gh0strat | e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895

General

Target

e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895.dll
Size

137KB
MD5

43fc50cef1d6e00e5b07928c4deebeb3
SHA1

af89306b8f95250e162e40c94f1b9ea16df8d600
SHA256

e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895
SHA512

2f374df19608358acff8773a689a7fb03d2a281c9f45ac2fcd6664ecca27d4033e1231654ad4e13058cffbfb68113a32319fb030c6491c7ed7a486f6d06c4a0e
SSDEEP

3072:mR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuE:D25GgFny61mra6

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral2/memory/2392-4-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/2392-5-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/2392-6-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/2392-35-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat
behavioral2/memory/1412-37-0x0000000010000000-0x000000001001C000-memory.dmp	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat
Gh0strat family
gh0strat

Boot or Logon Autostart Execution: Port Monitors 1 TTPs 16 IoCs

Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

persistence

Port Monitors

T1547.010

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\IPP	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Local Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Standard TCP/IP Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Standard TCP/IP Port\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Appmon\Ports	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\WSPrint	Spoolsv.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	rundll32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\Microsoft Shared Fax Monitor	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\USB Monitor	Spoolsv.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\WSD Port\Adapters\WSPrint\OfflinePorts	Spoolsv.exe

Sets service image path in registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Spooler\ImagePath = "Spoolsv.exe"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Spooler\ImagePath = "Spoolsv.exe"	svchost.exe

ACProtect 1.3x - 1.4x DLL software 16 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/memory/2392-4-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/2392-5-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/2392-6-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/2392-7-0x00000000023E0000-0x00000000023FD000-memory.dmp	acprotect
behavioral2/memory/2392-8-0x00000000023E0000-0x00000000023FD000-memory.dmp	acprotect
behavioral2/memory/1412-20-0x00000000035F0000-0x000000000360D000-memory.dmp	acprotect
behavioral2/memory/1412-23-0x00000000035F0000-0x000000000360D000-memory.dmp	acprotect
behavioral2/memory/1412-22-0x00000000035F0000-0x000000000360D000-memory.dmp	acprotect
behavioral2/memory/1412-24-0x00000000035F0000-0x000000000360D000-memory.dmp	acprotect
behavioral2/memory/1412-25-0x00000000035F0000-0x000000000360D000-memory.dmp	acprotect
behavioral2/memory/2392-30-0x00000000023E0000-0x00000000023FD000-memory.dmp	acprotect
behavioral2/memory/2392-31-0x00000000023E0000-0x00000000023FD000-memory.dmp	acprotect
behavioral2/memory/2392-32-0x00000000023E0000-0x00000000023FD000-memory.dmp	acprotect
behavioral2/memory/2392-29-0x00000000023E0000-0x00000000023FD000-memory.dmp	acprotect
behavioral2/memory/2392-35-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect
behavioral2/memory/1412-37-0x0000000010000000-0x000000001001C000-memory.dmp	acprotect

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\scsimon.dll	svchost.exe
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Miscson.dll	svchost.exe
File created	C:\Windows\SysWOW64\Miscson.dll	svchost.exe
File opened for modification	C:\Windows\SysWOW64\scsimon.dll	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2392 set thread context of 1412	2392	rundll32.exe	91

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\AcSvcst.dll	rundll32.exe
File created	C:\Windows\AppPatch\AcSvcst.dll	rundll32.exe
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3448	2392	WerFault.exe	87

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Checks SCSI registry key(s) 3 TTPs 12 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\HardwareID	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\HardwareID	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\HardwareID	Spoolsv.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\HardwareID	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000001	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002	Spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_Msft&Prod_Virtual_DVD-ROM\2&1f4adffe&0&000002\Properties\{3b2ce006-5e61-4fde-bab8-9b8aac9b26df}\0002	Spoolsv.exe

Modifies data under HKEY_USERS 22 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows NT\CurrentVersion\Devices	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	Spoolsv.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\Devices	Spoolsv.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Send To OneNote 2016 = "winspool,nul:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Send To OneNote 2016 = "winspool,nul:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft XPS Document Writer = "winspool,Ne00:,15,45"	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows NT\CurrentVersion\PrinterPorts	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft Print to PDF = "winspool,Ne01:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft Print to PDF = "winspool,Ne01:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft Print to PDF = "winspool,Ne01:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Microsoft XPS Document Writer = "winspool,Ne00:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Send To OneNote 2016 = "winspool,nul:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft XPS Document Writer = "winspool,Ne00:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft Print to PDF = "winspool,Ne01:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Fax = "winspool,Ne02:,15,45"	Spoolsv.exe
Key created	\REGISTRY\USER\S-1-5-20\Software\Microsoft\Windows NT\CurrentVersion\Devices	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Send To OneNote 2016 = "winspool,nul:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Microsoft XPS Document Writer = "winspool,Ne00:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Fax = "winspool,Ne02:"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PrinterPorts\Fax = "winspool,Ne02:,15,45"	Spoolsv.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Devices\Fax = "winspool,Ne02:"	Spoolsv.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1412	svchost.exe
Token: SeDebugPrivilege	2392	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 2392	844	rundll32.exe	87
PID 844 wrote to memory of 2392	844	rundll32.exe	87
PID 844 wrote to memory of 2392	844	rundll32.exe	87
PID 2392 wrote to memory of 1412	2392	rundll32.exe	91
PID 2392 wrote to memory of 1412	2392	rundll32.exe	91
PID 2392 wrote to memory of 1412	2392	rundll32.exe	91
PID 2392 wrote to memory of 1412	2392	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:844
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e9a67618719f9be8b8e039a8a2e240bf7ddbc890c20989eb4cefcc99825bd895.dll,#1
  2⤵
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2392
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2392 -s 616
    3⤵
    - Program crash
    PID:3448
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe -k rundll32
    3⤵
    - Boot or Logon Autostart Execution: Port Monitors
    - Sets service image path in registry
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 2392 -ip 2392
1⤵
PID:2028

