[New Rule] Unusual System Virtual Process Child Program (#181)

* [New Rule] Unusual System Virtual Process Child Program * Update defense_evasion_unusual_system_vp_child_program.toml * Update defense_evasion_unusual_system_vp_child_program.toml * Update rules/windows/defense_evasion_unusual_system_vp_child_program.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/windows/defense_evasion_unusual_system_vp_child_program.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/windows/defense_evasion_unusual_system_vp_child_program.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/windows/defense_evasion_unusual_system_vp_child_program.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/windows/defense_evasion_unusual_system_vp_child_program.toml Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com> * Update rules/windows/defense_evasion_unusual_system_vp_child_program.toml Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com> * Update rules/windows/defense_evasion_unusual_system_vp_child_program.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> Co-authored-by: David French <56409778+threat-punter@users.noreply.github.com>
2020-09-22 22:45:50 +02:00
parent 431dcc17a4
commit 87e1c92011
1 changed files with 38 additions and 0 deletions
@@ -0,0 +1,38 @@
+[metadata]
+creation_date = "2020/08/19"
+ecs_version = ["1.6.0"]
+maturity = "production"
+updated_date = "2020/08/19"
+
+[rule]
+author = ["Elastic"]
+description = "Identifies a suspicious child process of the Windows virtual system process, which could indicate code injection."
+index = ["winlogbeat-*", "logs-endpoint.events.*"]
+language = "kuery"
+license = "Elastic License"
+name = "Unusual Child Process from a System Virtual Process"
+risk_score = 73
+rule_id = "de9bd7e0-49e9-4e92-a64d-53ade2e66af1"
+severity = "high"
+tags = ["Elastic", "Windows"]
+type = "query"
+
+query = '''
+event.category:process and event.type:(start or process_started) and
+  process.parent.pid:4 and 
+  not process.executable:(Registry or MemCompression or "C:\Windows\System32\smss.exe")
+'''
+
+
+[[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/"