Abdellah ASKI abdellahaski
scottyab
/ SignatureCheck.java
Last active
July 20, 2024 02:41
Simple Android signature check. Please note: This was created in 2013, not actively maintained and may not be compatible with the latest Android versions. It's not particularly difficult for an attacker to decompile an .apk, find this tamper check, replace the APP_SIGNATURE with theirs and rebuild (or use method hooking to return true from `vali…
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| import android.content.Context; | |
| import android.content.pm.PackageInfo; | |
| import android.content.pm.PackageManager; | |
| import android.content.pm.PackageManager.NameNotFoundException; | |
| import android.content.pm.Signature; | |
| public class TamperCheck { | |
| //we store the hash of the signture for a little more protection | |
| private static final String APP_SIGNATURE = "1038C0E34658923C4192E61B16846"; |
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| // Google Apps Script for counting emails by sender in batches. Stopps and resumes after 5mins of processing to avoid reaching script runtime limit. | |
| // 1. Allow required permissions | |
| // 2. Add gmail service to project | |
| // 3. Fill <your-email> in `runProcessor` function and adjust query if needed | |
| // 4. Run function `runProcessor` | |
| // 5. Result will be saved in a new spreadsheet | |
| // Based on ideas from https://stackoverflow.com/a/59222719/5162536 and | |
| // https://medium.com/geekculture/bypassing-the-maximum-script-runtime-in-google-apps-script-e510aa9ae6da |