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carlospolop merged 2 commits into from
Oct 24, 2026
Merged

YuanKong RAT The Android Remote-Control Service That Stamps ... #3187

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Add content from: YuanKong RAT: The Android Remote-Control Service Th…
Oct 24, 2026
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docs: repair PR placement and formatting after editorial review
carlospolop Oct 24, 2026
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3 changes: 3 additions & 0 deletions src/mobile-pentesting/android-app-pentesting/manual-deobfuscation.md
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Expand Up @@ -162,6 +162,8 @@ unzip -t stage2.bin
apksigner verify --verbose --print-certs stage2.bin
```

Before reversing a loader, check whether an adjacent asset manifest already names the opaque blob and supplies its key, IV, expected hash, and payload path. When the blob also carries an IV in its header, compare it with the manifest before decoding offline. If the plaintext is a ZIP containing the child APK, compare the manifest hash with the **extracted APK**, not the ZIP wrapper, and inspect the child's signer separately from the loader's.<sup>[[14]](#references)</sup>

#### Reconstruct DPT-Shell method bodies

DPT-Shell hollows DEX method implementations and reconstructs them at runtime.<sup>[[10]](#references)</sup> Strong fingerprints are a small `ProxyApplication`/`JniBridge` stub, `assets/OoooooOooo`, and a native loader below `assets/vwwwwwvwww/` for each ABI.<sup>[[10]](#references)[[11]](#references)</sup> Repair deceptive DEX table offsets **before** resolving method indexes; otherwise valid code-store records will be mapped to the wrong methods.<sup>[[11]](#references)</sup>
Expand Down Expand Up @@ -267,4 +269,5 @@ After decrypting a staged container:
- [11] [78 Victims, One Lazy Key, and a Firebase Named After India’s Ruling Party](https://medium.com/@singhbkn07/78-victims-one-lazy-key-and-a-firebase-named-after-indias-ruling-party-62cf0ad0380e)
- [12] [Unpacking the Unpackable: Malformed APKs as an Anti-Analysis Technique](https://www.cleafy.com/cleafy-labs/malformed-apks-as-an-anti-analysis-technique-malfixer-tool)
- [13] [MalFixer: Inspecting and recovering malformed Android APK files](https://github.com/Cleafy/Malfixer)
- [14] [YuanKong RAT: The Android Remote-Control Service That Stamps Operator Names into Every Build](https://starlabs.sg/blog/2026/10-yuankong-rat-the-android-remote-control-service-that-stamps-its-operators-names-into-every-build)
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