11:51 a.m.
Hi Michael,
*sigh* When will I learn to check the origin of my samples?!
The guy who provided me with the sample tells me that he took a snapshot of
a VMWare machine and then used vss2core to convert it. I BELIEVE that makes
it into a Windows Memory Core Dump..?
I got hold of the original vmem and vmsn files. Trying to use imagecopy on
the vmsn just replicated the input file.
I think the header is not what Volatility would expect:
$ xxd Windows\ XP\ Pro\ SP2\ \(32-bit\)-Snapshot49.vmsn |head
0000000: d2be d2be 0800 0000 6300 0000 4368 6563 ........c...Chec
0000010: 6b70 6f69 6e74 0000 0000 0000 0000 0000 kpoint..........
0000020: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0000030: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0000040: 0000 0000 0000 0000 0000 0000 fc1e 0000 ................
0000050: 0000 0000 ab03 0000 0000 0000 4775 6573 ............Gues
0000060: 7456 6172 7300 0000 0000 0000 0000 0000 tVars...........
0000070: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0000080: 0000 0000 0000 0000 0000 0000 0000 0000 ................
0000090: 0000 0000 0000 0000 0000 0000 a722 0000 ............."..
Does that mean I can't use this with Volatility?
Thank you,
Adam
On 23 March 2015 at 14:57, Michael Ligh <michael.ligh(a)mnin.org> wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Hey Adam,
We forgot to ask if the sample was a raw memory dump. For example:
$ xxd ~/Desktop/memory.dmp | less
0000000: 5041 4745 4455 4d50 0f00 0000 280a 0000 PAGEDUMP....(...
0000010: 8001 6c07 00c0 e680 a031 5580 5892 5580 ..l......1U.X.U.
0000020: 4c01 0000 0100 0000 8000 0000 5444 4f00 L...........TDO.
0000030: 0000 0000 0000 0000 0000 0000 5041 4745 ............PAGE
0000040: 5041 4745 5041 4745 5041 4745 5041 4745 PAGEPAGEPAGEPAGE
If its something like a crash dump, hibernation, etc then the file
format headers throw off the offsets. You can convert those special
file types into a raw memory dump with the imagecopy plugin and then
your strings translations should be accurate.
Cheers!
MHL
On 3/23/15 8:54 AM, Bridgey theGeek wrote:
Hi Andrew,
I was certain I was running the latest version, but just to be sure
I grabbed the latest version. Same result, same offsets.
I can make the sample available, but more than happy to do
whatever debugging needs doing (if I can!)
Adam
On 23 March 2015 at 13:03, Andrew Case <atcuno(a)gmail.com
<mailto:atcuno@gmail.com>> wrote:
Are you using the latest git checkout of Volatility or the 2.4
release? Can you try the latest checkout and re-run Volatility
strings (you can run it on just the offsets from PID 123 to make it
faster).
If you are already on the latest checkout then we will need to
debug further.
Thanks, Andrew (@attrc)
On 03/23/2015 04:38 AM, Bridgey theGeek wrote:
************************************************************************
-----BEGIN PGP SIGNATURE-----
Version: GnuPG/MacGPG2 v2.0.22 (Darwin)
Comment: GPGTools - https://gpgtools.org
iF4EAREKAAYFAlUQKcQACgkQXnt9v1O0LIuwSwEAhKUK1clPJ5l8ujiKwRHfOO3M
Hzw2CpeyvY7XCCoHViAA/1D+gc/0ZWL5TNSQEi5FkwKq4TIlfEaWk0nrH0/loplk
=cA1W
-----END PGP SIGNATURE-----
Thanks Andrew:
python vol.py --profile=WinXPSP2x86 -f memory.dmp volshell -p
123 Volatility Foundation Volatility Framework 2.4 Current
context: myapp.exe @ 0x822042f8, pid=123, ppid=392
DTB=0x76c0040
Welcome to volshell! Current memory image is:
file:///home/memory.dmp To get help, type 'hh()'
0x1a34d8 in
>> db(0x75b6b4d8)
0x75b6b4d8 c3 7c
15 c7 85 00 ff ff ff 01 00 00 00 75 09 8d
.|...........u.. 0x75b6b4e8 85 0c ff ff ff 50 ff 17 39 9d 00 ff
ff ff 89 85 .....P..9....... 0x75b6b4f8 30 ff ff ff 74 12 6a 0c
8d 85 c4 fe ff ff 50 6a 0...t.j.......Pj 0x75b6b508 07 6a fe e8
ea 92 ff ff 83 bd 28 ff ff ff 0c 0f .j........(..... 0x75b6b518
84 8c 59 00 00 e9 18 ff ff ff 90 90 47 00 6c 00 ..Y.........G.l.
