How can my Android application scan its own memory map for known bad keywords such as “Xposed” or...
An app I am working on at work was recently pen tested. One of the risks that came back in the report was that it has no proper Hook detection. I had implemented the RootBeer library but that was easily avoided.
A Frida script was created by the tester for the Android application to modify the root detection logic at run time. The script hooked into the System.exit method to return false instead of true. This prevented the application from exiting after the application detected that the device has been rooted.
It was recommended by the pen testers that we implement as many different checks as possible in order to deter reverse engineers.
One of those checks is to get the Android application to scan its own memory map file located at
/proc/<pid>/maps
where
<pid>
is the app’s process ID (PID).
I have checked the Android docs and can only find info on handling memory but nothing on scanning the memory. eg. https://developer.android.com/topic/performance/memory
I see you can "get a MemoryInfo object for the device's current memory status". But this only shows the available memory on the system.
Does anyone have a solution to this problem?
android memory detection xposed frida asked Nov 12 at 8:44
Shannon
112
add a comment |
An app I am working on at work was recently pen tested. One of the risks that came back in the report was that it has no proper Hook detection. I had implemented the RootBeer library but that was easily avoided.
A Frida script was created by the tester for the Android application to modify the root detection logic at run time. The script hooked into the System.exit method to return false instead of true. This prevented the application from exiting after the application detected that the device has been rooted.
It was recommended by the pen testers that we implement as many different checks as possible in order to deter reverse engineers.
One of those checks is to get the Android application to scan its own memory map file located at
/proc/<pid>/maps
where
<pid>
is the app’s process ID (PID).
I have checked the Android docs and can only find info on handling memory but nothing on scanning the memory. eg. https://developer.android.com/topic/performance/memory
I see you can "get a MemoryInfo object for the device's current memory status". But this only shows the available memory on the system.
Does anyone have a solution to this problem?
android memory detection xposed frida asked Nov 12 at 8:44
Shannon
112
add a comment |
An app I am working on at work was recently pen tested. One of the risks that came back in the report was that it has no proper Hook detection. I had implemented the RootBeer library but that was easily avoided.
A Frida script was created by the tester for the Android application to modify the root detection logic at run time. The script hooked into the System.exit method to return false instead of true. This prevented the application from exiting after the application detected that the device has been rooted.
It was recommended by the pen testers that we implement as many different checks as possible in order to deter reverse engineers.
One of those checks is to get the Android application to scan its own memory map file located at
/proc/<pid>/maps
where
<pid>
is the app’s process ID (PID).
I have checked the Android docs and can only find info on handling memory but nothing on scanning the memory. eg. https://developer.android.com/topic/performance/memory
I see you can "get a MemoryInfo object for the device's current memory status". But this only shows the available memory on the system.
Does anyone have a solution to this problem?
android memory detection xposed frida asked Nov 12 at 8:44
Shannon
112
An app I am working on at work was recently pen tested. One of the risks that came back in the report was that it has no proper Hook detection. I had implemented the RootBeer library but that was easily avoided.
A Frida script was created by the tester for the Android application to modify the root detection logic at run time. The script hooked into the System.exit method to return false instead of true. This prevented the application from exiting after the application detected that the device has been rooted.
It was recommended by the pen testers that we implement as many different checks as possible in order to deter reverse engineers.
One of those checks is to get the Android application to scan its own memory map file located at
/proc/<pid>/maps
where
<pid>
is the app’s process ID (PID).
I have checked the Android docs and can only find info on handling memory but nothing on scanning the memory. eg. https://developer.android.com/topic/performance/memory
I see you can "get a MemoryInfo object for the device's current memory status". But this only shows the available memory on the system.
Does anyone have a solution to this problem?
android memory detection xposed frida android memory detection xposed frida asked Nov 12 at 8:44
Shannon
112
asked Nov 12 at 8:44
Shannon
112
asked Nov 12 at 8:44
Shannon
112
asked Nov 12 at 8:44
Shannon
112
asked Nov 12 at 8:44
Shannon
112
112
add a comment |
add a comment |
1 Answer
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I found the answer here:
The Jiu-Jitsu of Detecting Frida
According to the site"
"This article is part of the Mobile Reverse Engineering Unleashed series."
You have to include native code in your Android project.
You can do that here:
Add C and C++ code to Your project
I haven't tested this yet and will update this answer when I have.
answered Nov 13 at 12:09
Shannon
112
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I found the answer here:
The Jiu-Jitsu of Detecting Frida
According to the site"
"This article is part of the Mobile Reverse Engineering Unleashed series."
You have to include native code in your Android project.
You can do that here:
Add C and C++ code to Your project
I haven't tested this yet and will update this answer when I have.
answered Nov 13 at 12:09
Shannon
112
add a comment |
I found the answer here:
The Jiu-Jitsu of Detecting Frida
According to the site"
"This article is part of the Mobile Reverse Engineering Unleashed series."
You have to include native code in your Android project.
You can do that here:
Add C and C++ code to Your project
I haven't tested this yet and will update this answer when I have.
answered Nov 13 at 12:09
Shannon
112
add a comment |
I found the answer here:
The Jiu-Jitsu of Detecting Frida
According to the site"
"This article is part of the Mobile Reverse Engineering Unleashed series."
You have to include native code in your Android project.
You can do that here:
Add C and C++ code to Your project
I haven't tested this yet and will update this answer when I have.
answered Nov 13 at 12:09
Shannon
112
I found the answer here:
The Jiu-Jitsu of Detecting Frida
According to the site"
"This article is part of the Mobile Reverse Engineering Unleashed series."
You have to include native code in your Android project.
You can do that here:
Add C and C++ code to Your project
I haven't tested this yet and will update this answer when I have.
answered Nov 13 at 12:09
Shannon
112
answered Nov 13 at 12:09
Shannon
112
answered Nov 13 at 12:09
Shannon
112
answered Nov 13 at 12:09
Shannon
112
112
add a comment |
add a comment |
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