TROJ_KRYPTIK.JOB
TrojanDownloader:Win32/Karagany.F (Microsoft); Trojan.Gen.2 (Symantec); Trojan-Downloader.Win32.Agent.tkyn (Kaspersky); Trojan.Win32.Generic.pak!cobra (Sunbelt); Gen:Variant.Kazy.41789 (FSecure)
Windows 2000, Windows, XP, Windows Server 2003
Threat Type:
Trojan
Destructiveness:
No
Encrypted:
In the wild::
Yes
OVERVIEW
TECHNICAL DETAILS
Otras modificaciones del sistema
Modifica las siguientes entradas de registro:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\advapi32.dll[MofResourceName] = "LowDateTime:-878345984,HighDateTime:29653303***Binary mof compiled successfully"
(Note: The default value data of the said registry entry is LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\DRIVERS\ACPI.sys[ACPIMOFResource] = "LowDateTime:-1893836544,HighDateTime:29653288***Binary mof compiled successfully"
(Note: The default value data of the said registry entry is LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\DRIVERS\mssmbios.sys[MofResource] = "LowDateTime:246686720,HighDateTime:29653305***Binary mof compiled successfully"
(Note: The default value data of the said registry entry is LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\DRIVERS\intelppm.sys[PROCESSORWMI] = "LowDateTime:1716098048,HighDateTime:29653287***Binary mof compiled successfully"
(Note: The default value data of the said registry entry is LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\DRIVERS\ipnat.sys[IPNATMofResource] = "LowDateTime:741130752,HighDateTime:29653288***Binary mof compiled successfully"
(Note: The default value data of the said registry entry is LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
WBEM\WDM
%System%\Drivers\HTTP.sys[UlMofResource] = "LowDateTime:-2038869248,HighDateTime:29653287***Binary mof compiled successfully"
(Note: The default value data of the said registry entry is LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Tracing\
Microsoft\Imapi
LogSessionName = "stdout"
(Note: The default value data of the said registry entry is stdout.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Tracing\
Microsoft\Imapi
Active = 1
(Note: The default value data of the said registry entry is 1.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Tracing\
Microsoft\Imapi
ControlFlags = 1
(Note: The default value data of the said registry entry is 1.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Tracing\
Microsoft\Imapi\ImapiSvc
Guid = "8107d8e9-e323-49f5-bba2-abc35c243dca"
(Note: The default value data of the said registry entry is 8107d8e9-e323-49f5-bba2-abc35c243dca.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Tracing\
Microsoft\Imapi\ImapiSvc
BitNames = " ImapiDebugError ImapiDebugWarning ImapiDebugTrace ImapiDebugInfo ImapiDebugX ImapiDebugSort"
(Note: The default value data of the said registry entry is ImapiDebugError ImapiDebugWarning ImapiDebugTrace ImapiDebugInfo ImapiDebugX ImapiDebugSort.)
Rutina de infiltración
Infiltra los archivos siguientes:
- %User Temp%\~!#1.tmp
- %User Temp%\~!#2.tmp
