Informazioni di riferimento sul log SIEM Microsoft Defender per identità

Defender per identità può inoltrare gli eventi di avviso di sicurezza e di avviso di integrità al sistema SIEM. Gli avvisi e gli eventi sono in formato CEF. Questo articolo di riferimento fornisce esempi dei log inviati al sistema SIEM.

Esempi di avvisi di sicurezza di Defender per identità in formato CEF

I campi seguenti e i relativi valori vengono inoltrati al siem:

Dettagli Spiegazione
Avvio Ora di avvio dell'avviso
suser Account (in genere l'account utente) coinvolto nell'avviso
shost Account (in genere l'account del computer) coinvolto nell'avviso
risultato Se rilevante, esito positivo o negativo dell'attività sospetta nell'avviso
msg Descrizione dell'avviso
Cnt Per gli avvisi con un conteggio del numero di volte in cui si è verificata l'attività (ad esempio, la forza bruta ha una quantità di password indovinate)
applicazione Protocollo usato in questo avviso
externalId ID evento Defender per identità scrive nel registro eventi che corrisponde a ogni tipo di avviso. Quando si inoltrano avvisi ad app di Microsoft Defender per il cloud, questo campo viene popolato con l'ID avviso Defender per il cloud App corrispondente.
cs#label Stringhe cliente consentite da CEF, dove cs#label è il nome del nuovo campo
Cs# Stringhe cliente consentite da CEF, dove cs# è il valore.
  • Ad esempio: cs1Label=url cs1=https\://192.168.0.220/suspiciousActivity/5909ae198ca1ec04d05e65fa
    Il campo cs1 è l'URL dell'avviso.

  • Ad esempio: cs2Label=trigger cs2=new
    Il campo cs2 identifica se l'avviso è nuovo o aggiornato.

  • Ad esempio: cs3Label=shostfqdn cs3=client1.contoso.com il campo cs3 identifica il nome di dominio completo del nome computer di origine.

Nota

Se si prevede di creare log SIEM di automazione o script per Defender per identità, è consigliabile usare il campo externalId per identificare il tipo di avviso anziché usare il nome dell'avviso per questo scopo. I nomi degli avvisi possono essere occasionalmente modificati, mentre l'externalId di ogni avviso è permanente. Per un elenco di ID esterni, vedere Mapping dei nomi degli avvisi di sicurezza e ID esterni univoci.

Esempi di log

Gli esempi di log sono conformi a RFC 5424, ma Defender per identità supporta anche RFC 3164.

Nota

L'elenco seguente è un esempio di log inviati a un siem. Per un elenco completo dei dettagli dell'avviso, vedere Mapping dei nomi degli avvisi di sicurezza e ID esterni univoci.

Priorità:

  • 3=Bassa
  • 5=Medio
  • 10=Alto

Ricognizione dell'enumerazione account

02-21-2018 16:19:35 Auth.Warning 192.168.0.220 1 2018-02-21T14:19:27.540731+00:00 CENTER CEF 6076 AccountEnumerationSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|AccountEnumerationSecurityAlert|Reconnaissance using account enumeration|5|start=2018-02-21T14:19:02.6045416Z app=Kerberos shost=CLIENT1 suser=LMaldonado msg=Suspicious account enumeration activity using the Kerberos protocol, originating from CLIENT1, was observed and successfully guessed Lamon Maldonado (Software Engineer). externalId=2003 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/eb6a35da-ff7f-4ab5-a1b5-a07529a89e6d cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Esfiltrazione di dati su SMB

12-19-2018 14:17:46 Auth.Error 127.0.0.1 1 2018-12-19T12:17:34.645993+00:00 DC1 CEF 3288 SmbDataExfiltrationSecurityAlert |Microsoft|Azure ATP|2.60.0.0|SmbDataExfiltrationSecurityAlert|[PREVIEW] Data exfiltration over SMB|10|start=2018-12-19T12:14:12.4932821Z app=Smb shost=CLIENT1 msg=Eugene Jenkins (Software Engineer) on DC2 copied suspicious files to CLIENT1. externalId=2030 cs1Label=url cs1=https\://contoso-corp.atp.azure.com:13000/securityAlert/3ca2ec9d-2c67-44cc-a2d6-391716611bb6 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Attività di honeytoken

