DDoS:Win32/Nitol.B [non_writable_container] (Microsoft); GenericRXIR-VM!1C587328893D (McAfee); Mal/Behav-004 (Sophos); BehavesLike.Win32.Malware.ssc (mx-v) (Sunbelt)

 PLATFORM:

Windows

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

  • Threat Type:
    Trojan

  • Destructiveness:
    No

  • Encrypted:
     

  • In the wild::
    Yes

  OVERVIEW

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 archivos para impedir la ejecución correcta de programas y aplicaciones.

  TECHNICAL DETAILS

File size: 8,704 bytes
File type: EXE
Memory resident: Yes
INITIAL SAMPLES RECEIVED DATE: 20 апреля 2020

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

Agrega los procesos siguientes:

  • "%System%\cmd.exe" /c del %User Temp%\C4E21A~1.EXE > nul
  • %System%\msdtc.exe
  • %System%\SearchIndexer.exe /Embedding
  • %Windows%\SysWOW64\dbgndyc.exe
  • %System%\vssvc.exe
  • %Windows%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
  • %System%\svchost.exe -k LocalServiceAndNoImpersonation
  • %Windows%\Microsoft.NET\Framework64\v4.0.30319\mscorsvw.exe
  • %System%\sppsvc.exe
  • "%System Root%\Program Files\Windows Media Player\wmpnetwk.exe"
  • %System%\svchost.exe -k WerSvcGroup
  • %System%\svchost.exe -k netsvcs
  • %System%\svchost.exe -k DcomLaunch
  • "%System%\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe1_ Global\UsGthrCtrlFltPipeMssGthrPipe1 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "%All Users Profile%\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon"
  • "%System%\SearchFilterHost.exe" 0 560 564 572 65536 568
  • "%System%\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe_S-1-5-21-2407829820-1079796033-203259571-5002_ Global\UsGthrCtrlFltPipeMssGthrPipe_S-1-5-21-2407829820-1079796033-203259571-5002 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "%All Users Profile%\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon" "1"
  • "%System%\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe3_ Global\UsGthrCtrlFltPipeMssGthrPipe3 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "%All Users Profile%\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon"
  • %System%\WerFault.exe -u -p 2360 -s 1260
  • %System%\WerFault.exe -u -p 504 -s 212
  • %System%\WerFault.exe -u -p 980 -s 2732
  • %System%\WerFault.exe -u -p 2308 -s 52
  • %System%\WerFault.exe -u -p 704 -s 1512
  • %System%\WerFault.exe -u -p 704 -s 1516
  • %System%\WerFault.exe -u -p 704 -s 1508
  • %System%\WerFault.exe -u -p 1712 -s 52
  • %System%\WerFault.exe -u -p 996 -s 172
  • %System%\WerFault.exe -u -p 996 -s 168
  • %System%\WerFault.exe -u -p 996 -s 184
  • %System%\WerFault.exe -u -p 916 -s 204

(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).

. %Windows% es la carpeta de Windows, que suele estar en C:\Windows o C:\WINNT).

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

)

Crea las carpetas siguientes:

  • %All Users Profile%\Microsoft
  • %AppDataLocal%\Microsoft\Windows\Burn\Burn
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex
  • %All Users Profile%\Microsoft\Search\Data\Temp\usgthrsvc
  • %All Users Profile%\Microsoft\Search\Data
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer\CiFiles
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\SecStore
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex
  • %Windows%\ServiceProfiles\NetworkService\AppData\Local\Microsoft
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\PropMap
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs
  • %All Users Profile%\Microsoft\Search\Data\Temp
  • %All Users Profile%\Microsoft\Search\Data\Applications
  • %All Users Profile%\Microsoft\Search

(Nota: %Windows% es la carpeta de Windows, que suele estar en C:\Windows o C:\WINNT).

)

Técnica de inicio automático

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

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Jklmn Pqrstuvwxy Bc
ImagePath = "%System%\dbgndyc.exe"

Otras modificaciones del sistema

Modifica los archivos siguientes:

  • %Windows%\DtcInstall.log
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSS.chk
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSS.log
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Windows.edb

(Nota: %Windows% es la carpeta de Windows, que suele estar en C:\Windows o C:\WINNT).

)

Elimina los archivos siguientes:

  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSStmp.log
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\res2.log
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.21.gthr
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\res1.log
  • %Windows%\LastGood.Tmp

(Nota: %Windows% es la carpeta de Windows, que suele estar en C:\Windows o C:\WINNT).

)

Agrega las siguientes entradas de registro:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Jklmn Pqrstuvwxy Bc
Description = "Jklmnopqrst Vwxyabc Efghijk Mnopqrst Vw"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\IKEEXT
Type = "16"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gathering Manager
UseSystemTemp = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex
SystemLcid = "1033"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StartPages\0
CrawlControl = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StartPages\1
CrawlControl = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StartPages\3
CrawlControl = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StartPages\4
CrawlControl = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Extensions
IncludedExtensions = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\Csc\
0
ProgIdHandler = "Search.CscHandler.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\File\
0
ProgIdHandler = "Search.FileHandler.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\StickyNotes\
0
ProgIdHandler = "Search.StickyNotesHandler.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StreamLog
StreamLogCount = "5"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StreamLog
CurrentStreamLog = "27"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\UsnNotifier\Windows\
Catalogs\SystemIndex
{6FC5ADC5-B8BB-11E6-A55B-806E6F6E6963} = "97278496"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\VolumeInfoCache\%System Root%
DriveType = "3"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\VolumeInfoCache\%System Root%
VolumeLabel = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Tracing\EventThrottleState
000003eb = "\x01\x00\x00\x00_IF^\x06\x0c\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Crawls\81
CrawlType = "2"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Crawls\81
InProgress = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Crawls\81
DoneAddingCrawlSeeds = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Crawls\81
IsCatalogLevel = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Crawls\81
LogStartAddId = "65535"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex
NewCrawlNumber = "82"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StartPages\3
CrawlNumberInProgress = "81"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Crawls\81
InProgress = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Crawls\81
LogStartAddId = "3"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StartPages\3
LastStartCrawlTime = "\xdcZ\xe0\xe9\xc2\xb8\xd5\x01"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Crawls\81
DoneAddingCrawlSeeds = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
pkm:catalog:LastCatalogCrawlEndTime = "\x861\xb9I\xc6\xb8\xd5\x01"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
pkm:catalog:LastCatalogCrawlId = "81"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
pkm:catalog:LastCatalogCrawlSuccesses = "2"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
pkm:catalog:LastCatalogCrawlModified = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
pkm:catalog:LastCatalogCrawlErrors = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
pkm:catalog:LastCatalogCrawlWarnings = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
pkm:catalog:LastCatalogCrawlExcludes = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
pkm:catalog:LastCatalogCrawlKBytes = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
pkm:catalog:LastCatalogCrawlRetries = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StartPages\3
LastCrawlTime = "\x861\xb9I\xc6\xb8\xd5\x01"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StartPages\3
LastCrawlType = "2"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\CatalogNames\Windows\
SystemIndex
IsBuildDone = "4294967295"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\StartPages\3
CrawlNumberInProgress = "4294967295"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
CD Burning\Drives\Volume{{GUID}}
Drive Type = "16"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
CD Burning\Drives\Volume{{GUID}}
IsImapiDataBurnSupported = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
CD Burning\StagingInfo\Volume{{GUID}}
DriveNumber = "3"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
CD Burning\StagingInfo\Volume{{GUID}}
StagingPath = "%AppDataLocal%\Microsoft\Windows\Burn\Burn"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
CD Burning\StagingInfo\Volume{{GUID}}
Active = "1"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Jklmn Pqrstuvwxy Bc
DisplayName = "Jklmnopq Stuvw Yabcdefg Ijklm"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Jklmn Pqrstuvwxy Bc
Start = "SERVICE_AUTO_START"

Modifica las siguientes entradas de registro:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Browser
Type = "16"

(Note: The default value data of the said registry entry is 20.)

Elimina las siguientes claves de registro:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Tracing\EventThrottleState\
000003eb

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Tracing\EventThrottleLastReported\
000003eb

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Tracing\EventThrottleState\
000003f5

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Tracing\EventThrottleLastReported\
000003f5

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\Windows Search\Preferences\
DataDirectory

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\Csc\
Included

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\File\
Included

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\IEHistory\
Included

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\IERSS\
Included

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\Mapi\
Included

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\OneIndex\
Included

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Search\Gather\Windows\
SystemIndex\Protocols\StickyNotes\
Included

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
CD Burning\StagingInfo\Volume{{GUID}}\
DriveNumber

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
CD Burning\CD Recorder Drive

Rutina de infiltración

Infiltra los archivos siguientes:

