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Naslaginformatie over SIEM-logboeken voor Microsoft Defender for Identity

  • Artikel

Defender for Identity kan beveiligingswaarschuwingen en statuswaarschuwingen doorsturen naar uw SIEM. Waarschuwingen en gebeurtenissen hebben de CEF-indeling. Dit naslagartikel bevat voorbeelden van de logboeken die naar uw SIEM worden verzonden.

Notitie

U wordt aangeraden de streaming-API of REST API's te gebruiken om uw SIEM-hulpprogramma's te integreren met Microsoft Defender XDR. Met deze aanpak kunt u alle gebeurtenissen en waarschuwingen van alle Defender XDR-producten doorsturen in plaats van alleen de Defender for Identity-gebeurtenissen en -waarschuwingen.

Voorbeelden van Defender for Identity-beveiligingswaarschuwingen in CEF-indeling

De volgende velden en de bijbehorende waarden worden doorgestuurd naar uw SIEM:

Detail Uitleg
starten Tijdstip waarop de waarschuwing is gestart
suser Account (meestal het gebruikersaccount) dat betrokken is bij de waarschuwing
shost Account (meestal het computeraccount) dat betrokken is bij de waarschuwing
resultaat Indien relevant, geslaagd of mislukt van de verdachte activiteit in de waarschuwing
msg Beschrijving van de waarschuwing
cnt Voor waarschuwingen met een telling van het aantal keren dat de activiteit heeft plaatsgevonden (bijvoorbeeld brute force heeft een hoeveelheid geraden wachtwoorden)
-app Protocol dat in deze waarschuwing wordt gebruikt
externalId Gebeurtenis-id Defender for Identity schrijft naar het gebeurtenislogboek dat overeenkomt met elk type waarschuwing.
cs#label Klanttekenreeksen die zijn toegestaan door CEF, waarbij cs#label de naam is van het nieuwe veld
Cs# Klanttekenreeksen die zijn toegestaan door CEF, waarbij cs# de waarde is.

  • Bijvoorbeeld: cs1Label=url cs1=https\://security.microsoft.com/alerts/aa5909ae198ca1ec04d05e65fa
    Het veld cs1 is de waarschuwings-URL.

  • Bijvoorbeeld: cs2Label=trigger cs2=new
    Het veld cs2 geeft aan of de waarschuwing nieuw of bijgewerkt is.

  • Bijvoorbeeld: cs3Label=shostfqdn cs3=client1.contoso.com Het veld cs3 identificeert de volledig gekwalificeerde domeinnaam van de broncomputernaam.

Notitie

Als u van plan bent om automatisering of scripts te maken voor SIEM-logboeken van Defender for Identity, raden we u aan het veld externalId te gebruiken om het waarschuwingstype te identificeren in plaats van de waarschuwingsnaam voor dit doel te gebruiken. Namen van waarschuwingen kunnen af en toe worden gewijzigd, terwijl de externalId van elke waarschuwing permanent is. Zie Naamtoewijzing van beveiligingswaarschuwingen en unieke externe id's voor een lijst met externe id's.

Voorbeeldlogboeken

De logboekvoorbeelden voldoen aan RFC 5424, maar Defender for Identity ondersteunt ook RFC 3164.

Notitie

De onderstaande lijst is een voorbeeld van logboeken die naar een SIEM worden verzonden. Zie Naamtoewijzing van beveiligingswaarschuwingen en unieke externe id's voor een volledige lijst met waarschuwingsgegevens.

Prioriteiten:

  • 3 =Laag
  • 5 = gemiddeld
  • 10 =Hoog

Verkenning met accountopsommingen

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\://security.microsoft.com/alerts/aaeb6a35da-ff7f-4ab5-a1b5-a07529a89e6d cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Gegevensexfiltratie via 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\://security.microsoft.com/alerts/aa3ca2ec9d-2c67-44cc-a2d6-391716611bb6 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Honeytoken-activiteit

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\://security.microsoft.com/alerts/aa9249fe9a-c883-46dd-a4da-2a1fca5f211c cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Schadelijke aanvraag van de hoofdsleutel van de Data Protection-API

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\://security.microsoft.com/alerts/aa2f5717cb-2434-4d54-8af4-b2c6d14bc15c cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Reconnaissance voor netwerktoewijzing (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\://security.microsoft.com/alerts/aa23937d33-ff71-484d-be0a-3c417fe573ce cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Reconnaissance met behulp van query's voor directoryservices

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\://security.microsoft.com/alerts/aaf295029a-ffae-408b-9dd0-55424c81eac0 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Uitvoeringspoging voor externe code

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\://security.microsoft.com/alerts/aaf063c778-830c-4e9f-98d1-bc6c11c94e11 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Poging tot uitvoering van externe code via 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\:////security.microsoft.com/alerts/aa591f9769-d904-40b1-89fa-c307c2ca814f cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verkenning van beveiligingsprincipaal (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\://security.microsoft.com/alerts/aa81ea99c4-ce1f-4581-ac8f-7440fbed7cd0 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte beveiligingsaanval (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\://security.microsoft.com/alerts/aa57b8ac96-7907-4971-9b27-ec77ad8c029a cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte beveiligingsaanval (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\://security.microsoft.com/alerts/aa85042c8e-27fa-49b3-8667-dabc1aa31580 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte DCSync-aanval (replicatie van adreslijstservices)

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\://security.microsoft.com/alerts/aa179229b6-b791-4895-b5aa-fdf3747a325c cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Verdacht Golden Ticket-gebruik (versleutelings downgrade)

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\://security.microsoft.com/alerts/aaf01f8403-88b2-437e-b4ad-d72485fe05ac cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdacht Golden Ticket-gebruik (niet-bestaand account)

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\://security.microsoft.com/alerts/aa98f050d4-9134-429c-8e54-d8eeb19849c4 cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Verdacht Golden Ticket-gebruik (afwijking van 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\://security.microsoft.com/alerts/aa63600e03-f423-49bf-a92d-4010e1d52b9f cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Verdacht Golden Ticket-gebruik (tijdafwijking)

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\://security.microsoft.com/alerts/aa702c836e-6f49-4479-9892-80e8bccbfac0 cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Verdacht Golden Ticket-gebruik (vervalste autorisatiegegevens)

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\://security.microsoft.com/alerts/aab698d438-5013-4bca-be0b-f219f8b69108 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte identiteitsdiefstal (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\://security.microsoft.com/alerts/aa511f1487-2915-477d-be2e-04cfba702ccd cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Vermoedelijke identiteitsdiefstal (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\://security.microsoft.com/alerts/aa511f1487-2915-477d-be2e-04cfba702ccd cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte manipulatie van NTLM-verificatie

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\://security.microsoft.com/alerts/aad4ce6252-2c0f-47f6-a534-47ee8ad983be cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte over-pass-the-hash-aanval (versleuteling downgraden)

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\://security.microsoft.com/alerts/aa6354b9ed-6a39-4f5b-b10e-f51bbee879d2 cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte Skeleton Key-aanval (downgrade van versleuteling)

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\://security.microsoft.com/alerts/aa6354b9ed-6a39-4f5b-b10e-f51bbee879d2 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte verificatiefouten

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\://security.microsoft.com/alerts/aafea88fc7-4110-454d-816d-349032474fd6 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte communicatie via 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\://security.microsoft.com/alerts/aa0fc77777-49ca-40b3-a7ba-7644f355539e cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte domeincontrollerpromotie (mogelijke DcShadow-aanval)

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\://security.microsoft.com/alerts/aa97c59b43-dc18-44ee-9826-8fd5d03bd53 cs2Label=trigger cs2=update cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte toevoegingen aan gevoelige groepen

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\://security.microsoft.com/alerts/aa6f7e677e-f068-41e5-bada-708cd5a322b9 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Suspicious replication of directory services (Verdachte re

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\://security.microsoft.com/alerts/aacb95648e-1b6f-4d3b-81b9-7605532787d7 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte replicatieaanvraag (mogelijke DcShadow-aanval)

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\://security.microsoft.com/alerts/aa1d5d1444-12cf-4db9-be48-39ebc2f51515 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte service gemaakt

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\://security.microsoft.com/alerts/aa118bbe3d-fe72-40de-80d0-2678b68aa027 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte VPN-verbinding

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\://security.microsoft.com/alerts/aa88c46b0e-372f-4c06-9935-67bd512c4f68 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte WannaCry ransomware-aanval

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\://security.microsoft.com/alerts/aa40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte beveiligingsaanval (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\://security.microsoft.com/alerts/aa40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdacht gebruik van metasploit-hackframework

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\://security.microsoft.com/alerts/aa40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Verdachte overpass-the-hash-aanval (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\://security.microsoft.com/alerts/aa40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Reconnaissance van gebruikers- en IP-adressen (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\://security.microsoft.com/alerts/aa40fe98dd-aa42-4540-9d73-831486fdd1e4 cs2Label=trigger cs2=new cs3Label=shostfqdn cs3=client1.contoso.com

Zie ook