02-21-2018 16:20:36 Auth.Warning 192.168.0.220 1 2018-02-21T14:20:34.106162+00:00 CENTER CEF 6076 HoneytokenActivitySecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|HoneytokenActivitySecurityAlert|Honeytoken activity|5|start=2018-02-21T14:20:26.6705617Z app=Kerberos suser=honey msg=The following activities were performed by honey:\r\nLogged in to CLIENT2 via DC1. externalId=2014 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/9249fe9a-c883-46dd-a4da-2a1fca5f211c cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Richiesta dannosa della chiave master dell'API protezione dati

10-29-2018 11:22:04 Auth.Error 192.168.0.202 1 2018-10-29T09:22:00.350864+00:00 DC3 CEF 3908 RetrieveDataProtectionBackupKeyS |Microsoft|Azure ATP|2.52.5704.46184|RetrieveDataProtectionBackupKeySecurityAlert|Malicious Data Protection Private Information Request|10|start=2018-10-29T09:19:45.6307993Z app=LsaRpc shost=CLIENT1 msg=user1 performed 1 successful attempts from CLIENT1 to retrieve DPAPI domain backup key from DC1. externalId=2020 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/2f5717cb-2434-4d54-8af4-b2c6d14bc15c cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Ricognizione con mapping di rete (DNS)

10-29-2018 11:20:02 Auth.Warning 192.168.0.202 1 2018-10-29T09:19:59.056894+00:00 DC3 CEF 3908 DnsReconnaissanceSecurityAlert |Microsoft|Azure ATP|2.52.5704.46184|DnsReconnaissanceSecurityAlert|Reconnaissance using DNS|5|start=2018-10-29T09:19:43.5033765Z app=Dns shost=CLIENT1 msg=Suspicious DNS activity was observed, originating from CLIENT1 (which is not a DNS server) against DC1. externalId=2007 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/23937d33-ff71-484d-be0a-3c417fe573ce cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Ricognizione tramite query di servizi directory

02-21-2018 16:22:08 Auth.Warning 192.168.0.220 1 2018-02-21T14:21:54.267658+00:00 CENTER CEF 6076 SamrReconnaissanceSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|SamrReconnaissanceSecurityAlert| Reconnaissance using directory services enumeration |5|start=2018-02-21T14:19:41.9912772Z app= Samr shost=CLIENT1 suser=user1 outcome=Success msg= The following directory services enumerations using SAMR protocol were attempted against DC1 from CLIENT1:\r\nSuccessful enumeration of all groups in domain1.test.local by user1. externalId=2019 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/f295029a-ffae-408b-9dd0-55424c81eac0 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Tentativo di esecuzione del codice remoto

10-29-2018 11:22:04 Auth.Warning 192.168.0.202 1 2018-10-29T09:22:00.100856+00:00 DC3 CEF 3908 RemoteExecutionSecurityAlert |Microsoft|Azure ATP|2.52.5704.46184|RemoteExecutionSecurityAlert|Remote code execution attempt|5|start=2018-10-29T09:19:45.0552367Z shost=CLIENT1 msg=The following remote code execution attempts were performed on DC1 from CLIENT1:\r\nSuccessful remote scheduling of one or more tasks by user1.\r\nFailed remote scheduling of one or more tasks by user1.\r\nSuccessful remote execution of one or more WMI methods by user1. externalId=2019 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/f063c778-830c-4e9f-98d1-bc6c11c94e11 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Tentativo di esecuzione del codice remoto su DNS

