I get the following error if I use an APK file from apkpure.com: <div class="snipp

Original APK file specified is not valid about backdoor-apk HOT 3 CLOSED

dana-at-cp commented on May 23, 2024

Original APK file specified is not valid

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Comments (3)

dana-at-cp commented on May 23, 2024 1

@vincentcox-ordina Please share the run.log file and the original APK file.

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vincentcox-work commented on May 23, 2024

Hi there, Thank you for your response. I have put those files in a zip file:
data.zip
Thanks in advance!

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dana-at-cp commented on May 23, 2024

@vincentcox-ordina Both of the APKs you shared appear to be invalid or otherwise corrupt.

root@kali:~/Downloads# keytool -printcert -jarfile du.apk 
keytool error: java.util.zip.ZipException: error in opening zip file
root@kali:~/Downloads# keytool -printcert -jarfile Tumblr_v7.5.1.00_apkpure.com.apk 
keytool error: java.util.zip.ZipException: error in opening zip file
root@kali:~/Downloads#

The run.log output suggests the du.apk file is invalid as well:

root@kali:~/Downloads# cat run.log 
Running backdoor-apk at Thu Dec 15 19:33:24 CET 2016
/usr/bin/msfvenom
/usr/bin/d2j-dex2jar
/usr/bin/unzip
/usr/bin/keytool
/usr/bin/jarsigner
/usr/bin/apktool
third-party/proguard5.2.1/lib/proguard
third-party/android-sdk-linux/build-tools/23.0.3/dx
third-party/android-sdk-linux/build-tools/23.0.3/zipalign
Archive:  du.apk
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
note:  du.apk may be a plain executable, not an archive
unzip:  cannot find zipfile directory in one of du.apk or
        du.apk.zip, and cannot find du.apk.ZIP, period.
root@kali:~/Downloads#

I'm going to close this issue out. Be mindful of where you obtain APKs. :)

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