RANSOM_REDEYE.THFOGAH

Infiltra un archivo AUTORUN.INF para que ejecute automáticamente las copias que infiltra cuando un usuario accede a las unidades de un sistema afectado.

Instalación

Infiltra los archivos siguientes:

• %System Root%\Save1.txt
• %System Root%\autorun.inf
• %System Root%\Windows\Nope.txt
• %System Root%\Windows\Detect.txt
• %System Root%\Windows\AfterMBR.txt
• %System Root%\redeyebmp.bmp -> used as wallpaper

(Nota: %System Root% es la carpeta raíz, normalmente C:\. También es la ubicación del sistema operativo).

Crea las siguientes copias de sí mismo en el sistema afectado:

• %User Temp%\{malware name}.exe

(Nota: %User Temp% es la carpeta Temp del usuario activo, que en el caso de Windows 2000, XP y Server 2003 suele estar en C:\Documents and Settings\{nombre de usuario}\Local Settings\Temp).

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
Windows Update = %User Temp%\{malware name}.exe

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Windows Update = %User Temp%\{malware name}.exe

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
Shell = %User Temp%\{malware name}.exe

Otras modificaciones del sistema

Agrega las siguientes entradas de registro como parte de la rutina de instalación:

HKEY_CURRENT_USER\Control Panel\Desktop
WallPaper = %System Root%\redeyebmp.bmp

HKEY_CURRENT_USER\Software\ShortCutInfection
Mr.Wolf = True

Modifica las siguientes entradas de registro:

HKEY_LOCAL_MACHINE\Software\Policies\
Microsoft\Windows Defender
DisableAntiSpyware = 1

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

HKEY_LOCAL_MACHINE\Software\Policies\
Microsoft\Windows Defender
DisableRoutinelyTakingAction = 1

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
WindowsDefenderMAJ = 1

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

HKEY_CURRENT_USER\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
WindowsDefenderMAJ = 1

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

HKEY_CURRENT_USER\Software\Microsoft\
Windows Script Host\Settings
Enabled = 0

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

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows Script Host\Settings
Enabled = 0

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

HKEY_CURRENT_USER\Software\Policies\
Microsoft\Windows NT\SystemRestore
DisableSR = 1

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

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

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

HKEY_CURRENT_USER\Software\Policies\
Microsoft\Windows NT\SystemRestore
DisableConfig = 1

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

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

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

HKEY_CURRENT_USER\SYSTEM\CurrentControlSet\
Services
USBSTOR = 4

(Note: The default value data of the said registry entry is 3.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services
USBSTOR = 4

(Note: The default value data of the said registry entry is 3.)

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

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

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

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

HKEY_CURRENT_USER\SOFTWARE\Policies\
Microsoft\Windows Defender
ServiceKeepAlive = 0

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

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender
ServiceKeepAlive = 0

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

HKEY_CURRENT_USER\SOFTWARE\Policies\
Microsoft\Windows Defender\Signature Updates
ForceUpdateFromMU = 0

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

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender\Signature Updates
ForceUpdateFromMU = 0

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

HKEY_CURRENT_USER\SOFTWARE\Policies\
Microsoft\Windows Defender\Signature Updates
UpdateOnStartUp = 0

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

HKEY_LOCAL_MACHINE\Software\Policies\
Microsoft\Windows
DisableCMD = 2

HKEY_LOCAL_MACHINE\Software\Policies\
Microsoft\Windows\System
DisableCMD = 2

HKEY_LOCAL_MACHINE\Software\Policies\
Microsoft
DisableCMD = 2

HKEY_CURRENT_USER\Software\Policies\
Microsoft\Windows
DisableCMD = 2

HKEY_CURRENT_USER\Software\Policies\
Microsoft\Windows\System
DisableCMD = 2

HKEY_CURRENT_USER\Software\Policies\
Microsoft
DisableCMD = 2

HKEY_CURRENT_USER\Software\Policies\
Microsoft\MMC\{8FC0B734-A0E1-11D1-A7D3-0000F87571E3}
Restrict_Run = 1

HKEY_LOCAL_MACHINE\Software\Policies\
Microsoft\MMC\{8FC0B734-A0E1-11D1-A7D3-0000F87571E3}
Restrict_Run = 1

HKEY_CURRENT_USER\SOFTWARE\Policies\
Microsoft\Windows Defender\Real-Time Protection
DisableRealtimeMonitoring = 1

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

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

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

HKEY_CURRENT_USER\SYSTEM\CurrentControlSet\
Services
SecurityHealthService = 4

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services
SecurityHealthService = 4

(Note: The default value data of the said registry entry is 2.)

HKEY_CURRENT_USER\SYSTEM\CurrentControlSet\
Services
WdNisSvc = 3

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services
WdNisSvc = 3

(Note: The default value data of the said registry entry is 2.)

HKEY_CURRENT_USER\SYSTEM\CurrentControlSet\
Services
WinDefend = 3

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services
WinDefend = 3

(Note: The default value data of the said registry entry is 2.)

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\
Explorer
NoControlPanel = 1

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

HKEY_CURRENT_USER\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoRun = 1

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

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

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

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

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

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
DisableRegistryTools = 1

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

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoDrives = 4

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoDrives = 4

Infección de archivo

Evita infectar archivos que no usan iconos específicos.

• desktop.ini

Propagación

Este malware infiltra las siguientes copias de sí mismo en todas las unidades físicas y extraíbles:

• {Logical Drives}:\windows.exe

Infiltra un archivo AUTORUN.INF para que ejecute automáticamente las copias que infiltra cuando un usuario accede a las unidades de un sistema afectado.

Finalización del proceso

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

• SbieCtrl
• ProcessHacker
• procexp64
• msconfig
• taskmgr
• chrome
• firefox
• regedit
• opera
• UserAccountControlSettings
• yandex
• microsoftedge
• microsoftedgecp
• iexplore