  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.26.gthr
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010004.wid
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.25.gthr
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\INDEX.002
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010007.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\INDEX.001
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Windows.edb
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.25.Crwl
  • %All Users Profile%\Microsoft\Windows\DRM\v3ks.sec
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\0001000B.ci
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010006.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010008.wid
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSS.chk
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\CiAD0001.000
  • %AppDataLocal%\Microsoft\Media Player\CurrentDatabase_372.wmdb
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\PropMap\CiPT0000.000
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\0001000A.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010005.wid
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\SecStore\CiST0000.000
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.26.Crwl
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSS.log
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\0001000B.dir
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\INDEX.000
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010009.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010001.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010003.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010002.wid
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\tmp.edb
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\0001000B.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010001.wsb
  • %All Users Profile%\Microsoft\Windows\DRM\drmstore.hds
  • %System%\dbgndyc.exe

(Nota: %System% es la carpeta del sistema de Windows, que en el caso de Windows 98 y ME suele estar en C:\Windows\System, en el caso de Windows NT y 2000 en C:\WINNT\System32 y en el caso de Windows 2000(32-bit), XP, Server 2003(32-bit), Vista, 7, 8, 8.1, 2008(64-bit), 2012(64bit) y 10(64-bit) en C:\Windows\System32).

)

Otros detalles

It connects to the following possibly malicious URL:

  • {BLOCKED}5.208.165

  SOLUTION

Minimum scan engine: 9.850

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

Identificar y terminar los archivos detectados como Ddos.Win32.NITOL.THCAOBO

[ learnMore ]
  1. Para los usuarios de Windows 98 y ME, puede que el Administrador de tareas de Windows no muestre todos los procesos en ejecución. En tal caso, utilice un visor de procesos de una tercera parte (preferiblemente, el Explorador de procesos) para terminar el archivo de malware/grayware/spyware. Puede descargar la herramienta en cuestión aquí.
  2. Si el archivo detectado aparece en el Administrador de tareas o en el Explorador de procesos, pero no puede eliminarlo, reinicie el equipo en modo seguro. Para ello, consulte este enlace para obtener todos los pasos necesarios.
  3. Si el archivo detectado no se muestra en el Administrador de tareas o el Explorador de procesos, prosiga con los pasos que se indican a continuación.

Step 3

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\SYSTEM\CurrentControlSet\services\Jklmn Pqrstuvwxy Bc
    • Description = "Jklmnopqrst Vwxyabc Efghijk Mnopqrst Vw"
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\IKEEXT
    • Type = "16"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gathering Manager
    • UseSystemTemp = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex
    • SystemLcid = "1033"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StartPages\0
    • CrawlControl = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StartPages\1
    • CrawlControl = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StartPages\3
    • CrawlControl = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StartPages\4
    • CrawlControl = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Extensions
    • IncludedExtensions = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\Csc\0
    • ProgIdHandler = "Search.CscHandler.1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\File\0
    • ProgIdHandler = "Search.FileHandler.1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\StickyNotes\0
    • ProgIdHandler = "Search.StickyNotesHandler.1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StreamLog
    • StreamLogCount = "5"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StreamLog
    • CurrentStreamLog = "27"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\UsnNotifier\Windows\Catalogs\SystemIndex
    • {6FC5ADC5-B8BB-11E6-A55B-806E6F6E6963} = "97278496"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\VolumeInfoCache\%System Root%
    • DriveType = "3"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\VolumeInfoCache\%System Root%
    • VolumeLabel = ""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Tracing\EventThrottleState
    • 000003eb = "\x01\x00\x00\x00_IF^\x06\x0c\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Crawls\81
    • CrawlType = "2"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Crawls\81
    • InProgress = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Crawls\81
    • DoneAddingCrawlSeeds = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Crawls\81
    • IsCatalogLevel = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Crawls\81
    • LogStartAddId = "65535"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex
    • NewCrawlNumber = "82"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StartPages\3
    • CrawlNumberInProgress = "81"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Crawls\81
    • InProgress = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Crawls\81
    • LogStartAddId = "3"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StartPages\3
    • LastStartCrawlTime = "\xdcZ\xe0\xe9\xc2\xb8\xd5\x01"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Crawls\81
    • DoneAddingCrawlSeeds = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • pkm:catalog:LastCatalogCrawlEndTime = "\x861\xb9I\xc6\xb8\xd5\x01"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • pkm:catalog:LastCatalogCrawlId = "81"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • pkm:catalog:LastCatalogCrawlSuccesses = "2"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • pkm:catalog:LastCatalogCrawlModified = "1"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • pkm:catalog:LastCatalogCrawlErrors = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • pkm:catalog:LastCatalogCrawlWarnings = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • pkm:catalog:LastCatalogCrawlExcludes = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • pkm:catalog:LastCatalogCrawlKBytes = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • pkm:catalog:LastCatalogCrawlRetries = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StartPages\3
    • LastCrawlTime = "\x861\xb9I\xc6\xb8\xd5\x01"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StartPages\3
    • LastCrawlType = "2"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\CatalogNames\Windows\SystemIndex
    • IsBuildDone = "4294967295"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\StartPages\3
    • CrawlNumberInProgress = "4294967295"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CD Burning\Drives\Volume{{GUID}}
    • Drive Type = "16"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CD Burning\Drives\Volume{{GUID}}
    • IsImapiDataBurnSupported = "1"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CD Burning\StagingInfo\Volume{{GUID}}
    • DriveNumber = "3"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CD Burning\StagingInfo\Volume{{GUID}}
    • StagingPath = "%AppDataLocal%\Microsoft\Windows\Burn\Burn"
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CD Burning\StagingInfo\Volume{{GUID}}
    • Active = "1"
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Jklmn Pqrstuvwxy Bc
    • DisplayName = "Jklmnopq Stuvw Yabcdefg Ijklm"
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Jklmn Pqrstuvwxy Bc
    • Start = "SERVICE_AUTO_START"

