[New Rule] Suspicious managed code hosting process (#204)

* [New Rule] Suspicious managed code hosting process * Update defense_evasion_suspicious_managedcode_host_process.toml * Update rules/windows/defense_evasion_suspicious_managedcode_host_process.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/windows/defense_evasion_suspicious_managedcode_host_process.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/windows/defense_evasion_suspicious_managedcode_host_process.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/windows/defense_evasion_suspicious_managedcode_host_process.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update defense_evasion_suspicious_managedcode_host_process.toml * Update rules/windows/defense_evasion_suspicious_managedcode_host_process.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>
2020-09-22 14:27:03 +02:00
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+[metadata]
+creation_date = "2020/08/21"
+ecs_version = ["1.6.0"]
+maturity = "production"
+updated_date = "2020/08/21"
+
+[rule]
+author = ["Elastic"]
+description = """
+Identifies a suspicious managed code hosting process which could indicate code injection or other form of suspicious code
+execution. 
+"""
+index = ["winlogbeat-*", "logs-endpoint.events.*"]
+language = "kuery"
+license = "Elastic License"
+name = "Suspicious Managed Code Hosting Process"
+references = ["https://blog.menasec.net/2019/07/interesting-difr-traces-of-net-clr.html"]
+risk_score = 73
+rule_id = "acf738b5-b5b2-4acc-bad9-1e18ee234f40"
+severity = "high"
+tags = ["Elastic", "Windows"]
+type = "query"
+
+query = '''
+event.category:file and not event.type:deletion and
+  file.name:(wscript.exe.log or mshta.exe.log or wscript.exe.log or wmic.exe.log or svchost.exe.log or dllhost.exe.log or cmstp.exe.log or regsvr32.exe.log)
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1093"
+name = "Process Injection"
+reference = "https://attack.mitre.org/techniques/T1055/"
+
+
+[rule.threat.tactic]
+id = "TA0005"
+name = "Defense Evasion"
+reference = "https://attack.mitre.org/tactics/TA0005/"