Ransom.Win64.HIVE.YABIW
Windows
Tipo de malware
Ransomware
Destructivo?
No
Cifrado
In the Wild:
Sí
Resumen y descripción
It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Detalles técnicos
Detalles de entrada
It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Instalación
Infiltra los archivos siguientes:
- {Random characters}_.key.ssmpt
Agrega los procesos siguientes:
- net.exe stop "NetMsmqActivator" /y
- net.exe stop "SamSs" /y
- net.exe stop "SDRSVC" /y
- net.exe stop "SstpSvc" /y
- net.exe stop "UI0Detect" /y
- net.exe stop "vmvss" /y
- net.exe stop "VSS" /y
- net.exe stop "wbengine" /y
- net.exe stop "WebClient" /y
- sc.exe config "NetMsmqActivator" start= disabled
- sc.exe config "SamSs" start= disabled
- sc.exe config "SDRSVC" start= disabled
- sc.exe config "SstpSvc" start= disabled
- sc.exe config "UI0Detect" start= disabled
- sc.exe config "vmvss" start= disabled
- sc.exe config "VSS" start= disabled
- sc.exe config "wbengine" start= disabled
- sc.exe config "WebClient" start= disabled
- reg.exe add "HKLM\System\CurrentControlSet\Services\SecurityHealthService" /v "Start" /t REG_DWORD /d "4" /f
- reg.exe delete "HKLM\Software\Policies\Microsoft\Windows Defender" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d "1" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiVirus" /t REG_DWORD /d "1" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\MpEngine" /v "MpEnablePus" /t REG_DWORD /d "0" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableBehaviorMonitoring" /t REG_DWORD /d "1" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableIOAVProtection" /t REG_DWORD /d "1" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableOnAccessProtection" /t REG_DWORD /d "1" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d "1" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableScanOnRealtimeEnable" /t REG_DWORD /d "1" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\Reporting" /v "DisableEnhancedNotifications" /t REG_DWORD /d "1" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "DisableBlockAtFirstSeen" /t REG_DWORD /d "1" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SpynetReporting" /t REG_DWORD /d "0" /f
- reg.exe add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SubmitSamplesConsent" /t REG_DWORD /d "0" /f
- reg.exe add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderApiLogger" /v "Start" /t REG_DWORD /d "0" /f
- reg.exe add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderAuditLogger" /v "Start" /t REG_DWORD /d "0" /f
- schtasks.exe /Change /TN "Microsoft\Windows\ExploitGuard\ExploitGuard MDM policy Refresh" /Disable
- schtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance" /Disable
- schtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cleanup" /Disable
- schtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Disable
- schtasks.exe /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Verification" /Disable
- reg.exe delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run" /v "Windows Defender" /f
- reg.exe delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Defender" /f
- reg.exe delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "WindowsDefender" /f
- reg.exe delete "HKCR\*\shellex\ContextMenuHandlers\EPP" /f
- reg.exe delete "HKCR\Directory\shellex\ContextMenuHandlers\EPP" /f
- reg.exe delete "HKCR\Drive\shellex\ContextMenuHandlers\EPP" /f
- reg.exe add "HKLM\System\CurrentControlSet\Services\WdBoot" /v "Start" /t REG_DWORD /d "4" /f
- reg.exe add "HKLM\System\CurrentControlSet\Services\WdFilter" /v "Start" /t REG_DWORD /d "4" /f
- reg.exe add "HKLM\System\CurrentControlSet\Services\WdNisDrv" /v "Start" /t REG_DWORD /d "4" /f
- reg.exe add "HKLM\System\CurrentControlSet\Services\WdNisSvc" /v "Start" /t REG_DWORD /d "4" /f
- reg.exe add "HKLM\System\CurrentControlSet\Services\WinDefend" /v "Start" /t REG_DWORD /d "4" /f
- reg.exe add "HKLM\System\CurrentControlSet\Services\SecurityHealthService" /v "Start" /t REG_DWORD /d "4" /f
- vssadmin.exe delete shadows /all /quiet
Otras modificaciones del sistema
Modifica las siguientes entradas de registro:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender
DisableAntiVirus = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\MpEngine
MpEnablePus = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\Real-Time Protection
DisableBehaviorMonitoring = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\Real-Time Protection
DisableIOAVProtection = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\Real-Time Protection
DisableOnAccessProtection = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\Real-Time Protection
DisableRealtimeMonitoring = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\Real-Time Protection
DisableScanOnRealtimeEnable = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\Reporting
DisableEnhancedNotifications = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\SpyNet
DisableBlockAtFirstSeen = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\SpyNet
SpynetReporting = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\SpyNet
SubmitSamplesConsent = 0
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\WMI\Autologger\
DefenderApiLogger
Start = 0
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\WMI\Autologger\
DefenderAuditLogger
Start = 0
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\WdBoot
Start = 4
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\WdFilter
Start = 4
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\WdNisDrv
Start = 4
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\WdNisSvc
Start = 4
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\WinDefend
Start = 4
Soluciones
Step 1
Los usuarios de Windows ME y XP, antes de llevar a cabo cualquier exploración, deben comprobar que tienen desactivada la opción Restaurar sistema para permitir la exploración completa del equipo.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Restaurar este valor del Registro modificado
Importante: si modifica el Registro de Windows incorrectamente, podría hacer que el sistema funcione mal de manera irreversible. Lleve a cabo este paso solo si sabe cómo hacerlo o si puede contar con ayuda de su administrador del sistema. De lo contrario, lea este artículo de Microsoft antes de modificar el Registro del equipo.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender
- DisableAntiVirus = 1
- DisableAntiVirus = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\MpEngine
- MpEnablePus = 0
- MpEnablePus = 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection
- DisableBehaviorMonitoring = 1
- DisableBehaviorMonitoring = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection
- DisableIOAVProtection = 1
- DisableIOAVProtection = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection
- DisableOnAccessProtection = 1
- DisableOnAccessProtection = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection
- DisableRealtimeMonitoring = 1
- DisableRealtimeMonitoring = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection
- DisableScanOnRealtimeEnable = 1
- DisableScanOnRealtimeEnable = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Reporting
- DisableEnhancedNotifications = 1
- DisableEnhancedNotifications = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\SpyNet
- DisableBlockAtFirstSeen = 1
- DisableBlockAtFirstSeen = 1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\SpyNet
- SpynetReporting = 0
- SpynetReporting = 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\SpyNet
- SubmitSamplesConsent = 0
- SubmitSamplesConsent = 0
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\WMI\Autologger\DefenderApiLogger
- Start = 0
- Start = 0
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\WMI\Autologger\DefenderAuditLogger
- Start = 0
- Start = 0
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\WdBoot
- Start = 4
- Start = 4
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\WdFilter
- Start = 4
- Start = 4
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\WdNisDrv
- Start = 4
- Start = 4
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\WdNisSvc
- Start = 4
- Start = 4
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\WinDefend
- Start = 4
- Start = 4
Step 4
Buscar y eliminar este archivo
- {Encrypted folder}\{Random characters}_HOW_TO_DECRYPT.txt
- {Random characters}_.key.ssmpt
Step 5
Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como Ransom.Win64.HIVE.YABIW En caso de que el producto de Trend Micro ya haya limpiado, eliminado o puesto en cuarentena los archivos detectados, no serán necesarios más pasos. Puede optar simplemente por eliminar los archivos en cuarentena. Consulte esta página de Base de conocimientos para obtener más información.
Step 7
Restore encrypted files from backup.
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