1-17-2019 08:24:54 Auth.Warning 192.168.0.202 1 2019-01-17T08:24:54.100856+00:00 DC3 CEF 3908 DnsRemoteCodeExecutionSecurityAlert |Microsoft|Azure ATP|2.63.0.0|DnsRemoteCodeExecutionSecurityAlert|[PREVIEW] Remote code execution over DNS|5|start=2019-01-17T08:24:54.5293800Z app=Dns shost=CLIENT1 msg=An actor attempted to run commands remotely on CLIENT1 from DC1, over DNS protocol. externalId=2036 cs1Label=url cs1=https\:////contoso-corp.atp.azure.com:13000/securityAlert/591f9769-d904-40b1-89fa-c307c2ca814f cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Ricognizione dell'entità di sicurezza (LDAP)

02-18-2019 16:48:08 Auth.Warning 127.0.0.1 1 2019-02-18T14:48:02.912264+00:00 DC1 CEF 4656 LdapSearchReconnaissanceSecurity |Microsoft|Azure ATP|2.66.0.0|LdapSearchReconnaissanceSecurityAlert|[PREVIEW] Reconnaissance using LDAP Queries|5|start=2019-02-18T14:46:29.4644276Z app=LdapSearch shost=CLIENT1 msg=An actor on CLIENT1 sent suspicious LDAP queries to DC1, searching for 4 types of enumeration and Server Operators (Members can administer domain servers) in 2 domains externalId=2038 cs1Label=url cs1=https\://contoso-corp.atp.azure..com:13000/securityAlert/81ea99c4-ce1f-4581-ac8f-7440fbed7cd0 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto attacco di forza bruta (LDAP)

02-21-2018 16:20:21 Auth.Warning 192.168.0.220 1 2018-02-21T14:20:06.156238+00:00 CENTER CEF 6076 LdapBruteForceSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|LdapBruteForceSecurityAlert|Brute force attack using LDAP simple bind|5|start=2018-02-21T14:19:41.7422810Z app=Ldap suser=Wofford Thurston shost=CLIENT1 msg=A brute force attack using the Ldap protocol was attempted on Wofford Thurston (Software Engineer) from CLIENT1 (100 guess attempts). cnt=100 externalId=2004 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/57b8ac96-7907-4971-9b27-ec77ad8c029a cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto attacco di forza bruta (Kerberos, NTLM)

10-29-2018 11:20:47 Auth.Warning 192.168.0.202 1 2018-10-29T09:20:44.478827+00:00 DC3 CEF 3908 BruteForceSecurityAlert |Microsoft|Azure ATP|2.52.5704.46184|BruteForceSecurityAlert|Suspicious authentication failures|5|start=2018-10-29T09:19:44.9512286Z app=Kerberos shost=CLIENT1 msg=Suspicious authentication failures indicating a potential brute-force attack were detected from CLIENT1. externalId=2023 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/85042c8e-27fa-49b3-8667-dabc1aa31580 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto attacco DCSync (replica di servizi directory)

02-21-2018 16:20:06 Auth.Warning 192.168.0.220 1 2018-02-21T14:19:54.254930+00:00 CENTER CEF 6076 MaliciousServiceCreationSecurity |Microsoft|Azure ATP|2.22.4228.22540|MaliciousServiceCreationSecurityAlert|Suspicious service creation|5|start=2018-02-21T14:19:41.7897808Z app=ServiceInstalledEvent shost=CLIENT1 msg=user1 created MaliciousService in order to execute potentially malicious commands on CLIENT1. externalId=2026 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/179229b6-b791-4895-b5aa-fdf3747a325c cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto utilizzo di Golden Ticket (downgrade della crittografia)

