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34 lines
1.4 KiB
YAML
Executable File
34 lines
1.4 KiB
YAML
Executable File
title: Suspicious Service Installed
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id: f2485272-a156-4773-82d7-1d178bc4905b
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description: Detects installation of NalDrv or PROCEXP152 services via registry-keys to non-system32 folders. Both services are used in the tool Ghost-In-The-Logs (https://github.com/bats3c/Ghost-In-The-Logs), which uses KDU (https://github.com/hfiref0x/KDU)
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status: experimental
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date: 2019/04/08
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author: xknow (@xknow_infosec), xorxes (@xor_xes)
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references:
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- https://blog.dylan.codes/evading-sysmon-and-windows-event-logging/
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tags:
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- attack.t1089 # an old one
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- attack.t1562.001
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- attack.defense_evasion
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logsource:
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category: registry_event
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product: windows
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detection:
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selection_1:
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TargetObject:
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- 'HKLM\System\CurrentControlSet\Services\NalDrv\ImagePath'
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- 'HKLM\System\CurrentControlSet\Services\PROCEXP152\ImagePath'
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selection_2:
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Image|endswith:
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- '\procexp64.exe'
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- '\procexp.exe'
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- '\procmon64.exe'
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- '\procmon.exe'
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selection_3:
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Details|contains:
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- '\WINDOWS\system32\Drivers\PROCEXP152.SYS'
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condition: selection_1 and not selection_2 and not selection_3
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falsepositives:
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- Other legimate tools using this service names and drivers. Note - clever attackers may easily bypass this detection by just renaming the services. Therefore just Medium-level and don't rely on it.
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level: medium
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