0x75b6b528 6f 00 62 00 61 00 6c 00 5c 00 54 00 65 00 72 00
o.b.a.l.\.T.e.r. 0x75b6b538 6d 00 53 00 72 00 76 00 52 00 65 00
61 00 64 00 m.S.r.v.R.e.a.d. 0x75b6b548 79 00 45 00 76 00 65 00
6e 00 74 00 00 00 90 90 y.E.v.e.n.t.....
Nope, still no banner. But it is identical to what I find at 123.dmp. (As you'd expect.) Double-checked
that I was searching
Unicode and ASCII - still no luck.
Hmmm.
Adam
On 23 March 2015 at 04:02, Andrew Case <atcuno(a)gmail.com
<mailto:atcuno@gmail.com>
<mailto:atcuno@gmail.com
<mailto:atcuno@gmail.com>>> wrote:
Can do you:
vol.py ... volshell -p 123
Then in volshell do:
db(0x75b6b4d8)
And see if you get the banner printed at the beginning?
Also, how are you searching 123.dmp? Did you search ascii &
unicode
(most common error)
Thanks, Andrew (@attrc)
On 03/20/2015 03:59 PM, Bridgey theGeek wrote:
(memory.dmp).
Hi all,
I can't quite see what's wrong with my logic here, but I must
be
missing
> something. Hoping someone can help me out.
>
> I'm looking for a private key in a memory sample
> (WinXPSP2x86). Specifically, to find out which process/es
> is/are accessing it.
>
> I can find the key by searching the raw memory dump > As you might expect it's between:
-----BEGIN RSA PRIVATE
> KEY----- -----END RSA PRIVATE KEY-----
>
> I generated an offset:string file by using strings. Then, using
> the strings plugin I get this output: $ python vol.py -f
> memory.dmp --profile=WinXPSP2x86 strings
-s pk.txt
> Volatility Foundation Volatility Framework
2.4 188435934 [FREE
> MEMORY:-1] -----BEGIN RSA PRIVATE KEY----- 188435968 [FREE
> MEMORY:-1] -----END RSA PRIVATE KEY----- 317375704
> [kernel:d2ab24d8] -----BEGIN RSA PRIVATE KEY----- 317376575
> [kernel:d2ab283f] -----END RSA PRIVATE KEY----- 417203416
> [123:75b6b4d8] -----BEGIN RSA PRIVATE KEY----- 417204287
> [123:75b6b83f] -----END RSA PRIVATE KEY----- 419888606 [FREE
> MEMORY:-1] -----BEGIN RSA PRIVATE KEY----- 419888640 [FREE
> MEMORY:-1] -----END RSA PRIVATE KEY-----
>
> Lovely. So I now do a memdump of process 123: $ python vol.py
> -f memory.dmp --profile=WinXPSP2x86 memdump
--pid=123
--dump-dir=123 Volatility Foundation Volatility Framework 2.4
Writing myapp.exe [ 123] to 123.dmp
>
> However, if I search 123.dmp neither the BEGIN or END
strings are
present.
--pid=123
So I thought I'd try and find it via the virtual address give,
0x75b6b4d8:
> $ python vol.py -f memory.dmp --profile=WinXPSP2x86 memmap > Virtual Physical Size
DumpFileOffset ----------
> ---------- ---------- -------------- --SNIP-- 0x75b6b000
> 0x18de0000 0x1000 0x1a3000 --SNIP--
>
> The text is indeed at 0x18de04d8 in memory.dmp, but not at
0x1a34d8 in
> 123.dmp. Again, it's no where to be found
in 123.dmp.
>
> Any suggestions..??
>
> Many thanks, Adam
>
>
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