Re: [Vol-users] Sample error or real module? (and other questions)

On 5/14/15 4:31 PM, Gregory Pendergast wrote: Just as a follow up to my last reply, the shimcache plugin reported that there was no shimcache data, and the timeliner plugin didn't reveal anything apparently interesting except IE history related to the download. Thanks, Greg On May 14, 2015, at 12:35 PM, Jared Greenhill &lt;jared703(a)gmail.com <mailto:jared703@gmail.com>> wrote: Hi Geoff, The key to get strings working is to make sure you have a raw One discrepancy I see with your logic is regarding this line: memory_dump.ram.vol.strings:183190042 [3156:0189321a] It tells you the search string is at virtual address 0189321a in Try using the memdump or vaddump plugins on 3156 instead. That MHL >>>> On 5/7/15 3:03 PM, Torres, Geoff (Cyber Security) wrote: >>>> Hi, >>>>>>> Sorry for the 'me too' response, but I'm having this exact >>>> same problem. However, the main difference is that I'm >>>> using a 'QEMU' memory image (Hex dump sig is QEVM in the >>>> first 4 bytes) from a >> cloud >>>> instance. >>>>>>> I've converted these in the past using the 'lqs2mem' tool >> written by >>>> Juerg Haefliger and Andrew Tappert and it's worked >>>> perfectly >> for the >>>> 'netscan' and 'ps' type plugins. However, I haven't needed >>>> to dump processes before and look for specific strings. I >>>> can locate the strings in the converted image, but it's not >>>> translating to the processes that are identified by the >>>> 'strings' plugin. >>>>>>>>>> Here's the steps I've been taking - >>>>>>> ## Memory dump info >>>>> ll memory_dump >>>> -rw------- 1 geoff citsirt 7579914273 Apr 27 13:36 >>>> memory_dump >>>>>>>> file memory_dump >>>> memory_dump: QEMU suspend to disk image >>>>>>>> xxd memory_dump | head -n1 >>>> 0000000: 5145 564d 0000 0003 0100 0000 0105 626c >>>> QEVM..........bl >>>>>>>>>> ## Convert the dump >>>>> lqs2mem -w pc.ram memory_dump memory_dump.ram >>>> section = pc.ram size = 8192 >>>> [MB] 8589934592 [bytes] section = pc.bios >>>> size = 128 [KB] 131072 [bytes] section = pc.rom >>>> size = 128 [KB] 131072 [bytes] section = vga.vram >>>> size = 16 [MB] 16777216 [bytes] section = >>>> 0000:00:02.0/cirrus_vga.rom size = 64 [KB] >>>> 65536 [bytes] Wrote 8589934592 bytes from section 'pc.ram' >>>> to file memory_dump.ram >>>>>>>>>> ## Create the strings file >>>>> strings -a -t d memory_dump.ram >>>>> memory_dump.ram.strings >>>>>>>> strings -a -t d -el memory_dump.ram >>>>>> memory_dump.ram.strings >>>>>>>>>> ## Create the volatility strings file >>>>> python >>>>> /data/download/apps/forensic_tools/volatility/vol.py -f >>>>> memory_dump.ram --profile=Win2008SP2x64 strings -s >>>>> --output-file=memory_dump.ram.vol.strings >>>>>>>>>>> ll memory_dump.ram.strings memory_dump.ram.vol.strings >>>> -rw-rw-r-- 1 geoff citsirt 2914258187 May 7 08:58 >>>> memory_dump.ram.strings -rw-rw-r-- 1 geoff citsirt >>>> 4292775089 May 7 12:17 memory_dump.ram.vol.strings >>>>>>>>>> ## '<Search_String>' is found in both string files as >>>> expected >>>>> fgrep <Search_String> memory_dump.ram.strings >>>>> memory_dump.ram.vol.strings >>>> memory_dump.ram.strings:183190042 <Search_String>>>> memory_dump.ram.vol.strings:183190042 [3156:0189321a] >>>>>>>>>> ## Dump process 3156 as identified by volatility >>>>> python >>>>> /data/download/apps/forensic_tools/volatility/vol.py -f >>>>> memory_dump.ram --profile=Win2008SP2x64 procdump -p 3156 >>>>> -D processes -m >>>> Volatility Foundation Volatility Framework 2.4 Process(V) >>>> ImageBase Name Result >>>> ------------------ ------------------ -------------------- >>>> ------ 0xfffffa800a4e6370 0x0000000000400000 iwproxy.exe >>>> OK: executable.3156.exe >>>>>>>> ll processes/executable.3156.exe >>>> -rw-rw-r-- 1 geoff citsirt 3248128 May 7 12:35 >>>> processes/executable.3156.exe >>>>>>>>>> ## '<Search_String>' not found in the dumped executable >>>>> strings -a processes/executable.3156.exe | fgrep >>>>> <Search_String> strings -a -el >>>>> processes/executable.3156.exe | fgrep <Search_String>>>>>>>>>> I've tried many different variations of the above steps and >>>> all have the same results. >>>>>>> According to what I've read in this thread is that the >>>> issue is to make sure the original dump is properly >>>> converted. How can I do that? 'lqs2mem' has limited >>>> options. >>>>>>> Any ideas on what I can do differently to get this to >>>> work? >>>>>>> Thanks, >>>>>>> Geoff >>>>>>> Don't be afraid to tell me I'm doing something stupid... >>>> :-) >>>>>>>>>> -----Original Message----- From: >>>> vol-users-bounces(a)volatilityfoundation.org >> <mailto:vol-users-bounces@volatilityfoundation.org>>>> [mailto:vol-users-bounces@volatilityfoundation.org >> <mailto:vol-users-bounces@volatilityfoundation.org>] On Behalf Of >> Michael >>>> Ligh Sent: Tuesday, March 24, 2015 6:49 AM To: Bridgey >>>> theGeek Cc: vol-users(a)volatilityfoundation.org >> <mailto:vol-users@volatilityfoundation.org> Subject: Re: >> [Vol-users] Output of >>>> strings not found in memdump output >>>>>>> Perfect! Glad to hear all is good in the world ;-) >>>>>>> MHL >>>>>>>> On 3/24/15 5:05 AM, Bridgey theGeek wrote: Awesome, >>>>> thanks Michael. >>>>>>>> I generated a raw dump as follows, with the vmsn and vmem >>>>> files in the same folder: $ python vol.py -f winxp.vmem >>>>> --profile=WinXPSP2x86 imagecopy -O winxp.raw >>>>>>>> Then ran strings again (having generated a new input text >>>>> file because of course the offsets will be different): $ >>>>> python vol.py -f winxp.raw --profile=WinXPSP2x86 strings >>>>> -s pk.txt >>>>>>>> I was then able to find the banner at the offsets >>>>> reported by strings. And all was good in the world. >>>>>>>> Thank you very much for the support. >>>>>>>> Adam >>>>>>>> On 23 March 2015 at 19:39, Michael Ligh >>>>> &lt;michael.ligh(a)mnin.org >> <mailto:michael.ligh@mnin.org>>>>> <mailto:michael.ligh@mnin.org >>>>> <mailto:michael.ligh@mnin.org>>>> wrote: >>>>>>>> Hey Adam, >>>>>>>> A few things: >>>>>>>> * Yes, vmss2core creates a windows crash dump * You can >>>>> use volatility on the original vmem/vmss by doing the >>>>> following: >>>>>>>> * make sure both vmem and vmss files are in the same dir >>>>> * make sure they have the same base name (i.e. test.vmem >>>>> and test.vmss) * run your volatility plugins against the >>>>> vmem >>>>>>>> In this case, it would also be required to generate a raw >>>>> memory dump before running strings. So you would use >>>>> imagecopy on the vmem. >>>>>>>> LMK if that helps! Michael >>>>>>>>> On 3/23/15 10:51 AM, Bridgey theGeek wrote: 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 >> &lt;michael.ligh(a)mnin.org <mailto:michael.ligh@mnin.org>>>>>> <mailto:michael.ligh@mnin.org >>>>>> <mailto:michael.ligh@mnin.org>>> <mailto:michael.ligh@mnin.org <mailto:michael.ligh@mnin.org>>>>>> <mailto:michael.ligh@mnin.org >> <mailto:michael.ligh@mnin.org>>>> wrote: >>>>>>>>> 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 >>>>>>> &lt;atcuno(a)gmail.com >> <mailto:atcuno@gmail.com>>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>> <mailto:atcuno@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: >>>>>>>> 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()' >>>>>>>>>>> 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 >>>>>>> 0x1a34d8 in >>>>>>>> 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 >>>>>>>> &lt;atcuno(a)gmail.com >> <mailto:atcuno@gmail.com>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>>>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>> <mailto:atcuno@gmail.com <mailto:atcuno@gmail.com>>>>>> <mailto:atcuno@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: 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 >>>>>>> (memory.dmp). >>>>>>>>> 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 >>>>>>>> ********************************************************************