C:\Windows\system32\Spoolsv.exe
Spoolsv.exe
1⤵
- Boot or Logon Autostart Execution: Port Monitors
- Checks SCSI registry key(s)
- Modifies data under HKEY_USERS
PID:1956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Port Monitors

1

T1547.010

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Port Monitors

1

T1547.010

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

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:\Windows\AppPatch\ComBack.Dll

Filesize
137KB

MD5
f7f9824555540536aad0889a153209f8

SHA1
a314aca97600c4931d7a75c40d1368eeff02b1da

SHA256
8940c5c50d6d9b45f03f18e1517104113385f08a5ece2a2b27888c579f98438c

SHA512
83c77098d81b44bed60644b57eb0ca69e84cbda0b2868aa915ec64fee19a3a8263e8ba82496fced7b8cc3af552e84186009806e843957b6ab1a4639de27c2350

Download Submit
C:\Windows\SysWOW64\com\comb.dll

Filesize
94B

MD5
4717315dabafccbd4df288087c9458b0

SHA1
9f11bb3f5263bbf5033afa87779cd063ea63e6cd

SHA256
30fb6eac072baafe34d07914ed500195e98e9cb7fe72a9594be0735dc6b57942

SHA512
b7b632caded06e713e7c895d620e3c82b6494dee30ef9cc2b718f91443ca7f229f7b813209fb1b261f5b1852c2cd244ab96eeb547015980cde6b0dfdd881ef44

Download Submit
C:\Windows\SysWOW64\com\comb.dll

Filesize
160B

MD5
c572401cadd51474370611d43c2c49a4

SHA1
6d816502fad74c98789a19d494f9c654089ba9a7

SHA256
c54acde05799c7bb2279cf73453586d6e55db0034da1c02129f1222e3469d2a0

SHA512
60ae2ce36df808010e536afa2357d4abbff36aaefd3d2bf535373e9756f4dc4c783e5ba1ff346398d3250499b0be27fc35a93a8d9d4527cd2e6b3b2dd070e196

Download Submit
C:\Windows\SysWOW64\com\comb.dll

Filesize
203B

MD5
d636f4c9db91f38618c66f507a40de47

SHA1
92eec7611608e6d24eea5d782ff52f8a67afcb35

SHA256
63bc42d01635e44a95d251af66f11a74073c6e6f61ef7c858b113a5faee563d8

SHA512
7c7827f8e84f397ef9091641878c36c5e939f804b93fc457f513250668ed96cae67c62e3bde8367859d85452c2f0a664337929f07c23af65554e60fb98df3114

Download Submit
memory/1412-22-0x00000000035F0000-0x000000000360D000-memory.dmp

Filesize
116KB

Download
memory/1412-26-0x00000000013A0000-0x00000000013C7000-memory.dmp

Filesize
156KB

Download
memory/1412-12-0x0000000001200000-0x0000000001223000-memory.dmp

Filesize
140KB

Download
memory/1412-11-0x00000000013A0000-0x00000000013C7000-memory.dmp

Filesize
156KB

Download
memory/1412-37-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1412-13-0x00000000013A0000-0x00000000013C7000-memory.dmp

Filesize
156KB

Download
memory/1412-20-0x00000000035F0000-0x000000000360D000-memory.dmp

Filesize
116KB

Download
memory/1412-23-0x00000000035F0000-0x000000000360D000-memory.dmp

Filesize
116KB

Download
memory/1412-25-0x00000000035F0000-0x000000000360D000-memory.dmp

Filesize
116KB

Download
memory/1412-24-0x00000000035F0000-0x000000000360D000-memory.dmp

Filesize
116KB

Download
memory/2392-4-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2392-7-0x00000000023E0000-0x00000000023FD000-memory.dmp

Filesize
116KB

Download
memory/2392-30-0x00000000023E0000-0x00000000023FD000-memory.dmp

Filesize
116KB

Download
memory/2392-31-0x00000000023E0000-0x00000000023FD000-memory.dmp

Filesize
116KB

Download
memory/2392-32-0x00000000023E0000-0x00000000023FD000-memory.dmp

Filesize
116KB

Download
memory/2392-29-0x00000000023E0000-0x00000000023FD000-memory.dmp

Filesize
116KB

Download
memory/2392-6-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2392-35-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2392-36-0x0000000043E50000-0x0000000043E77000-memory.dmp

Filesize
156KB

Download
memory/2392-8-0x00000000023E0000-0x00000000023FD000-memory.dmp

Filesize
116KB

Download
memory/2392-5-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads