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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| { | ||
| "input": { | ||
| "message": "{\"type\": \"rtlogs\", \"level\": \"medium\", \"maturity\": \"stable\", \"quarantine\": 4, \"rule_content\": \"title: User Account Added to the Local Administrators Group\\nid: 12345678-abcd-ef90-1234-123456abcdef\\ndescription: \\\"Detects when a user account is added into the local Administrators group.\\\\n\\nThis action can be the result of a malicious activity.\\\"\\nreferences:\\n - https://attack.mitre.org/techniques/T1098/\\n - https://attack.mitre.org/techniques/T1078/003/\\nstatus: stable\\ndate: 2021/04/28\\nmodified: 2021/01/10\\nauthor: HarfangLab\\ntags:\\n - attack.persistence\\n - attack.t1098\\n - attack.privilege_escalation\\n - attack.t1078.003\\nlogsource:\\n product: windows\\n service: security\\ndetection:\\n selection:\\n EventID: 4732\\n GroupSid: S-1-2-3-4\\n exclusion:\\n - MemberSid: S-1-2-4-*-512 # avoid detection when a computer joined a domain (domain admins sid)\\n - SubjectUserName|endswith: \\n condition: selection and not exclusion\\nfalsepositives:\\n - Legitimate administrator action\\nlevel: medium\", \"alert_time\": \"2024-11-12T08:39:14.017+00:00\", \"rule_name\": \"User Account Added to the Local Administrators Group\", \"tags\": [\"attack.persistence\", \"attack.privilege_escalation\", \"attack.t1078.003\", \"attack.t1098\"], \"level_int\": 30, \"eventlog\": {\"level\": \"log_always\", \"type\": \"wineventlog\", \"detection_timestamp\": \"2024/11/12 08:39:13.967\", \"event_id\": 4732, \"event_data\": {\"SubjectUserSid\": \"S-1-2-4-5-6\", \"SubjectDomainName\": \"NT_DOMAIN\", \"PrivilegeList\": \"-\", \"TargetDomainName\": \"Builtin\", \"TargetUserName\": \"Administrateurs\", \"MemberSid\": \"S-1-2-4-7-8\", \"MemberName\": \"NT_DOMAIN\\\\DOEJ\", \"SubjectUserName\": \"sw-suser\", \"TargetSid\": \"S-1-2-3-4\", \"SubjectLogonId\": \"0x1234567\"}, \"record_number\": 174136362, \"event_date\": \"2024-11-12T08:39:13.205Z\", \"sigma_rule_content\": \"title: User Account Added to the Local Administrators Group\\nid: 12345678-abcd-ef90-1234-123456abcdef\\ndescription: \\\"Detects when a user account is added into the local Administrators group.\\\\n\\nThis action can be the result of a malicious activity.\\\"\\nreferences:\\n - https://attack.mitre.org/techniques/T1098/\\n - https://attack.mitre.org/techniques/T1078/003/\\nstatus: stable\\ndate: 2021/04/28\\nmodified: 2021/01/10\\nauthor: HarfangLab\\ntags:\\n - attack.persistence\\n - attack.t1098\\n - attack.privilege_escalation\\n - attack.t1078.003\\nlogsource:\\n product: windows\\n service: security\\ndetection:\\n selection:\\n EventID: 4732\\n GroupSid: S-1-2-3-4\\n exclusion:\\n - MemberSid: S-1-2-4-*-512 # avoid detection when a computer joined a domain (domain admins sid)\\n - SubjectUserName|endswith: \\n condition: selection and not exclusion\\nfalsepositives:\\n - Legitimate administrator action\\nlevel: medium\", \"source_name\": \"Microsoft-Windows-Security-Auditing\", \"dont_create_eventlog\": true, \"user\": {\"domain\": \"\", \"name\": \"\", \"type\": \"unknown\", \"identifier\": \"\"}, \"thread_id\": 