- %User Temp%\~!#3.tmp
- %User Temp%\~!#4.tmp
- %User Temp%\~!#5.tmp
- %User Temp%\~!#6.tmp
- %User Temp%\~!#7.tmp
- %User Temp%\~!#8.tmp
- %User Temp%\~!#9.tmp
- %User Temp%\~!#A.tmp
- %User Temp%\~!#B.tmp
- %User Temp%\~!#C.tmp
- %User Temp%\~!#D.tmp
- %User Temp%\~!#E.tmp
- %User Temp%\~!#F.tmp
- %User Temp%\~!#10.tmp
- %User Temp%\~!#11.tmp
- %User Temp%\~!#12.tmp
- %User Temp%\~!#13.tmp
- %User Temp%\~!#14.tmp
- %User Temp%\~!#15.tmp
- %User Temp%\~!#16.tmp
- %User Temp%\~!#17.tmp
- %User Temp%\~!#18.tmp
- %User Temp%\~!#19.tmp
- %User Temp%\~!#1A.tmp
- %User Temp%\~!#1B.tmp
- %User Temp%\~!#1C.tmp
- %User Temp%\~!#1D.tmp
- %User Temp%\~!#1E.tmp
- %User Temp%\~!#1F.tmp
- %User Temp%\~!#20.tmp
- %User Temp%\~!#21.tmp
- %User Temp%\~!#22.tmp
- %User Temp%\~!#23.tmp
- %User Temp%\~!#24.tmp
- %User Temp%\~!#25.tmp
- %User Temp%\~!#26.tmp
- %User Temp%\~!#27.tmp
- %User Temp%\~!#28.tmp
- %User Temp%\~!#29.tmp
- %User Temp%\~!#2A.tmp
- %User Temp%\~!#2B.tmp
- %User Temp%\~!#2C.tmp
- %User Temp%\~!#2D.tmp
- %User Temp%\~!#2E.tmp
- %User Temp%\~!#2F.tmp
- %User Temp%\~!#30.tmp
- %User Temp%\~!#31.tmp
- %User Temp%\~!#32.tmp
- %User Temp%\~!#33.tmp
- %User Temp%\~!#34.tmp
- %User Temp%\~!#35.tmp
- %User Temp%\~!#36.tmp
- %User Temp%\~!#37.tmp
- %User Temp%\~!#38.tmp
- %User Temp%\~!#39.tmp
- %User Temp%\~!#3A.tmp
- %User Temp%\~!#3B.tmp
- %User Temp%\~!#3C.tmp
- %User Temp%\~!#3D.tmp
- %User Temp%\~!#3E.tmp
- %User Temp%\~!#3F.tmp
- %User Temp%\~!#40.tmp
- %User Temp%\~!#41.tmp
- %User Temp%\~!#42.tmp
- %User Temp%\~!#43.tmp
- %User Temp%\~!#44.tmp
- %User Temp%\~!#45.tmp
- %User Temp%\~!#46.tmp
- %User Temp%\~!#47.tmp
- %User Temp%\~!#48.tmp
- %User Temp%\~!#49.tmp
- %User Temp%\~!#4A.tmp
- %User Temp%\~!#4B.tmp
- %User Temp%\~!#4C.tmp
- %User Temp%\~!#4D.tmp
- %User Temp%\~!#4E.tmp
- %User Temp%\~!#4F.tmp
- %User Temp%\~!#50.tmp
- %User Temp%\~!#51.tmp
- %User Temp%\~!#52.tmp
- %User Temp%\~!#53.tmp
- %User Temp%\~!#54.tmp
- %User Temp%\~!#55.tmp
- %User Temp%\~!#56.tmp
- %User Temp%\~!#57.tmp
- %User Temp%\~!#58.tmp
- %User Temp%\~!#59.tmp
- %User Temp%\~!#5A.tmp
- %User Temp%\~!#5B.tmp
- %User Temp%\~!#5C.tmp
- %User Temp%\~!#5D.tmp
- %User Temp%\~!#5E.tmp
- %User Temp%\~!#5F.tmp
- %User Temp%\~!#60.tmp
- %User Temp%\~!#61.tmp
- %User Temp%\~!#62.tmp
- %User Temp%\~!#63.tmp
- %User Temp%\~!#64.tmp
- %User Temp%\~!#65.tmp
- %User Temp%\~!#66.tmp
- %User Temp%\~!#67.tmp
- %User Temp%\~!#68.tmp
- %User Temp%\~!#69.tmp
- %User Temp%\~!#6A.tmp
- %User Temp%\~!#6B.tmp
- %User Temp%\~!#6C.tmp
- %User Temp%\~!#6D.tmp
- %User Temp%\~!#6E.tmp
- %User Temp%\~!#6F.tmp
- %User Temp%\~!#70.tmp
- %User Temp%\~!#71.tmp
- %User Temp%\~!#72.tmp
- %User Temp%\~!#73.tmp
- %User Temp%\~!#74.tmp
- %User Temp%\~!#75.tmp
- %User Temp%\~!#76.tmp
- %User Temp%\~!#77.tmp
- %Temp%\gnh1k0rc.TMP
(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).
. %Temp% es la carpeta de archivos temporales de Windows, que suele estar en C:\Windows\Temp o C:\WINNT\Temp).)
