingers We have hooked it up to Phosh, see it for yourself (this is a video, you might need to click it in order to have it start playing): Tech stack Please note that this is in early development. Currently it is still crashing often and you also need to be comfortable running proprietary software since this is actually Gboard running through ATL. So uh... on second thought we will not be shipping this in postmarketOS. However the underlying technology is very much worth showcasing since it allows running components and apps from that other operating system on proper Linux (Mobile) without running a full container! The video is real, and it shows that it is possible to build features like autocorrection and swiping with the APIs we already have in Linux Mobile today. In fact, phosh-osk-stub and swipeGuess can do most of this already! If somebody out there has the interest, skills and time to improve the Linux mobile keyboards to the point that they work as intuitively as proprietary ones: it is possible, get involved! Try it for yourself If you really want to, you can now run this proprietary piece of TensorFlow based software to tap into the results of training data from millions of Android user's keystrokes while tapping with your fingers on your postmarketOS phone. You can also use these instructions with the open source Hacker's Keyboard. Build ATL from sources: sudo apk add -t .atl-builddeps \ libopensles ## Smaller APKs with resource optimization DevFeed: [Smaller APKs with resource optimization]() Original publisher: [Read original article]() Published: 2020-09-01T00:00:00Z Content type: tutorial Language: en Sources: [Jake Wharton]() Topics: [Optimization](), [Android APK](), [Android Gradle Plugin](), [Gradle]() Tags: [android](), [android-apk](), [android-gradle-plugin](), [apk](), [build](), [gradle](), [optimization](), [release]() ### AI overview This article explains how resource names and paths are stored multiple times in an Android APK and shows how Android Gradle Plugin 4.2 resource optimization can reduce APK size. It uses a minimal Gradle-built app and APK inspection to compare the effects. ### Source excerpt How many times does the name of a layout file appear in an Android APK? We can build a minimal APK with a single layout file to count the occurrences empirically. Building an Android app with Gradle requires only one thing: an AndroidManifest.xml file with a package. From there we can add a dummy layout whose contents are just since we only care about its name. . ├── build.gradle └── src └── main ├── AndroidManifest.xml └── res └── layout └── home_view.xml Running gradle assembleRelease will produce a release APK measuring a paltry 2,118 bytes. We can dump its contents using xxd and look for home_view byte sequences. $ xxd build/outputs/apk/release/app-release-unsigned.apk ⋮ 000004c0: 0000 0074 0000 0018 0000 0072 6573 2f6c ...t.......res/l 000004d0: 6179 6f75 742f 686f 6d65 5f76 6965 772e ayout/home_view. 000004e0: 786d 6c63 66e0 6028 6160 6060 6490 61d0 xmlcf.`(a```d.a. ⋮ 00000570: 0000 0000 0000 0000 1818 7265 732f 6c61 ..........res/la 00000580: 796f 7574 2f68 6f6d 655f 7669 6577 2e78 yout/home_view.x 00000590: 6d6c 0000 0002 2001 f801 0000 7f00 0000 ml.... ......... ⋮ 00000700: 0000 0000 0909 686f 6d65 5f76 6965 7700 ......home_view. 00000710: 0202 1000 1400 0000 0100 0000 0100 0000 ................ ⋮ 00000870: 0000 ad04 0000 7265 732f 6c61 796f 7574 ......res/layout 00000880: 2f68 6f6d 655f 7669 6577 2e78 6d6c 504b /home_view.xmlPK ⋮ There are three uncompressed occurrences of the path and one uncompressed occurrence of only the name in the APK based on this output. If you have not read my post on calculating zip entry size or are not familiar with the structure of a zip file, a zip file is a list of file entries followed by a directory of all available entries. Each entry contains the file path and so does the directory. This accounts for the first occurrence (the entry header) and the last occurrence (the directory record) in the output. The middle two occurrences in the output are from inside the resources.arsc file which is a database of sorts for