DustInDark
0cfa806baf
* added ruletype to SIGMA rule #230 * added ruletype to SIGMA rule converter tool #231
52 lines
1.6 KiB
YAML
52 lines
1.6 KiB
YAML
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title: CobaltStrike Service Installations in Registry
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author: Wojciech Lesicki
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date: 2021/06/29
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description: Detects known malicious service installs that appear in cases in which
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a Cobalt Strike beacon elevates privileges or lateral movement. We can also catch
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this by system log 7045 (https://github.com/SigmaHQ/sigma/blob/master/rules/windows/builtin/win_cobaltstrike_service_installs.yml)
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In some SIEM you can catch those events also in HKLM\System\ControlSet001\Services
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or HKLM\System\ControlSet002\Services, however, this rule is based on a regular
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sysmon's events.
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detection:
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SELECTION_1:
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EventID: 12
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SELECTION_10:
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Details: '*powershell*'
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SELECTION_2:
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EventID: 13
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SELECTION_3:
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EventID: 14
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SELECTION_4:
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EventType: SetValue
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SELECTION_5:
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TargetObject: '*HKLM\System\CurrentControlSet\Services*'
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SELECTION_6:
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Details: '*ADMIN$*'
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SELECTION_7:
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Details: '*.exe*'
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SELECTION_8:
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Details: '*%COMSPEC%*'
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SELECTION_9:
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Details: '*start*'
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condition: ((SELECTION_1 or SELECTION_2 or SELECTION_3) and SELECTION_4 and SELECTION_5
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and ((SELECTION_6 and SELECTION_7) or (SELECTION_8 and SELECTION_9 and SELECTION_10)))
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falsepositives:
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- unknown
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id: 61a7697c-cb79-42a8-a2ff-5f0cdfae0130
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level: critical
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logsource:
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category: registry_event
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product: windows
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references:
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- https://www.sans.org/webcasts/tech-tuesday-workshop-cobalt-strike-detection-log-analysis-119395
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status: experimental
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tags:
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- attack.execution
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- attack.privilege_escalation
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- attack.lateral_movement
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- attack.t1021.002
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- attack.t1543.003
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- attack.t1569.002
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ruletype: SIGMA
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