SOLUTION
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
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\Microsoft\WBEM\WDM
- From: %System%\advapi32.dll[MofResourceName]="LowDateTime:-878345984,HighDateTime:29653303***Binary mof compiled successfully"
To: %System%\advapi32.dll[MofResourceName]=LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully
- From: %System%\advapi32.dll[MofResourceName]="LowDateTime:-878345984,HighDateTime:29653303***Binary mof compiled successfully"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- From: %System%\DRIVERS\ACPI.sys[ACPIMOFResource]="LowDateTime:-1893836544,HighDateTime:29653288***Binary mof compiled successfully"
To: %System%\DRIVERS\ACPI.sys[ACPIMOFResource]=LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully
- From: %System%\DRIVERS\ACPI.sys[ACPIMOFResource]="LowDateTime:-1893836544,HighDateTime:29653288***Binary mof compiled successfully"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- From: %System%\DRIVERS\mssmbios.sys[MofResource]="LowDateTime:246686720,HighDateTime:29653305***Binary mof compiled successfully"
To: %System%\DRIVERS\mssmbios.sys[MofResource]=LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully
- From: %System%\DRIVERS\mssmbios.sys[MofResource]="LowDateTime:246686720,HighDateTime:29653305***Binary mof compiled successfully"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- From: %System%\DRIVERS\intelppm.sys[PROCESSORWMI]="LowDateTime:1716098048,HighDateTime:29653287***Binary mof compiled successfully"
To: %System%\DRIVERS\intelppm.sys[PROCESSORWMI]=LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully
- From: %System%\DRIVERS\intelppm.sys[PROCESSORWMI]="LowDateTime:1716098048,HighDateTime:29653287***Binary mof compiled successfully"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- From: %System%\DRIVERS\ipnat.sys[IPNATMofResource]="LowDateTime:741130752,HighDateTime:29653288***Binary mof compiled successfully"
To: %System%\DRIVERS\ipnat.sys[IPNATMofResource]=LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully
- From: %System%\DRIVERS\ipnat.sys[IPNATMofResource]="LowDateTime:741130752,HighDateTime:29653288***Binary mof compiled successfully"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WBEM\WDM
- From: %System%\Drivers\HTTP.sys[UlMofResource]="LowDateTime:-2038869248,HighDateTime:29653287***Binary mof compiled successfully"
To: %System%\Drivers\HTTP.sys[UlMofResource]=LowDateTime:-1618731008,HighDateTime:29653597***Binary mof compiled successfully
- From: %System%\Drivers\HTTP.sys[UlMofResource]="LowDateTime:-2038869248,HighDateTime:29653287***Binary mof compiled successfully"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\Imapi
- From: LogSessionName="stdout"
To: LogSessionName=stdout
- From: LogSessionName="stdout"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\Imapi
- From: Active=1
To: Active=1
- From: Active=1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\Imapi
- From: ControlFlags=1
To: ControlFlags=1
- From: ControlFlags=1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\Imapi\ImapiSvc
- From: Guid="8107d8e9-e323-49f5-bba2-abc35c243dca"
To: Guid=8107d8e9-e323-49f5-bba2-abc35c243dca
- From: Guid="8107d8e9-e323-49f5-bba2-abc35c243dca"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Tracing\Microsoft\Imapi\ImapiSvc