10-29-2018 11:25:07 Auth.Warning 192.168.0.202 1 2018-10-29T09:25:01.007701+00:00 DC3 CEF 3908 GoldenTicketEncryptionDowngradeS |Microsoft|Azure ATP|2.52.5704.46184|GoldenTicketEncryptionDowngradeSecurityAlert|Encryption downgrade activity (potential golden ticket attack)|5|start=2018-10-29T09:37:49.0849130Z app=Kerberos msg=W10-000007-Lap used a weaker encryption method (RC4), in the Kerberos service request (TGS_REQ), from W10-000007-Lap, to access host/domain1.test.local. externalId=2009 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/f01f8403-88b2-437e-b4ad-d72485fe05ac cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto utilizzo di Golden Ticket (account inesistente)

07-01-2018 14:28:49 Auth.Error 192.168.0.100 1 2018-07-01T11:28:35.546638+00:00 CENTER CEF 38768 ForgedPrincipalSecurityAlert |Microsoft|Azure ATP|2.39.0.0|ForgedPrincipalSecurityAlert|Kerberos Golden Ticket - non-existing account|10|start=2018-07-01T09:48:31.2567987Z app=Kerberos suser=domain1.test.local\fake msg=domain1.test.local\fake, which does not exist in Active Directory, used a Kerberos ticket. The ticket was detected from 2 computers to access 3 resources. This may indicate a potential Golden Ticket attack. externalId=2027 cs1Label=url cs1=https\://contoso-corp.atp.azure.com:13000/securityAlert/98f050d4-9134-429c-8e54-d8eeb19849c4 cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto utilizzo di Golden Ticket (anomalia del ticket)

2018-11-18T10:46:23.346946+00:00 MAXIMG-7050 CEF 24284 GoldenTicketSizeAnomalySecurityA 0|Microsoft|Azure ATP|2.56.0.0|GoldenTicketSizeAnomalySecurityAlert|[PREVIEW] Suspected Golden Ticket usage (ticket anomaly)|10|start=2018-11-18T10:44:12.9317797Z app=Kerberos shost=CLIENT2 suser=RFosdyke msg=Renzo Fosdyke (Software Engineer) used a suspicious Kerberos ticket from CLIENT2 to access ldap/domain1.test.local. externalId=2032 cs1Label=url cs1=https\://contoso-corp.atp.azure.com:13000/securityAlert/63600e03-f423-49bf-a92d-4010e1d52b9f cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto utilizzo di Golden Ticket (anomalia temporale)

02-21-2018 16:22:39 Auth.Error 192.168.0.220 1 2018-02-21T14:22:34.274054+00:00 CENTER CEF 6076 GoldenTicketSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|GoldenTicketSecurityAlert|Kerberos Golden Ticket activity|10|start=2018-02-21T14:19:03.2416152Z app=Kerberos suser=Lanell Campos msg=Suspicious usage of Lanell Campos (Software Engineer)'s Kerberos ticket, indicating a potential Golden Ticket attack, was detected. externalId=2022 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/702c836e-6f49-4479-9892-80e8bccbfac0 cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto utilizzo di Golden Ticket (dati di autorizzazione contraffatti)

10-29-2018 11:22:04 Auth.Error 192.168.0.202 1 2018-10-29T09:21:59.288337+00:00 DC3 CEF 3908 ForgedPacSecurityAlert |Microsoft|Azure ATP|2.52.5704.46184|ForgedPacSecurityAlert|Privilege escalation using forged authorization data|10|start=2018-10-29T09:19:43.6403358Z app=Kerberos suser=user1 msg=user1 failed to escalate privileges against DC1 to host/domain1.test.local from CLIENT1 by using forged authorization data. externalId=2013 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/b698d438-5013-4bca-be0b-f219f8b69108 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto furto di identità (Pass-the-Hash)

02-21-2018 17:04:47 Auth.Error 192.168.0.220 1 2018-02-21T15:04:33.537583+00:00 CENTER CEF 6076 PassTheHashSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|PassTheHashSecurityAlert|Identity theft using Pass-the-Hash attack|10|start=2018-02-21T15:02:22.2577465Z app=Kerberos suser=Eugene Jenkins msg=Eugene Jenkins (Software Engineer)'s hash was stolen from one of the computers previously logged into by Eugene Jenkins (Software Engineer) and used from CLIENT1. externalId=2017 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/511f1487-2915-477d-be2e-04cfba702ccd cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto furto di identità (Pass-the-Ticket)

