Nasreddine Bencherchali
28 lines
1.0 KiB
YAML
28 lines
1.0 KiB
YAML
title: Fake Instance Of Hxtsr.exe
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id: 4e762605-34a8-406d-b72e-c1a089313320
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status: test
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description: |
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HxTsr.exe is a Microsoft compressed executable file called Microsoft Outlook Communications.
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HxTsr.exe is part of Outlook apps, because it resides in a hidden "WindowsApps" subfolder of "C:\Program Files".
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Its path includes a version number, e.g., "C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_17.7466.41167.0_x64__8wekyb3d8bbwe\HxTsr.exe".
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Any instances of hxtsr.exe not in this folder may be malware camouflaging itself as HxTsr.exe
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author: Sreeman
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date: 2020/04/17
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modified: 2023/02/21
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tags:
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- attack.defense_evasion
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- attack.t1036
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logsource:
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product: windows
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category: process_creation
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detection:
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selection:
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Image: hxtsr.exe
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filter:
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CurrentDirectory|startswith: 'C:\program files\windowsapps\microsoft.windowscommunicationsapps_'
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CurrentDirectory|endswith: '\hxtsr.exe'
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condition: selection and not filter
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falsepositives:
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- Unknown
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level: medium
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