- From: BitNames=" ImapiDebugError ImapiDebugWarning ImapiDebugTrace ImapiDebugInfo ImapiDebugX ImapiDebugSort"
To: BitNames= ImapiDebugError ImapiDebugWarning ImapiDebugTrace ImapiDebugInfo ImapiDebugX ImapiDebugSort
- From: BitNames=" ImapiDebugError ImapiDebugWarning ImapiDebugTrace ImapiDebugInfo ImapiDebugX ImapiDebugSort"
Step 3
Buscar y eliminar estos archivos
- %User Temp%\~!#1.tmp
- %User Temp%\~!#2.tmp
- %User Temp%\~!#3.tmp
- %User Temp%\~!#4.tmp
- %User Temp%\~!#5.tmp
- %User Temp%\~!#6.tmp
- %User Temp%\~!#7.tmp
- %User Temp%\~!#8.tmp
- %User Temp%\~!#9.tmp
- %User Temp%\~!#A.tmp
- %User Temp%\~!#B.tmp
- %User Temp%\~!#C.tmp
- %User Temp%\~!#D.tmp
- %User Temp%\~!#E.tmp
- %User Temp%\~!#F.tmp
- %User Temp%\~!#10.tmp
- %User Temp%\~!#11.tmp
- %User Temp%\~!#12.tmp
- %User Temp%\~!#13.tmp
- %User Temp%\~!#14.tmp
- %User Temp%\~!#15.tmp
- %User Temp%\~!#16.tmp
- %User Temp%\~!#17.tmp
- %User Temp%\~!#18.tmp
- %User Temp%\~!#19.tmp
- %User Temp%\~!#1A.tmp
- %User Temp%\~!#1B.tmp
- %User Temp%\~!#1C.tmp
- %User Temp%\~!#1D.tmp
- %User Temp%\~!#1E.tmp
- %User Temp%\~!#1F.tmp
- %User Temp%\~!#20.tmp
- %User Temp%\~!#21.tmp
- %User Temp%\~!#22.tmp
- %User Temp%\~!#23.tmp
- %User Temp%\~!#24.tmp
- %User Temp%\~!#25.tmp
- %User Temp%\~!#26.tmp
- %User Temp%\~!#27.tmp
- %User Temp%\~!#28.tmp
- %User Temp%\~!#29.tmp
- %User Temp%\~!#2A.tmp
- %User Temp%\~!#2B.tmp
- %User Temp%\~!#2C.tmp
- %User Temp%\~!#2D.tmp
- %User Temp%\~!#2E.tmp
- %User Temp%\~!#2F.tmp
- %User Temp%\~!#30.tmp
- %User Temp%\~!#31.tmp
- %User Temp%\~!#32.tmp
- %User Temp%\~!#33.tmp
- %User Temp%\~!#34.tmp
- %User Temp%\~!#35.tmp
- %User Temp%\~!#36.tmp
- %User Temp%\~!#37.tmp
- %User Temp%\~!#38.tmp
- %User Temp%\~!#39.tmp
- %User Temp%\~!#3A.tmp
- %User Temp%\~!#3B.tmp
- %User Temp%\~!#3C.tmp
- %User Temp%\~!#3D.tmp
- %User Temp%\~!#3E.tmp
- %User Temp%\~!#3F.tmp
- %User Temp%\~!#40.tmp
- %User Temp%\~!#41.tmp
- %User Temp%\~!#42.tmp
- %User Temp%\~!#43.tmp
- %User Temp%\~!#44.tmp
- %User Temp%\~!#45.tmp
- %User Temp%\~!#46.tmp
- %User Temp%\~!#47.tmp
- %User Temp%\~!#48.tmp
- %User Temp%\~!#49.tmp
- %User Temp%\~!#4A.tmp
- %User Temp%\~!#4B.tmp
- %User Temp%\~!#4C.tmp
- %User Temp%\~!#4D.tmp
- %User Temp%\~!#4E.tmp
- %User Temp%\~!#4F.tmp
- %User Temp%\~!#50.tmp
- %User Temp%\~!#51.tmp
- %User Temp%\~!#52.tmp
- %User Temp%\~!#53.tmp
- %User Temp%\~!#54.tmp
- %User Temp%\~!#55.tmp
- %User Temp%\~!#56.tmp
- %User Temp%\~!#57.tmp
- %User Temp%\~!#58.tmp
- %User Temp%\~!#59.tmp
- %User Temp%\~!#5A.tmp
- %User Temp%\~!#5B.tmp
- %User Temp%\~!#5C.tmp
- %User Temp%\~!#5D.tmp
- %User Temp%\~!#5E.tmp
- %User Temp%\~!#5F.tmp
- %User Temp%\~!#60.tmp
- %User Temp%\~!#61.tmp
- %User Temp%\~!#62.tmp
- %User Temp%\~!#63.tmp
- %User Temp%\~!#64.tmp
- %User Temp%\~!#65.tmp
- %User Temp%\~!#66.tmp
- %User Temp%\~!#67.tmp
- %User Temp%\~!#68.tmp
- %User Temp%\~!#69.tmp
- %User Temp%\~!#6A.tmp
- %User Temp%\~!#6B.tmp
- %User Temp%\~!#6C.tmp
- %User Temp%\~!#6D.tmp
- %User Temp%\~!#6E.tmp
- %User Temp%\~!#6F.tmp
- %User Temp%\~!#70.tmp
- %User Temp%\~!#71.tmp
- %User Temp%\~!#72.tmp
- %User Temp%\~!#73.tmp
- %User Temp%\~!#74.tmp
- %User Temp%\~!#75.tmp
- %User Temp%\~!#76.tmp
- %User Temp%\~!#77.tmp
- %Temp%\gnh1k0rc.TMP
Step 4
Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como TROJ_KRYPTIK.JOB 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.
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