02-21-2018 17:04:47 Auth.Error 192.168.0.220 1 2018-02-21T15:04:33.537583+00:00 CENTER CEF 6076 PassTheTicketSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|PassTheTicketSecurityAlert|Identity theft using Pass-the-Ticket attack|10|start=2018-02-21T15:02:22.2577465Z app=Kerberos suser=Eugene Jenkins msg=Eugene Jenkins (Software Engineer)'s Kerberos tickets were stolen from Admin-PC to Victim-PC and used to access krbtgt/DOMAIN1.TEST.LOCAL. externalId=2018 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/511f1487-2915-477d-be2e-04cfba702ccd cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetta manomissione dell'autenticazione NTLM

07-17-2019 18:18:44 Auth.Warning 192.168.0.77 1 2019-07-09T15:18:30.967118+00:00 CENTER CEF 7144 AbnormalNtlmSigningSecurityAlert |Microsoft|Azure ATP|2.86.0.0|AbnormalNtlmSigningSecurityAlert|[PREVIEW] Suspected NTLM authentication tampering|5|start=2019-07-09T15:14:57.5280720Z app=Ntlm shost=CLIENT1 msg=2 accounts on CLIENT1 is suspiciously trying to authenticate against 2 computers over NTLM. externalId=2039 cs1Label=url cs1=https\://contoso-corp.atp.azure.com:13000/securityAlert/d4ce6252-2c0f-47f6-a534-47ee8ad983be cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto attacco Over-Pass-the-Hash (downgrade della crittografia)

02-21-2018 16:21:07 Auth.Warning 192.168.0.220 1 2018-02-21T14:20:54.145833+00:00 CENTER CEF 6076 EncryptionDowngradeSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|EncryptionDowngradeSecurityAlert|Encryption downgrade activity|5|start=2018-02-21T14:19:41.8737870Z app=Kerberos msg= The encryption method of the Encrypted_Timestamp field of AS_REQ message from CLIENT1 has been downgraded based on previously learned behavior. This may be a result of a credential theft using Overpass-the-Hash from CLIENT1. externalId=2008 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/6354b9ed-6a39-4f5b-b10e-f51bbee879d2 cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto attacco Skeleton Key (downgrade della crittografia)

02-21-2018 16:21:07 Auth.Warning 192.168.0.220 1 2018-02-21T14:20:54.145833+00:00 CENTER CEF 6076 EncryptionDowngradeSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|EncryptionDowngradeSecurityAlert|Encryption downgrade activity|5|start=2018-02-21T14:19:41.8737870Z app=Kerberos msg=The encryption method of the ETYPE_INFO2 field of KRB_ERR message from CLIENT1 has been downgraded based on previously learned behavior. This may be a result of a Skeleton Key on DC1. externalId=2010 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/6354b9ed-6a39-4f5b-b10e-f51bbee879d2 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Errori di autenticazione sospetti

02-21-2018 16:19:20 Auth.Warning 192.168.0.220 1 2018-02-21T14:19:15.397995+00:00 CENTER CEF 6076 BruteForceSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|BruteForceSecurityAlert|Suspicious authentication failures|5|start=2018-02-21T14:19:03.3831122Z app=Kerberos shost=CLIENT1 msg=Suspicious authentication failures indicating a potential brute-force attack were detected from CLIENT1. externalId=2023 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/fea88fc7-4110-454d-816d-349032474fd6 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Comunicazione sospetta tramite DNS

10-04-2018 14:49:38 Auth.Warning 192.168.0.202 1 2018-10-04T11:49:25.954059+00:00 DC3 CEF 3604 DnsSuspiciousCommunicationSecuri |Microsoft|Azure ATP|2.49.5589.58606|DnsSuspiciousCommunicationSecurityAlert|Suspicious Communication over DNS|5|start=2018-10-04T11:49:11.0822077Z app=DnsEvent dhost= suspiciousdomainname msg=CLIENT1 sent suspicious DNS queries resolving suspiciousdomainname externalId=2031 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/0fc77777-49ca-40b3-a7ba-7644f355539e cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Promozione sospetta del controller di dominio (potenziale attacco DcShadow)

07-12-2018 11:18:07 Auth.Error 192.168.0.200 1 2018-07-12T08:18:06.883880+00:00 DC1 CEF 3868 DirectoryServicesRoguePromotionS |Microsoft|Azure ATP|2.40.0.0|DirectoryServicesRoguePromotionSecurityAlert| **Suspicious domain controller promotion (potential DcShadow attack)**|10|start=2018-07-12T08:17:55.4067092Z app=Ldap shost=CLIENT1 msg=CLIENT1, which is a computer in domain1.test.local, registered as a domain controller on DC1. externalId=2028 cs1Label=url cs1=https\://contoso-corp.atp.azure.com:13000/securityAlert/97c59b43-dc18-44ee-9826-8fd5d03bd53 cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Aggiunte sospette a gruppi sensibili

10-29-2018 11:21:03 Auth.Warning 192.168.0.202 1 2018-10-29T09:20:49.667014+00:00 DC3 CEF 3908 AbnormalSensitiveGroupMembership |Microsoft|Azure ATP|2.52.5704.46184|AbnormalSensitiveGroupMembershipChangeSecurityAlert|Suspicious modification of sensitive groups|5|start=2018-10-29T09:19:43.3013729Z app=GroupMembershipChangeEvent suser=user1 msg=user1 has uncharacteristically modified sensitive group memberships. externalId=2024 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/6f7e677e-f068-41e5-bada-708cd5a322b9 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Replica sospetta dei servizi directory

02-21-2018 16:21:22 Auth.Error 192.168.0.220 1 2018-02-21T14:21:13.978554+00:00 CENTER CEF 6076 DirectoryServicesReplicationSecu |Microsoft|Azure ATP|2.22.4228.22540|DirectoryServicesReplicationSecurityAlert|Malicious replication of directory services|10|start=2018-02-21T14:19:03.9975656Z app=Drsr shost=CLIENT1 msg=Malicious replication requests were successfully performed by user1, from CLIENT1 against DC1. outcome=Success externalId=2006 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/cb95648e-1b6f-4d3b-81b9-7605532787d7 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Richiesta di replica sospetta (potenziale attacco DcShadow)

07-12-2018 11:18:37 Auth.Error 192.168.0.200 1 2018-07-12T08:18:32.265989+00:00 DC1 CEF 3868 DirectoryServicesRogueReplicatio |Microsoft|Azure ATP|2.40.0.0|DirectoryServicesRogueReplicationSecurityAlert| **Suspicious replication request (potential DcShadow attack)**|10|start=2018-07-12T08:17:55.3816102Z **app=Replication Activity** shost=CLIENT1 msg=CLIENT1, which is not a valid domain controller in domain1.test.local, sent changes to directory objects on DC1. externalId=2029 cs1Label=url cs1=https\://contoso-corp.atp.azure.com:13000/securityAlert/1d5d1444-12cf-4db9-be48-39ebc2f51515 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Creazione di servizio sospetto

10-29-2018 11:20:02 Auth.Warning 192.168.0.202 1 2018-10-29T09:19:59.164874+00:00 DC3 CEF 3908 MaliciousServiceCreationSecurity |Microsoft|Azure ATP|2.52.5704.46184|MaliciousServiceCreationSecurityAlert|Suspicious service creation|5|start=2018-10-29T09:19:44.9471965Z app=ServiceInstalledEvent shost=CLIENT1 msg=user1 created MaliciousService in order to execute potentially malicious commands on CLIENT1. externalId=2026 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/118bbe3d-fe72-40de-80d0-2678b68aa027 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Connessione VPN sospetta

07-03-2018 13:13:12 Auth.Warning 192.168.0.200 1 2018-07-03T10:13:06.187834+00:00 DC1 CEF 2520 AbnormalVpnSecurityAlert |Microsoft|Azure ATP|2.39.0.0|AbnormalVpnSecurityAlert|Suspicious VPN Connection|5|start=2018-06-30T15:34:05.3887333Z app=VpnConnection suser=user1 msg=user1 connected to a VPN using 3 computers from 3 Locations. externalId=2025 cs1Label=url cs1=https\://contoso-corp.eng.atp.azure.com:13000/securityAlert/88c46b0e-372f-4c06-9935-67bd512c4f68 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto attacco ransomware WannaCry

02-21-2018 16:21:22 Auth.Warning 192.168.0.220 1 2018-02-21T14:21:13.916050+00:00 CENTER CEF 6076 AbnormalProtocolSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|AbnormalProtocolSecurityAlert|SuspectedWannaCryRansomwareAttack|5|start=2018-02-21T14:19:03.1981155Z app=Ntlm shost=CLIENT2 outcome=Success msg=There were attempts to authenticate from CLIENT2 against DC1 using an unusual protocol implementation. May be a result of malicious tools used to execute attacks such as WannaCry. externalId=2035 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto attacco di forza bruta (SMB)

002-21-2018 16:21:22 Auth.Warning 192.168.0.220 1 2018-02-21T14:21:13.916050+00:00 CENTER CEF 6076 AbnormalProtocolSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|AbnormalProtocolSecurityAlert|SuspectedBrutForceAttack|5|start=2018-02-21T14:19:03.1981155Z app=Ntlm shost=CLIENT2 outcome=Success msg=There were attempts to authenticate from CLIENT2 against DC1 using an unusual protocol implementation. May be a result of malicious tools used to execute attacks such as Hydra. externalId=2033 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto uso di Metasploit hacking framework

002-21-2018 16:21:22 Auth.Warning 192.168.0.220 1 2018-02-21T14:21:13.916050+00:00 CENTER CEF 6076 AbnormalProtocolSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|AbnormalProtocolSecurityAlert|SuspectedAttackUsingMetasploit|5|start=2018-02-21T14:19:03.1981155Z app=Ntlm shost=CLIENT2 outcome=Success msg=There were attempts to authenticate from CLIENT2 against DC1 using an unusual protocol implementation. May be a result of malicious tools used to execute attacks such as Metasploit. externalId=2034 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Sospetto attacco overpass-the-hash (Kerberos)

002-21-2018 16:21:22 Auth.Warning 192.168.0.220 1 2018-02-21T14:21:13.916050+00:00 CENTER CEF 6076 AbnormalProtocolSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|AbnormalProtocolSecurityAlert|SuspectedOverPassTheHashAttack|5|start=2018-02-21T14:19:03.1981155Z app=Ntlm shost=CLIENT2 outcome=Success msg=There were attempts to authenticate from CLIENT2 against DC1 using an unusual protocol implementation. May be a result of malicious acts using the Kerberos protocol. externalId=2002 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Ricognizione di indirizzi IP e utente (SMB)

002-21-2018 16:21:22 Auth.Warning 192.168.0.220 1 2018-02-21T14:21:13.916050+00:00 CENTER CEF 6076 AbnormalProtocolSecurityAlert |Microsoft|Azure ATP|2.22.4228.22540|AbnormalProtocolSecurityAlert|ReconnaissanceusingSMBSessionEnumeration|5|start=2018-02-21T14:19:03.1981155Z app=Ntlm shost=CLIENT2 outcome=Success msg=There were attempts to authenticate from CLIENT2 against DC1 using an unusual protocol implementation. May be a result of malicious tools used to execute attacks such as Metasploit. externalId=2034 cs1Label=url cs1=https\://contoso-corp.atp.azure.com/securityAlert/40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Vedi anche