1728, \"log_name\": \"Security\", \"process_id\": 1224, \"status\": 0, \"ioc_matches\": [], \"provider_guid\": \"54849625-5478-4994-a5ba-3e3b0328c30d\", \"keywords\": [\"AuditSuccess\", \"ReservedKeyword63\"], \"log_type\": \"eventlog\", \"computer_name\": \"PC01.domain.com\", \"user_data\": {}, \"system_event_type\": \"event_log_event\"}, \"threat_values\": [], \"destination\": \"syslog\", \"@timestamp\": \"2024-11-12T08:39:14.017Z\", \"detection_date\": \"2024-11-12T08:39:13.967+00:00\", \"@event_create_date\": \"2024-11-12T08:39:14.017Z\", \"aggregation_key\": \"8415b902c507b98714301b4ab6633009fbf2728c0cfaf61637c5e903627e4ebb\", \"alert_type\": \"sigma\", \"rule_id\": \"12345678-abcd-ef90-1234-123456abcdef\", \"ingestion_date\": \"2024-11-12T08:39:14.017+00:00\", \"tenant\": \"3b37ffc8520ef542\", \"threat_type\": \"new\", \"groups\": [{\"name\": \"Postes de travail\", \"id\": \"11111111-2222-3333-4444-555555555555\"}, {\"name\": \"Postes de travail : Lot 3\", \"id\": \"66666666-7777-8888-9999-000000000000\"}], \"status\": \"new\", \"execution\": 0, \"agent\": {\"agentid\": \"11111111-aaaa-2222-bbbb-333333333333\", \"domain\": null, \"osproducttype\": \"Windows 10 Enterprise\", \"ostype\": \"windows\", \"dnsdomainname\": \"domain.com\", \"distroid\": null, \"domainname\": \"NT_DOMAIN\", \"osversion\": \"10.0.19045\", \"hostname\": \"PC01\", \"version\": \"4.1.6\", \"additional_info\": {}}, \"threat_key\": \"20528\", \"mitre_cells\": [\"persistence__t1078.003\", \"persistence__t1098\", \"privilege-escalation__t1078.003\", \"privilege-escalation__t1098\"], \"alert_unique_id\": \"aaaaaaaa-1111-bbbb-2222-cccccccccccc\", \"log_type\": \"alert\", \"@version\": \"1\", \"msg\": \"Detects when a user account is added into the local Administrators group.\\n This action can be the result of a malicious activity.\", \"alert_subtype\": \"eventlog\", \"detection_origin\": \"agent\"}", | ||
| "sekoiaio": { | ||
| "intake": { | ||
| "dialect": "HarfangLab EDR", | ||
| "dialect_uuid": "3c7057d3-4689-4fae-8033-6f1f887a70f2" | ||
| } | ||
| } | ||
| }, | ||
| "expected": { | ||
| "message": "{\"type\": \"rtlogs\", \"level\": \"medium\", \"maturity\": \"stable\", \"quarantine\": 4, \"rule_content\": \"title: User Account Added to the Local Administrators Group\\nid: 12345678-abcd-ef90-1234-123456abcdef\\ndescription: \\\"Detects when a user account is added into the local Administrators group.\\\\n\\nThis action can be the result of a malicious activity.\\\"\\nreferences:\\n - https://attack.mitre.org/techniques/T1098/\\n - https://attack.mitre.org/techniques/T1078/003/\\nstatus: stable\\ndate: 2021/04/28\\nmodified: 2021/01/10\\nauthor: HarfangLab\\ntags:\\n - attack.persistence\\n - attack.t1098\\n - attack.privilege_escalation\\n - attack.t1078.003\\nlogsource:\\n product: windows\\n service: security\\ndetection:\\n selection:\\n EventID: 4732\\n GroupSid: S-1-2-3-4\\n exclusion:\\n - MemberSid: S-1-2-4-*-512 # avoid detection when a computer joined a domain (domain admins sid)\\n - SubjectUserName|endswith: \\n condition: selection and not