55 lines
1.3 KiB
YAML
55 lines
1.3 KiB
YAML
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title: Suspicious Outbound RDP Connections
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author: Markus Neis - Swisscom
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date: 2019/05/15
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description: Detects Non-Standard Tools Connecting to TCP port 3389 indicating possible
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lateral movement
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detection:
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SELECTION_1:
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EventID: 3
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SELECTION_2:
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DestinationPort: 3389
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SELECTION_3:
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Initiated: 'true'
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SELECTION_4:
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Image:
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- '*\mstsc.exe'
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- '*\RTSApp.exe'
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- '*\RTS2App.exe'
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- '*\RDCMan.exe'
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- '*\ws_TunnelService.exe'
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- '*\RSSensor.exe'
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- '*\RemoteDesktopManagerFree.exe'
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- '*\RemoteDesktopManager.exe'
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- '*\RemoteDesktopManager64.exe'
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- '*\mRemoteNG.exe'
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- '*\mRemote.exe'
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- '*\Terminals.exe'
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- '*\spiceworks-finder.exe'
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- '*\FSDiscovery.exe'
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- '*\FSAssessment.exe'
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- '*\MobaRTE.exe'
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- '*\chrome.exe'
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- '*\System32\dns.exe'
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- '*\thor.exe'
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- '*\thor64.exe'
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condition: (SELECTION_1 and (SELECTION_2 and SELECTION_3) and not (SELECTION_4))
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falsepositives:
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- Other Remote Desktop RDP tools
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- domain controller using dns.exe
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id: ed74fe75-7594-4b4b-ae38-e38e3fd2eb23
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level: high
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logsource:
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category: network_connection
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product: windows
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modified: 2020/08/24
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references:
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- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0708
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status: experimental
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tags:
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- attack.lateral_movement
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- attack.t1021.001
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- attack.t1076
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- car.2013-07-002
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ruletype: SIGMA
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