78 lines
2.3 KiB
YAML
78 lines
2.3 KiB
YAML
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_10:
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Image: '*\RemoteDesktopManagerFree.exe'
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SELECTION_11:
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Image: '*\RemoteDesktopManager.exe'
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SELECTION_12:
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Image: '*\RemoteDesktopManager64.exe'
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SELECTION_13:
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Image: '*\mRemoteNG.exe'
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SELECTION_14:
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Image: '*\mRemote.exe'
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SELECTION_15:
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Image: '*\Terminals.exe'
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SELECTION_16:
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Image: '*\spiceworks-finder.exe'
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SELECTION_17:
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Image: '*\FSDiscovery.exe'
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SELECTION_18:
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Image: '*\FSAssessment.exe'
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SELECTION_19:
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Image: '*\MobaRTE.exe'
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SELECTION_2:
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DestinationPort: 3389
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SELECTION_20:
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Image: '*\chrome.exe'
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SELECTION_21:
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Image: '*\System32\dns.exe'
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SELECTION_22:
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Image: '*\thor.exe'
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SELECTION_23:
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Image: '*\thor64.exe'
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SELECTION_3:
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Initiated: 'true'
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SELECTION_4:
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Image: '*\mstsc.exe'
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SELECTION_5:
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Image: '*\RTSApp.exe'
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SELECTION_6:
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Image: '*\RTS2App.exe'
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SELECTION_7:
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Image: '*\RDCMan.exe'
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SELECTION_8:
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Image: '*\ws_TunnelService.exe'
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SELECTION_9:
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Image: '*\RSSensor.exe'
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condition: (SELECTION_1 and (SELECTION_2 and SELECTION_3) and not ((SELECTION_4
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or SELECTION_5 or SELECTION_6 or SELECTION_7 or SELECTION_8 or SELECTION_9
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or SELECTION_10 or SELECTION_11 or SELECTION_12 or SELECTION_13 or SELECTION_14
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or SELECTION_15 or SELECTION_16 or SELECTION_17 or SELECTION_18 or SELECTION_19
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or SELECTION_20 or SELECTION_21 or SELECTION_22 or SELECTION_23)))
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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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yml_filename: sysmon_susp_rdp.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/network_connection
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