Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20250207-en -
resource tags
arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system -
submitted
16-02-2025 03:09
Behavioral task
behavioral1
Sample
9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe
Resource
win7-20240903-en
General
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Target
9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe
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Size
1.0MB
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MD5
a8f0dbaf4cb15bdf789f4ed217c7a972
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SHA1
1073329d1ba1efc63f7698dbc54b819d493a2cb9
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SHA256
9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7
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SHA512
ed20fb0f2064065bf23eb6b227c7ef5a03c5f607b87666a63e93c1b15dc139f6d54efcd7774ac159eab96fb88dfdc86d2a8da8a42920bf64521b4bc9eb9a79ba
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SSDEEP
24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/m:Ur9gNGKXYD+naGEsBXUv66k8o4yp5wm
Malware Config
Extracted
nanocore
1.2.2.0
testwork.kozow.com:8906
bd6fc7b5-d48b-4e23-98f7-784bd3ef305c
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activate_away_mode
true
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backup_connection_host
testwork.kozow.com
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backup_dns_server
8.8.4.4
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buffer_size
65535
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build_time
2019-02-16T16:47:25.218235636Z
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bypass_user_account_control
true
- bypass_user_account_control_data
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clear_access_control
true
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clear_zone_identifier
false
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connect_delay
4000
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connection_port
8906
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default_group
star
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enable_debug_mode
true
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gc_threshold
1.048576e+07
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keep_alive_timeout
30000
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keyboard_logging
false
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lan_timeout
2500
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max_packet_size
1.048576e+07
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mutex
bd6fc7b5-d48b-4e23-98f7-784bd3ef305c
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mutex_timeout
5000
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prevent_system_sleep
false
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primary_connection_host
testwork.kozow.com
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primary_dns_server
8.8.8.8
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request_elevation
true
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restart_delay
5000
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run_delay
0
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run_on_startup
true
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set_critical_process
true
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timeout_interval
5000
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use_custom_dns_server
false
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version
1.2.2.0
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wan_timeout
8000
Signatures
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Nanocore family
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Downloads MZ/PE file 1 IoCs
flow pid Process 88 1740 Process not Found -
Drops startup file 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PresentationHost.url 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe -
Checks whether UAC is enabled 1 TTPs 1 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe -
AutoIT Executable 15 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/1264-14-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-17-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-22-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-23-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-24-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-25-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-27-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-28-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-29-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-30-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-31-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-32-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-33-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-34-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe behavioral2/memory/1264-35-0x0000000000CD0000-0x0000000000E81000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1264 set thread context of 4864 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 90 -
resource yara_rule behavioral2/memory/1264-0-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-14-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-17-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-22-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-23-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-24-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-25-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-27-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-28-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-29-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-30-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-31-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-32-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-33-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-34-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx behavioral2/memory/1264-35-0x0000000000CD0000-0x0000000000E81000-memory.dmp upx -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MicrosoftEdgeUpdate.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 4408 MicrosoftEdgeUpdate.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4864 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4864 RegAsm.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1264 wrote to memory of 4864 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 90 PID 1264 wrote to memory of 4864 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 90 PID 1264 wrote to memory of 4864 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 90 PID 1264 wrote to memory of 4864 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 90 PID 1264 wrote to memory of 4864 1264 9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe"C:\Users\Admin\AppData\Local\Temp\9effd5b1fd3e02af88759658021d92fbc0ea0ca0c4d4d09c28193295692accf7.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1264 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"2⤵
- Checks whether UAC is enabled
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:4864
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C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7OUU0RERCRjYtMDc0Qy00QzQ5LUI0OEUtRDJDMkQwQ0EwNTZFfSIgdXNlcmlkPSJ7Q0I1QTkyQUItNzJGRC00QjlBLTk5MUYtNUQxNTlFNjBEQTk3fSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7Q0M1NkNCQTYtREE0Qy00RDFELTk0RTEtRUQwMUNFOEVBNTg2fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI4IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY0MzMiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODc1OTU2NTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1NTcwMjM4MTg4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4408