exclusion\\nfalsepositives:\\n - Legitimate administrator action\\nlevel: medium\", \"alert_time\": \"2024-11-12T08:39:14.017+00:00\", \"rule_name\": \"User Account Added to the Local Administrators Group\", \"tags\": [\"attack.persistence\", \"attack.privilege_escalation\", \"attack.t1078.003\", \"attack.t1098\"], \"level_int\": 30, \"eventlog\": {\"level\": \"log_always\", \"type\": \"wineventlog\", \"detection_timestamp\": \"2024/11/12 08:39:13.967\", \"event_id\": 4732, \"event_data\": {\"SubjectUserSid\": \"S-1-2-4-5-6\", \"SubjectDomainName\": \"NT_DOMAIN\", \"PrivilegeList\": \"-\", \"TargetDomainName\": \"Builtin\", \"TargetUserName\": \"Administrateurs\", \"MemberSid\": \"S-1-2-4-7-8\", \"MemberName\": \"NT_DOMAIN\\\\DOEJ\", \"SubjectUserName\": \"sw-suser\", \"TargetSid\": \"S-1-2-3-4\", \"SubjectLogonId\": \"0x1234567\"}, \"record_number\": 174136362, \"event_date\": \"2024-11-12T08:39:13.205Z\", \"sigma_rule_content\": \"title: User Account Added to the Local Administrators Group\\nid: 12345678-abcd-ef90-1234-123456abcdef\\ndescription: \\\"Detects when a user account is added into the local Administrators group.\\\\n\\nThis action can be the result of a malicious activity.\\\"\\nreferences:\\n - https://attack.mitre.org/techniques/T1098/\\n - https://attack.mitre.org/techniques/T1078/003/\\nstatus: stable\\ndate: 2021/04/28\\nmodified: 2021/01/10\\nauthor: HarfangLab\\ntags:\\n - attack.persistence\\n - attack.t1098\\n - attack.privilege_escalation\\n - attack.t1078.003\\nlogsource:\\n product: windows\\n service: security\\ndetection:\\n selection:\\n EventID: 4732\\n GroupSid: S-1-2-3-4\\n exclusion:\\n - MemberSid: S-1-2-4-*-512 # avoid detection when a computer joined a domain (domain admins sid)\\n - SubjectUserName|endswith: \\n condition: selection and not exclusion\\nfalsepositives:\\n - Legitimate administrator action\\nlevel: medium\", \"source_name\": \"Microsoft-Windows-Security-Auditing\", \"dont_create_eventlog\": true, \"user\": {\"domain\": \"\", \"name\": \"\", \"type\": \"unknown\", \"identifier\": \"\"}, \"thread_id\": 1728, \"log_name\": \"Security\", \"process_id\": 1224, \"status\": 0, \"ioc_matches\": [], \"provider_guid\": \"54849625-5478-4994-a5ba-3e3b0328c30d\", \"keywords\": [\"AuditSuccess\", \"ReservedKeyword63\"], \"log_type\": \"eventlog\", \"computer_name\": \"PC01.domain.com\", \"user_data\": {}, \"system_event_type\": \"event_log_event\"}, \"threat_values\": [], \"destination\": \"syslog\", \"@timestamp\": \"2024-11-12T08:39:14.017Z\", \"detection_date\": \"2024-11-12T08:39:13.967+00:00\", \"@event_create_date\": \"2024-11-12T08:39:14.017Z\", \"aggregation_key\": \"8415b902c507b98714301b4ab6633009fbf2728c0cfaf61637c5e903627e4ebb\", \"alert_type\": \"sigma\", \"rule_id\": \"12345678-abcd-ef90-1234-123456abcdef\", \"ingestion_date\": \"2024-11-12T08:39:14.017+00:00\", \"tenant\": \"3b37ffc8520ef542\", \"threat_type\": \"new\", \"groups\": [{\"name\": \"Postes de travail\", \"id\": \"11111111-2222-3333-4444-555555555555\"}, {\"name\": \"Postes de travail : Lot 3\", \"id\": \"66666666-7777-8888-9999-000000000000\"}], \"status\": \"new\", \"execution\": 