Is there a way to perform a memdump of an android device?

Question

Is there a way to perform a memdump of an android device? I need the content of the entire memory (RAM). Maybe there is a shell command (meminfo will not do because it displays only memory information, not the content of RAM) or maybe somebody has a program which does this.

I want to see if there is a pattern in the free memory space — Marius, Jun 27 '12 at 17:52

score 6 · Accepted Answer · answered Jun 27 '12 at 13:00

6

Since Android uses Linux as kernel /dev/kmem exists. It's a virtual character device file that is an image of the main memory of the computer. You can simply dump it with

cat /dev/kmem > file

but only as root.

answered Jun 27 '12 at 13:00

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thanks, this is what I wanted, also there is a physical memory file (/dev/mem) I will look to see what is the difference, but now I know where to look at. – Marius Jun 28 '12 at 16:58
cat for any mem device never work. Because cat read device sequentially and zero page never mapped in memory. Zero page must be not mapped for get SIGSEG (Segmenataion fault) on resolve null pointer. Then cat failed read and output file will be empty. – Enyby Mar 26 '17 at 12:47

score 1 · Answer 2 · answered Mar 25 '17 at 04:55

You can use GameGuardian for this. Need root.

Memory editor tab - menu - memory dump - select range and folder - press ok - wait for toast "Dump end".

Here some video examples how to do this:

Is there a way to perform a memdump of an android device?

2 Answers2