modiloader | 76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9c

Analysis

max time kernel
149s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 02:30

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General

Target

76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
Size

90KB
MD5

f506e615a70cbcdf2e4968b5d6c61d70
SHA1

8f74818cdee5fc6393e46e88f9de046c44682cff
SHA256

76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9c
SHA512

b68f253d50c9033dd3b8fd4854ada7aa78fa7cbb846f22c89aea2c24c9c114df235ad5440ef212103442c145d46bf6382dd1684b4995c5b75853f94297963469
SSDEEP

1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDK:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3Y

Score

10^/10

modiloader discovery persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

ModiLoader Second Stage 2 IoCs

resource	yara_rule
behavioral1/memory/1876-250-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2
behavioral1/memory/1876-259-0x0000000000400000-0x0000000000414000-memory.dmp	modiloader_stage2

Executes dropped EXE 3 IoCs

pid	Process
1228	csrsll.exe
2456	csrsll.exe
1876	csrsll.exe

Loads dropped DLL 5 IoCs

pid	Process
2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe

UPX packed file 24 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2384-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2384-26-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2384-91-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2384-84-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2384-81-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2552-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2552-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2552-104-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2384-103-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2552-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2552-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2552-96-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/2552-94-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/files/0x000a000000015d70-134.dat	upx
behavioral1/memory/2552-136-0x00000000032B0000-0x0000000003303000-memory.dmp	upx
behavioral1/memory/2552-147-0x00000000032B0000-0x0000000003303000-memory.dmp	upx
behavioral1/memory/2552-151-0x00000000032B0000-0x0000000003303000-memory.dmp	upx
behavioral1/memory/2552-155-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1228-223-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/2552-257-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1228-253-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral1/memory/1876-250-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/1876-259-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/memory/2456-258-0x0000000000400000-0x000000000040B000-memory.dmp	upx

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Win Pdf = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\csrsll.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2384 set thread context of 2552	2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	30
PID 1228 set thread context of 2456	1228	csrsll.exe	36
PID 1228 set thread context of 1876	1228	csrsll.exe	37

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 7 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	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csrsll.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe
Token: SeDebugPrivilege	2456	csrsll.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
1228	csrsll.exe
2456	csrsll.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2552	2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	30
PID 2384 wrote to memory of 2552	2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	30
PID 2384 wrote to memory of 2552	2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	30
PID 2384 wrote to memory of 2552	2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	30
PID 2384 wrote to memory of 2552	2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	30
PID 2384 wrote to memory of 2552	2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	30
PID 2384 wrote to memory of 2552	2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	30
PID 2384 wrote to memory of 2552	2384	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	30
PID 2552 wrote to memory of 904	2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	32
PID 2552 wrote to memory of 904	2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	32
PID 2552 wrote to memory of 904	2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	32
PID 2552 wrote to memory of 904	2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	32
PID 904 wrote to memory of 2568	904	cmd.exe	34
PID 904 wrote to memory of 2568	904	cmd.exe	34
PID 904 wrote to memory of 2568	904	cmd.exe	34
PID 904 wrote to memory of 2568	904	cmd.exe	34
PID 2552 wrote to memory of 1228	2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	35
PID 2552 wrote to memory of 1228	2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	35
PID 2552 wrote to memory of 1228	2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	35
PID 2552 wrote to memory of 1228	2552	76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe	35
PID 1228 wrote to memory of 2456	1228	csrsll.exe	36
PID 1228 wrote to memory of 2456	1228	csrsll.exe	36
PID 1228 wrote to memory of 2456	1228	csrsll.exe	36
PID 1228 wrote to memory of 2456	1228	csrsll.exe	36
PID 1228 wrote to memory of 2456	1228	csrsll.exe	36
PID 1228 wrote to memory of 2456	1228	csrsll.exe	36
PID 1228 wrote to memory of 2456	1228	csrsll.exe	36
PID 1228 wrote to memory of 2456	1228	csrsll.exe	36
PID 1228 wrote to memory of 1876	1228	csrsll.exe	37
PID 1228 wrote to memory of 1876	1228	csrsll.exe	37
PID 1228 wrote to memory of 1876	1228	csrsll.exe	37
PID 1228 wrote to memory of 1876	1228	csrsll.exe	37
PID 1228 wrote to memory of 1876	1228	csrsll.exe	37
PID 1228 wrote to memory of 1876	1228	csrsll.exe	37
PID 1228 wrote to memory of 1876	1228	csrsll.exe	37
PID 1228 wrote to memory of 1876	1228	csrsll.exe	37

C:\Users\Admin\AppData\Local\Temp\76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
"C:\Users\Admin\AppData\Local\Temp\76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Users\Admin\AppData\Local\Temp\76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe
  "C:\Users\Admin\AppData\Local\Temp\76ffb7624ec9c11cf2f169792d06c737c5124e53855133329d3908d33498ea9cN.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2552
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\AXCVU.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:904
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2568
- - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1228
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2456
  - - C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:1876

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\AXCVU.bat

Filesize
145B

MD5
4eb61ec7816c34ec8c125acadc57ec1b

SHA1
b0015cc865c0bb1a027be663027d3829401a31cc

SHA256
08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

SHA512
f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

Filesize
90KB

MD5
c2ce4c89183376796ecfe000cbbd3535

SHA1
33bc8db43b8686462055af68caca0618ffcb4199

SHA256
bb4403132e91c9282ee3e28e13242f6ded18bdc99e2eebc27a5f23b7c7196f97

SHA512
d3cfd571ab7c7a1f43816bda507dd468152d0c6eb4539a373ee2ee136df672ba70639c8f89e09d6372ead4ca6eec71ef7ab21e41284cdbd4bf2a6747af68a6a5

Download Submit
memory/1228-179-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1228-223-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1228-168-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1228-158-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1228-253-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/1876-250-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1876-259-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2384-41-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/2384-26-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2384-61-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/2384-81-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2384-29-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2384-15-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2384-107-0x0000000002790000-0x00000000027E3000-memory.dmp

Filesize
332KB

Download
memory/2384-84-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2384-91-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2384-103-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2384-71-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2384-0-0x0000000000400000-0x0000000000453000-memory.dmp

Filesize
332KB

Download
memory/2384-25-0x0000000000404000-0x0000000000405000-memory.dmp

Filesize
4KB

Download
memory/2384-79-0x0000000000540000-0x0000000000542000-memory.dmp

Filesize
8KB

Download
memory/2384-3-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2384-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2456-258-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-136-0x00000000032B0000-0x0000000003303000-memory.dmp

Filesize
332KB

Download
memory/2552-148-0x00000000032B0000-0x0000000003303000-memory.dmp

Filesize
332KB

Download
memory/2552-147-0x00000000032B0000-0x0000000003303000-memory.dmp

Filesize
332KB

Download
memory/2552-151-0x00000000032B0000-0x0000000003303000-memory.dmp

Filesize
332KB

Download
memory/2552-155-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-92-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-94-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-215-0x00000000032B0000-0x0000000003303000-memory.dmp

Filesize
332KB

Download
memory/2552-96-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2552-257-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-104-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2552-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads