xworm | 3ee2fd48810d44c52854df63b99be9b5e4ef60efc70852b2e1672700f9a3c5a0

General

Target

2024-01-10-18-19-14.exe
Size

79KB
MD5

0a2db837a415837ff64d570e9248f079
SHA1

10752d7b2a8f997ef1cfa73ad3675bb54600b18a
SHA256

3ee2fd48810d44c52854df63b99be9b5e4ef60efc70852b2e1672700f9a3c5a0
SHA512

dbc46cae96b51c64315446b369552a41006b96a53a8b56bde9bf262ad9ec93958b4485b67c85fee0b93c60d8cc9b83b850a4c8b618f6077f5ee1605cebc07523
SSDEEP

1536:Au+JxE8lRyMiOTHXe99l4BlRB2LsjT0YQNhKcQIoO9gkMtdt0hFJ:APV3ex2yMA7vxQIoOradU

Score

10^/10

xworm defense_evasion discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

trip-thesaurus.gl.at.ply.gg:16715

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0009000000029eea-4.dat	family_xworm
behavioral2/memory/1388-12-0x0000000000010000-0x0000000000028000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1808	powershell.exe
3824	powershell.exe
2756	powershell.exe
3952	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityHealthSystray.lnk	2024-01-10-18-19-14.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SecurityHealthSystray.lnk	2024-01-10-18-19-14.exe

Executes dropped EXE 3 IoCs

pid	Process
1388	2024-01-10-18-19-14.exe
1096	SecurityHealthSystray
3152	SecurityHealthSystray

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4248760313-3670024077-2384670640-1000\Software\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\Users\\Admin\\AppData\\Roaming\\SecurityHealthSystray"	2024-01-10-18-19-14.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	ip-api.com

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-01-10-18-19-14.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "65"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5048	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1388	2024-01-10-18-19-14.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1996	powershell.exe
1996	powershell.exe
1808	powershell.exe
1808	powershell.exe
3824	powershell.exe
3824	powershell.exe
2756	powershell.exe
2756	powershell.exe
3952	powershell.exe
3952	powershell.exe
1388	2024-01-10-18-19-14.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	1388	2024-01-10-18-19-14.exe
Token: SeDebugPrivilege	1996	powershell.exe
Token: SeDebugPrivilege	1808	powershell.exe
Token: SeDebugPrivilege	3824	powershell.exe
Token: SeDebugPrivilege	2756	powershell.exe
Token: SeDebugPrivilege	3952	powershell.exe
Token: SeDebugPrivilege	1388	2024-01-10-18-19-14.exe
Token: SeDebugPrivilege	1096	SecurityHealthSystray
Token: SeDebugPrivilege	3152	SecurityHealthSystray
Token: SeShutdownPrivilege	396	shutdown.exe
Token: SeRemoteShutdownPrivilege	396	shutdown.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1388	2024-01-10-18-19-14.exe
704	LogonUI.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3848 wrote to memory of 1996	3848	2024-01-10-18-19-14.exe	78
PID 3848 wrote to memory of 1996	3848	2024-01-10-18-19-14.exe	78
PID 3848 wrote to memory of 1996	3848	2024-01-10-18-19-14.exe	78
PID 3848 wrote to memory of 1388	3848	2024-01-10-18-19-14.exe	80
PID 3848 wrote to memory of 1388	3848	2024-01-10-18-19-14.exe	80
PID 1388 wrote to memory of 1808	1388	2024-01-10-18-19-14.exe	82
PID 1388 wrote to memory of 1808	1388	2024-01-10-18-19-14.exe	82
PID 1388 wrote to memory of 3824	1388	2024-01-10-18-19-14.exe	84
PID 1388 wrote to memory of 3824	1388	2024-01-10-18-19-14.exe	84
PID 1388 wrote to memory of 2756	1388	2024-01-10-18-19-14.exe	86
PID 1388 wrote to memory of 2756	1388	2024-01-10-18-19-14.exe	86
PID 1388 wrote to memory of 3952	1388	2024-01-10-18-19-14.exe	88
PID 1388 wrote to memory of 3952	1388	2024-01-10-18-19-14.exe	88
PID 1388 wrote to memory of 5048	1388	2024-01-10-18-19-14.exe	90
PID 1388 wrote to memory of 5048	1388	2024-01-10-18-19-14.exe	90
PID 1388 wrote to memory of 396	1388	2024-01-10-18-19-14.exe	94
PID 1388 wrote to memory of 396	1388	2024-01-10-18-19-14.exe	94

