¿Cómo identificar un controlador de dominio escaneando un montón de direcciones IP?

Question

Estoy buscando una manera de determinar qué direcciones IP actúan como controladores de dominio en mi red de alrededor de 100.000 direcciones IP. El objetivo principal es escanear todas las máquinas y una vez que identifique las máquinas que actúan como controlador de dominio, descubriremos qué usuarios están conectados a ellas. No puedo ejecutar ninguna consulta WMI a ninguna de las direcciones IP. Todo lo que puedo hacer es escanear mi red completa. Entonces, ¿hay algún factor distintivo en una máquina/dirección IP que tiene un controlador de dominio y una estación de trabajo normal o una estación de trabajo miembro no tiene? Gracias

Answer 1

Todos los controladores de dominio escuchan en el puerto 389, por lo que puede usar NMap para escanear un rango de direcciones con el script ldap-rootdse.

nmap -p 389 -T4 -A -v --script ldap-rootdse nnn.nnn.nnn.nnn/nn

El resultado de un controlador de dominio es muy distintivo.

PORT    STATE SERVICE VERSION
389/tcp open  ldap    Microsoft Windows Active Directory LDAP (Domain: contoso.com, Site: CONTOSO-LASite)
| ldap-rootdse: 
| LDAP Results
|   <ROOT>
|       currentTime: 20180911130405.0Z
|       subschemaSubentry: CN=Aggregate,CN=Schema,CN=Configuration,DC=contoso,DC=com
|       dsServiceName: CN=NTDS Settings,CN=CONTOSOLADC1,CN=Servers,CN=CONTOSO-LASite,CN=Sites,CN=Configuration,DC=contoso,DC=com
|       namingContexts: DC=contoso,DC=com
|       namingContexts: CN=Configuration,DC=contoso,DC=com
|       namingContexts: CN=Schema,CN=Configuration,DC=contoso,DC=com
|       namingContexts: DC=DomainDnsZones,DC=contoso,DC=com
|       namingContexts: DC=ForestDnsZones,DC=contoso,DC=com
|       defaultNamingContext: DC=contoso,DC=com
|       schemaNamingContext: CN=Schema,CN=Configuration,DC=contoso,DC=com
|       configurationNamingContext: CN=Configuration,DC=contoso,DC=com
|       rootDomainNamingContext: DC=contoso,DC=com
|       supportedControl: 1.2.840.113556.1.4.319
|       supportedControl: 1.2.840.113556.1.4.801
|       supportedControl: 1.2.840.113556.1.4.473
|       supportedControl: 1.2.840.113556.1.4.528
|       supportedControl: 1.2.840.113556.1.4.417
|       supportedControl: 1.2.840.113556.1.4.619
|       supportedControl: 1.2.840.113556.1.4.841
|       supportedControl: 1.2.840.113556.1.4.529
|       supportedControl: 1.2.840.113556.1.4.805
|       supportedControl: 1.2.840.113556.1.4.521
|       supportedControl: 1.2.840.113556.1.4.970
|       supportedControl: 1.2.840.113556.1.4.1338
|       supportedControl: 1.2.840.113556.1.4.474
|       supportedControl: 1.2.840.113556.1.4.1339
|       supportedControl: 1.2.840.113556.1.4.1340
|       supportedControl: 1.2.840.113556.1.4.1413
|       supportedControl: 2.16.840.1.113730.3.4.9
|       supportedControl: 2.16.840.1.113730.3.4.10
|       supportedControl: 1.2.840.113556.1.4.1504
|       supportedControl: 1.2.840.113556.1.4.1852
|       supportedControl: 1.2.840.113556.1.4.802
|       supportedControl: 1.2.840.113556.1.4.1907
|       supportedControl: 1.2.840.113556.1.4.1948
|       supportedControl: 1.2.840.113556.1.4.1974
|       supportedControl: 1.2.840.113556.1.4.1341
|       supportedControl: 1.2.840.113556.1.4.2026
|       supportedControl: 1.2.840.113556.1.4.2064
|       supportedControl: 1.2.840.113556.1.4.2065
|       supportedControl: 1.2.840.113556.1.4.2066
|       supportedControl: 1.2.840.113556.1.4.2090
|       supportedControl: 1.2.840.113556.1.4.2205
|       supportedControl: 1.2.840.113556.1.4.2204
|       supportedControl: 1.2.840.113556.1.4.2206
|       supportedControl: 1.2.840.113556.1.4.2211
|       supportedControl: 1.2.840.113556.1.4.2239
|       supportedControl: 1.2.840.113556.1.4.2255
|       supportedControl: 1.2.840.113556.1.4.2256
|       supportedControl: 1.2.840.113556.1.4.2309
|       supportedLDAPVersion: 3
|       supportedLDAPVersion: 2
|       supportedLDAPPolicies: MaxPoolThreads
|       supportedLDAPPolicies: MaxPercentDirSyncRequests
|       supportedLDAPPolicies: MaxDatagramRecv
|       supportedLDAPPolicies: MaxReceiveBuffer
|       supportedLDAPPolicies: InitRecvTimeout
|       supportedLDAPPolicies: MaxConnections
|       supportedLDAPPolicies: MaxConnIdleTime
|       supportedLDAPPolicies: MaxPageSize
|       supportedLDAPPolicies: MaxBatchReturnMessages
|       supportedLDAPPolicies: MaxQueryDuration
|       supportedLDAPPolicies: MaxDirSyncDuration
|       supportedLDAPPolicies: MaxTempTableSize
|       supportedLDAPPolicies: MaxResultSetSize
|       supportedLDAPPolicies: MinResultSets
|       supportedLDAPPolicies: MaxResultSetsPerConn
|       supportedLDAPPolicies: MaxNotificationPerConn
|       supportedLDAPPolicies: MaxValRange
|       supportedLDAPPolicies: MaxValRangeTransitive
|       supportedLDAPPolicies: ThreadMemoryLimit
|       supportedLDAPPolicies: SystemMemoryLimitPercent
|       highestCommittedUSN: 3684288
|       supportedSASLMechanisms: GSSAPI
|       supportedSASLMechanisms: GSS-SPNEGO
|       supportedSASLMechanisms: EXTERNAL
|       supportedSASLMechanisms: DIGEST-MD5
|       dnsHostName: CONTOSOLADC1.contoso.com
|       ldapServiceName: contoso.com:[email protected]
|       serverName: CN=CONTOSOLADC1,CN=Servers,CN=CONTOSO-LASite,CN=Sites,CN=Configuration,DC=contoso,DC=com
|       supportedCapabilities: 1.2.840.113556.1.4.800
|       supportedCapabilities: 1.2.840.113556.1.4.1670
|       supportedCapabilities: 1.2.840.113556.1.4.1791
|       supportedCapabilities: 1.2.840.113556.1.4.1935
|       supportedCapabilities: 1.2.840.113556.1.4.2080
|       supportedCapabilities: 1.2.840.113556.1.4.2237
|       isSynchronized: TRUE
|       isGlobalCatalogReady: TRUE
|       domainFunctionality: 4
|       forestFunctionality: 4
|_      domainControllerFunctionality: 7