Datasets:
Devilishcode
/
hacking

Dataset card Data Studio Files
xet
 Community
text
stringlengths
0
1.99k
0x0000: cb53 | add-double/2addr v3, v5
0x0001: 1805 182d 4454 fb21 1940 | const-wide v5, \
#+4618760256179416344
0x0006: cf53 | rem-double/2addr v3, v5
0x0007: 1600 0000 | const-wide/fix16 v0, #+0
0x0009: 3002 0300 | cmpg-double v2, v3, v0
0x000b: 3b02 0300 | if-gez v2, +3
0x000d: cb53 | add-double/2addr v3, v5
0x000e: 1003 | return-wide v3
[...]
CODE: (code_offset=0x00953118 size=92)...
0x00953118: d1400bf0 sub x16, sp, #0x2000 (8192)
0x0095311c: b940021f ldr wzr, [x16]
StackMap[0] (native_pc=0x953120, dex_pc=0x0, register_mask=0x0, \
stack_mask=0b)
0x00953120: f81e0fe0 str x0, [sp, #-32]!
0x00953124: f9000ffe str lr, [sp, #24]
0x00953128: fd000be8 str d8, [sp, #16]
0x0095312c: f94002b5 ldr x21, [x21]
StackMap[1] (native_pc=0x953130, dex_pc=0x0, register_mask=0x0, \
stack_mask=0b)
0x00953130: 5c0001e8 ldr d8, pc+60 (addr 0x95316c) (6.28319)
0x00953134: 1e612800 fadd d0, d0, d1
0x00953138: 1e604101 fmov d1, d8
0x0095313c: f9420a7e ldr lr, [tr, #1040] ; pFmod
0x00953140: d63f03c0 blr lr
0x00953144: 1e602008 fcmp d0, #0.0
0x00953148: 1a9f37e0 cset w0, hs
0x0095314c: 1e682801 fadd d1, d0, d8
0x00953150: 7100001f cmp w0, #0x0 (0)
0x00953154: 1e611c00 fcsel d0, d0, d1, ne
0x00953158: fd400be8 ldr d8, [sp, #16]
0x0095315c: f9400ffe ldr lr, [sp, #24]
0x00953160: 910083ff add sp, sp, #0x20 (32)
0x00953164: d65f03c0 ret
0x00953168: 5800007f ldr xzr, pc+12 (addr 0x953174) \
(0xd1400bf00077d5ba / -3368679395845220934)
0x0095316c: 54442d18 unallocated (Unallocated)
0x00953170: 401921fb unallocated (Unallocated)
[...]
```
As you can see, the resulting binary code is the same, modulo offsets.
Simple code-based obfuscations, such as dead code, are eliminated during
the creation of the .odex file. The power of the optimizing compiler
compels thee, binary!
---[ 3.5 - Cool, Anything Else?
*sigh* So why do we need root to access the .odex file? It's because it is
typically compiled based on profiles, and those essentially register usage
patterns.
> Imagine an app containing a method called `buy_drugs_and_do_crime`.
> -- F. K.
If a method ends up in a profile, it means it's been called often enough to
be considered for AOT compilation. And if it's in the profile, then it ends
up in the odex as binary code. Reading the odex would leak the information
which methods are called often, so Android tries to protect it. If you find
a way to read this nevertheless, especially from another app,
congratulations: this might earn you a bounty and/or spying^W information
gathering capabilities.
--[ 4 - A Bit of Putting the Bits together
> YES ... HA HA HA ... YES!
Now that we can create BinExport files from oat files, which contain the
executed machine code of an app's Dalvik code, we can calculate
similarities!
We prepared a couple of applications to demonstrate results. We will use
Organic Maps (app.organicmaps) as a smaller baseline and Signal
(org.thoughtcrime.securesms) as a complex, real-world application. We
prepared the latter in a couple versions: 2.42.2, 2.32.2, 2.22.2, 2.12.2,
and 2.2.4. The oldest version is from Summer 2024, one year ago, and we
chose it because it is the basis for the leaked TeleMessage (TM) SNGL app's
source code. It's an unofficial clone of Signal with added functionality to
save messages centrally and was used by White House staff in early 2025. We
used the source [16] to build a release version and compare it with our
approach to the OG Signal app.
1. org.tm.archive_7.2.4.2.apk
(release build of leaked TM SGNL app)
2. org.thoughtcrime.securesms_7.2.4.apk
(Signal version closest in source code to TM SGNAL app)
3. org.thoughtcrime.securesms_7.12.2.apk
4. org.thoughtcrime.securesms_7.22.2.apk
5. org.thoughtcrime.securesms_7.32.2.apk
6. org.thoughtcrime.securesms_7.42.2.apk
(Different version of Signal)
7. app.organicmaps_25052005_orig.apk
(Organic Maps)
8. app.organicmaps_25052005_obfuscated.apk
(Repackaged using ObfuscAPK's ArithmeticBranch pass)
We downloaded the Organic Maps app from F-Droid and repackaged it
ourselves. The TM SGNL app we built from source in a release configuration
and downloaded the historic Signal versions from apkmirror.com because the