0, \"agent\": {\"agentid\": \"11111111-aaaa-2222-bbbb-333333333333\", \"domain\": null, \"osproducttype\": \"Windows 10 Enterprise\", \"ostype\": \"windows\", \"dnsdomainname\": \"domain.com\", \"distroid\": null, \"domainname\": \"NT_DOMAIN\", \"osversion\": \"10.0.19045\", \"hostname\": \"PC01\", \"version\": \"4.1.6\", \"additional_info\": {}}, \"threat_key\": \"20528\", \"mitre_cells\": [\"persistence__t1078.003\", \"persistence__t1098\", \"privilege-escalation__t1078.003\", \"privilege-escalation__t1098\"], \"alert_unique_id\": \"aaaaaaaa-1111-bbbb-2222-cccccccccccc\", \"log_type\": \"alert\", \"@version\": \"1\", \"msg\": \"Detects when a user account is added into the local Administrators group.\\n This action can be the result of a malicious activity.\", \"alert_subtype\": \"eventlog\", \"detection_origin\": \"agent\"}", | ||
| "event": { | ||
| "dataset": "alert", | ||
| "kind": "alert", | ||
| "type": [ | ||
| "info" | ||
| ] | ||
| }, | ||
| "@timestamp": "2024-11-12T08:39:14.017000Z", | ||
| "action": { | ||
| "properties": { | ||
| "MemberName": "DOEJ", | ||
| "SubjectDomainName": "NT_DOMAIN", | ||
| "SubjectLogonId": "0x1234567", | ||
| "SubjectUserName": "sw-suser", | ||
| "SubjectUserSid": "S-1-2-4-5-6", | ||
| "TargetDomainName": "Builtin", | ||
| "TargetSid": "S-1-2-3-4", | ||
| "TargetUserName": "Administrateurs" | ||
| } | ||
| }, | ||
| "agent": { | ||
| "id": "11111111-aaaa-2222-bbbb-333333333333", | ||
| "name": "harfanglab" | ||
| }, | ||
| "harfanglab": { | ||
| "aggregation_key": "8415b902c507b98714301b4ab6633009fbf2728c0cfaf61637c5e903627e4ebb", | ||
| "alert_subtype": "eventlog", | ||
| "alert_time": "2024-11-12T08:39:14.017+00:00", | ||
| "alert_unique_id": "aaaaaaaa-1111-bbbb-2222-cccccccccccc", | ||
| "execution": 0, | ||
| "groups": [ | ||
| "{\"id\": \"11111111-2222-3333-4444-555555555555\", \"name\": \"Postes de travail\"}", | ||
| "{\"id\": \"66666666-7777-8888-9999-000000000000\", \"name\": \"Postes de travail : Lot 3\"}" | ||
| ], | ||
| "level": "medium", | ||
| "status": "new" | ||
| }, | ||
| "host": { | ||
| "domain": "NT_DOMAIN", | ||
| "hostname": "PC01", | ||
| "name": "PC01", | ||
| "os": { | ||
| "full": "Windows 10 Enterprise", | ||
| "version": "10.0.19045" | ||
| } | ||
| }, | ||
| "log": { | ||
| "hostname": "PC01" | ||
| }, | ||
| "organization": { | ||
| "id": "3b37ffc8520ef542" | ||
| }, | ||
| "related": { | ||
| "hosts": [ | ||
| "PC01" | ||
| ], | ||
| "user": [ | ||
| "sw-suser" | ||
| ] | ||
| }, | ||
| "rule": { | ||
| "category": "sigma", | ||
| "description": "Detects when a user account is added into the local Administrators group.\n This action can be the result of a malicious activity.", | ||
| "id": "12345678-abcd-ef90-1234-123456abcdef", | ||
| "name": "User Account Added to the Local Administrators Group" | ||
| }, | ||
| "user": { | ||
| "domain": "NT_DOMAIN", | ||
| "name": "sw-suser", | ||
| "roles": "Postesdetravail,Postesdetravail:Lot3", | ||
| "target": { | ||
| "domain": "Builtin", | ||
| "name": "Administrateurs" | ||
| } | ||
| } | ||
| } | ||
| } |
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