Step 4

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.

  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Browser
    • From: Type = "16"
      To: Type = ""20""

Step 5

Buscar y eliminar estos archivos

[ 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.
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.26.gthr
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010004.wid
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.25.gthr
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\INDEX.002
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010007.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\INDEX.001
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Windows.edb
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.25.Crwl
  • %All Users Profile%\Microsoft\Windows\DRM\v3ks.sec
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\0001000B.ci
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010006.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010008.wid
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSS.chk
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\CiAD0001.000
  • %AppDataLocal%\Microsoft\Media Player\CurrentDatabase_372.wmdb
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\PropMap\CiPT0000.000
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\0001000A.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010005.wid
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\SecStore\CiST0000.000
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.26.Crwl
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSS.log
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\0001000B.dir
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\INDEX.000
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010009.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010001.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010003.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010002.wid
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\tmp.edb
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\0001000B.wid
  • %All Users Profile%\microsoft\Search\Data\applications\Windows\Projects\systemindex\Indexer\CiFiles\00010001.wsb
  • %All Users Profile%\Microsoft\Windows\DRM\drmstore.hds
  • %System%\dbgndyc.exe

Step 6

Buscar y eliminar estas carpetas

[ learnMore ]
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 todas las carpetas ocultas.
  • %All Users Profile%\Microsoft
  • %AppDataLocal%\Microsoft\Windows\Burn\Burn
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex
  • %All Users Profile%\Microsoft\Search\Data\Temp\usgthrsvc
  • %All Users Profile%\Microsoft\Search\Data
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer\CiFiles
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\SecStore
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex
  • %Windows%\ServiceProfiles\NetworkService\AppData\Local\Microsoft
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\Indexer
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\PropMap
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs
  • %All Users Profile%\Microsoft\Search\Data\Temp
  • %All Users Profile%\Microsoft\Search\Data\Applications
  • %All Users Profile%\Microsoft\Search

Step 7

Explorar el equipo con su producto de Trend Micro para eliminar los archivos detectados como Ddos.Win32.NITOL.THCAOBO 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

Restaurar este archivo a partir de una copia de seguridad Solo se pueden restaurar los archivos relacionados con Microsoft. En caso de que este malware/grayware/spyware también haya eliminado archivos relativos a programas que no sean de Microsoft, vuelva a instalar los programas en cuestión en el equipo.

  • %Windows%\DtcInstall.log
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSS.chk
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSS.log
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\Windows.edb

Step 9

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\MSStmp.log
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\res2.log
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\GatherLogs\SystemIndex\SystemIndex.21.gthr
  • %All Users Profile%\Microsoft\Search\Data\Applications\Windows\res1.log
  • %Windows%\LastGood.Tmp

Step 10

Restore these deleted registry keys/values from backup

*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Tracing\EventThrottleState
    • 000003eb
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Tracing\EventThrottleLastReported
    • 000003eb
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Tracing\EventThrottleState
    • 000003f5
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Tracing\EventThrottleLastReported
    • 000003f5
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Windows Search\Preferences
    • DataDirectory
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\Csc
    • Included
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\File
    • Included
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\IEHistory
    • Included
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\IERSS
    • Included
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\Mapi
    • Included
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\OneIndex
    • Included
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\StickyNotes
    • Included
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CD Burning\StagingInfo\Volume{{GUID}}
    • DriveNumber
  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\CD Burning
    • CD Recorder Drive


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