Terrance DeJesus
e8c39d19a7
* initial commit with eggshell mitre mapping added * adding updated rules * [Rule Tuning] MITRE for GCP rules I've added Mitre references for the 4 GCP rules missing. Changed 3 of the rules from "Impact" to "Defense Evasion" based on the technique used and it's matched tactic. * [Rule Tuning] Endgame Rule name updates for Mitre Updated Endgame rule names for those with Mitre tactics to match the tactics. * Update rules/integrations/aws/persistence_redshift_instance_creation.toml Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com> * Update rules/integrations/aws/exfiltration_rds_snapshot_restored.toml Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com> * adding 10 updated rules for google_workspace, ml and o365 * adding 22 rule updates for mitre att&ck mappings * adding 24 rule updates related mainly to ML rules * adding 3 rules related to detection via ML * adding adjustments * adding adjustments with solutions to recent pytest errors * removed tabs from tags * adjusted mappings and added techniques * adjusted endgame rule mappings per review * adjusted names to match different tactics * added execution and defense evasion tag * adjustments to address errors from merging with main * added newlines to rules missing them at the end of the file Co-authored-by: imays11 <59296946+imays11@users.noreply.github.com> Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com>
73 lines
2.2 KiB
TOML
73 lines
2.2 KiB
TOML
[metadata]
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creation_date = "2020/11/03"
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maturity = "production"
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updated_date = "2022/07/20"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the use of Distributed Component Object Model (DCOM) to execute commands from a remote host, which are
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launched via the HTA Application COM Object. This behavior may indicate an attacker abusing a DCOM application to move
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laterally while attempting to evade detection.
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"""
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from = "now-9m"
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index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Incoming DCOM Lateral Movement via MSHTA"
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references = ["https://codewhitesec.blogspot.com/2018/07/lethalhta.html"]
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risk_score = 73
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rule_id = "622ecb68-fa81-4601-90b5-f8cd661e4520"
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severity = "high"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Lateral Movement"]
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type = "eql"
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query = '''
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sequence with maxspan=1m
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[process where event.type in ("start", "process_started") and
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process.name : "mshta.exe" and process.args : "-Embedding"
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] by host.id, process.entity_id
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[network where event.type == "start" and process.name : "mshta.exe" and
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network.direction : ("incoming", "ingress") and network.transport == "tcp" and
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source.port > 49151 and destination.port > 49151 and source.ip != "127.0.0.1" and source.ip != "::1"
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] by host.id, process.entity_id
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1021"
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name = "Remote Services"
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reference = "https://attack.mitre.org/techniques/T1021/"
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[[rule.threat.technique.subtechnique]]
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id = "T1021.003"
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name = "Distributed Component Object Model"
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reference = "https://attack.mitre.org/techniques/T1021/003/"
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[rule.threat.tactic]
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id = "TA0008"
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name = "Lateral Movement"
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reference = "https://attack.mitre.org/tactics/TA0008/"
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1218"
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name = "System Binary Proxy Execution"
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reference = "https://attack.mitre.org/techniques/T1218/"
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[[rule.threat.technique.subtechnique]]
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id = "T1218.005"
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name = "Mshta"
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reference = "https://attack.mitre.org/techniques/T1218/005/"
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[rule.threat.tactic]
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id = "TA0005"
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name = "Defense Evasion"
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reference = "https://attack.mitre.org/tactics/TA0005/"
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