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\2024-01-10-18-19-14.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10-18-19-14.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3848
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHIAbAB6ACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGoAawBlACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGwAYwBuACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHMAdABhACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1996
- C:\Users\Admin\AppData\Roaming\2024-01-10-18-19-14.exe
  "C:\Users\Admin\AppData\Roaming\2024-01-10-18-19-14.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1388
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\2024-01-10-18-19-14.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1808
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '2024-01-10-18-19-14.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3824
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\SecurityHealthSystray'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2756
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SecurityHealthSystray'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3952
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SecurityHealthSystray" /tr "C:\Users\Admin\AppData\Roaming\SecurityHealthSystray"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:5048
- - C:\Windows\SYSTEM32\shutdown.exe
    shutdown.exe /f /s /t 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:396

C:\Users\Admin\AppData\Roaming\SecurityHealthSystray
C:\Users\Admin\AppData\Roaming\SecurityHealthSystray
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1096

C:\Users\Admin\AppData\Roaming\SecurityHealthSystray
C:\Users\Admin\AppData\Roaming\SecurityHealthSystray
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3152

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a15055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\SecurityHealthSystray.log

Filesize
654B

MD5
2cbbb74b7da1f720b48ed31085cbd5b8

SHA1
79caa9a3ea8abe1b9c4326c3633da64a5f724964

SHA256
e31b18f21621d9983bfdf1ea3e53884a9d58b8ffd79e0e5790da6f3a81a8b9d3

SHA512
ecf02d5240e0c1c005d3ab393aa7eff62bd498c2db5905157e2bf6d29e1b663228a9583950842629d1a4caef404c8941a0c7799b1a3bd1eb890a09fdb7efcff9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
9d17e8585400bc639a8b261083920ec3

SHA1
aef71cce477bd67115a4e2a0a86e6b8f0f62e30a

SHA256
81fa386fa9b3d185839bec826c3f8cc422e1f329792b901d61be826d42a57fc1

SHA512
235c6644c1349c77f2805c400fd1091a8775b7e63a2ba2e360418faaeb8b696da13ea7bb33a2d92b35f3fafd30fa6945c2398fba7bba39cf5f037a7d900878d5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
4a7f03a7ad1cae046d8ceac04256e5ae

SHA1
ef0bf767c91cba32b33c0b48f74f5eb153ae43d3

SHA256
e8aa3162f519e3670b0fc79dfbeeca68ea2b65a17900cf3aafc6a48de3296d60

SHA512
382a91848be121734bce9f533bcb4747e5f21db5b1ea5dfc8cc567005f5be0f1dcc73a55516b83feb931cdc90601ed4d36fb890687f08e1056ff98da2365f01d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cvvhgukq.nfs.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\2024-01-10-18-19-14.exe

Filesize
74KB

MD5
9fd737e642e488c941cb3cfa205bf0b2

SHA1
53c1d11e884a4eb76a402111447e7659292a2813

SHA256
e5172d5f750acb734d00f632d68ac1542444625307f7d5abd519810943f8af2f

SHA512
ee6d98f5760fe357515b89fa6a44d8635f4cd3a6f3cd14ea9bc9a03a479da45f0410c182c7159356bab3f42a6afdac58c018bb483de4774fa004b1b7e6370e08

