Nasreddine Bencherchali
30 lines
905 B
YAML
30 lines
905 B
YAML
title: Suspicious Calculator Usage
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id: 737e618a-a410-49b5-bec3-9e55ff7fbc15
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status: test
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description: Detects suspicious use of 'calc.exe' with command line parameters or in a suspicious directory, which is likely caused by some PoC or detection evasion
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references:
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- https://twitter.com/ItsReallyNick/status/1094080242686312448
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author: Florian Roth (Nextron Systems)
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date: 2019/02/09
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modified: 2022/11/07
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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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category: process_creation
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product: windows
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detection:
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selection_1:
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CommandLine|contains: '\calc.exe '
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selection_2:
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Image|endswith: '\calc.exe'
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filter_2:
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Image|startswith:
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- 'C:\Windows\System32\'
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- 'C:\Windows\SysWOW64\'
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- 'C:\Windows\WinSxS\'
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condition: selection_1 or ( selection_2 and not filter_2 )
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falsepositives:
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- Unknown
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level: high
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