Samirbous
ca7a148f5a
* [New rule] Remote Computer Account DnsHostName Update
Identifies remote update to a computer account DnsHostName attribute, if the new value is set a valid domain controller DNS hostname and the subject computer name is not a domain controller then it's high likely a preparation step to exploit CVE-2022-26923 in an attempt to elevate privileges from a standard domain user to domain admin privileges :
* added MS ref url
* Update rules/windows/privilege_escalation_suspicious_dnshostname_update.toml
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
* Update rules/windows/privilege_escalation_suspicious_dnshostname_update.toml
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
(cherry picked from commit 19ff825a91)
61 lines
1.7 KiB
JSON
61 lines
1.7 KiB
JSON
{
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"endgame-*": {
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"endgame": {
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"metadata": {
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"type": "keyword"
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},
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"event_subtype_full": "keyword"
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}
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},
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"winlogbeat-*": {
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"winlog": {
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"event_data": {
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"AccessList": "keyword",
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"AccessMask": "keyword",
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"AccessMaskDescription": "keyword",
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"AllowedToDelegateTo": "keyword",
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"AttributeLDAPDisplayName": "keyword",
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"AttributeValue": "keyword",
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"CallerProcessName": "keyword",
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"CallTrace": "keyword",
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"ClientProcessId": "keyword",
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"GrantedAccess": "keyword",
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"NewTargetUserName": "keyword",
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"ObjectClass": "keyword",
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"ObjectDN": "keyword",
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"ObjectName": "keyword",
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"OldTargetUserName": "keyword",
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"OriginalFileName": "keyword",
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"ParentProcessId": "keyword",
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"ProcessName": "keyword",
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"Properties": "keyword",
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"RelativeTargetName": "keyword",
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"ShareName": "keyword",
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"SubjectLogonId": "keyword",
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"SubjectUserName": "keyword",
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"TargetImage": "keyword",
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"TargetLogonId": "keyword",
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"TargetProcessGUID": "keyword",
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"TargetSid": "keyword",
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"PrivilegeList": "keyword",
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"AuthenticationPackageName" : "keyword",
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"TargetUserSid" : "keyword",
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"DnsHostName" : "keyword"
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}
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},
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"winlog.logon.type": "keyword",
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"powershell.file.script_block_text": "text"
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},
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"filebeat-*": {
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"o365.audit.NewValue": "keyword"
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},
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"logs-endpoint.events.*": {
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"process.Ext.token.integrity_level_name": "keyword",
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"process.parent.Ext.real.pid": "long",
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"file.Ext.header_bytes": "keyword"
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},
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"logs-windows.*": {
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"powershell.file.script_block_text": "text"
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}
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}
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