Download Submit
memory/1388-112-0x000000001AC60000-0x000000001AC6C000-memory.dmp

Filesize
48KB

Download
memory/1388-107-0x000000001ADF0000-0x000000001AE00000-memory.dmp

Filesize
64KB

Download
memory/1388-103-0x00007FFFC1473000-0x00007FFFC1475000-memory.dmp

Filesize
8KB

Download
memory/1388-12-0x0000000000010000-0x0000000000028000-memory.dmp

Filesize
96KB

Download
memory/1388-11-0x00007FFFC1473000-0x00007FFFC1475000-memory.dmp

Filesize
8KB

Download
memory/1388-50-0x000000001ADF0000-0x000000001AE00000-memory.dmp

Filesize
64KB

Download
memory/1808-64-0x00000276BD110000-0x00000276BD132000-memory.dmp

Filesize
136KB

Download
memory/1996-32-0x0000000006230000-0x0000000006264000-memory.dmp

Filesize
208KB

Download
memory/1996-52-0x0000000007200000-0x0000000007211000-memory.dmp

Filesize
68KB

Download
memory/1996-42-0x0000000006C40000-0x0000000006C5E000-memory.dmp

Filesize
120KB

Download
memory/1996-44-0x0000000074D10000-0x00000000754C1000-memory.dmp

Filesize
7.7MB

Download
memory/1996-33-0x0000000070DF0000-0x0000000070E3C000-memory.dmp

Filesize
304KB

Download
memory/1996-45-0x0000000006D10000-0x0000000006DB4000-memory.dmp

Filesize
656KB

Download
memory/1996-31-0x0000000005CA0000-0x0000000005CEC000-memory.dmp

Filesize
304KB

Download
memory/1996-46-0x0000000074D10000-0x00000000754C1000-memory.dmp

Filesize
7.7MB

Download
memory/1996-47-0x0000000007640000-0x0000000007CBA000-memory.dmp

Filesize
6.5MB

Download
memory/1996-48-0x0000000006FC0000-0x0000000006FDA000-memory.dmp

Filesize
104KB

Download
memory/1996-49-0x0000000002AF0000-0x0000000002AFA000-memory.dmp

Filesize
40KB

Download
memory/1996-30-0x0000000005C60000-0x0000000005C7E000-memory.dmp

Filesize
120KB

Download
memory/1996-51-0x0000000007270000-0x0000000007306000-memory.dmp

Filesize
600KB

Download
memory/1996-43-0x0000000074D10000-0x00000000754C1000-memory.dmp

Filesize
7.7MB

Download
memory/1996-53-0x0000000007230000-0x000000000723E000-memory.dmp

Filesize
56KB

Download
memory/1996-54-0x0000000007240000-0x0000000007255000-memory.dmp

Filesize
84KB

Download
memory/1996-55-0x0000000007330000-0x000000000734A000-memory.dmp

Filesize
104KB

Download
memory/1996-29-0x0000000005870000-0x0000000005BC7000-memory.dmp

Filesize
3.3MB

Download
memory/1996-65-0x0000000007320000-0x0000000007328000-memory.dmp

Filesize
32KB

Download
memory/1996-20-0x0000000004EF0000-0x0000000004F56000-memory.dmp

Filesize
408KB

Download
memory/1996-19-0x0000000004E80000-0x0000000004EE6000-memory.dmp

Filesize
408KB

Download
memory/1996-80-0x0000000074D10000-0x00000000754C1000-memory.dmp

Filesize
7.7MB

Download
memory/1996-18-0x0000000004DE0000-0x0000000004E02000-memory.dmp

Filesize
136KB

Download
memory/1996-15-0x00000000051C0000-0x00000000057EA000-memory.dmp

Filesize
6.2MB

Download
memory/1996-17-0x0000000074D10000-0x00000000754C1000-memory.dmp

Filesize
7.7MB

Download
memory/1996-16-0x0000000074D10000-0x00000000754C1000-memory.dmp

Filesize
7.7MB

Download
memory/1996-14-0x0000000002490000-0x00000000024C6000-memory.dmp

Filesize
216KB

Download
memory/1996-13-0x0000000074D1E000-0x0000000074D1F000-memory.dmp

Filesize
4KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads