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98c412044a
added missing ATT&CK v6.3 IDs with comments and removed unnecessary "modified" attributes
68 lines
2.1 KiB
YAML
68 lines
2.1 KiB
YAML
title: Renamed Binary
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id: 36480ae1-a1cb-4eaa-a0d6-29801d7e9142
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status: experimental
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description: Detects the execution of a renamed binary often used by attackers or malware leveraging new Sysmon OriginalFileName datapoint.
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author: Matthew Green - @mgreen27, Ecco, James Pemberton / @4A616D6573, oscd.community (improvements), Andreas Hunkeler (@Karneades)
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date: 2019/06/15
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modified: 2020/09/06
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references:
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- https://attack.mitre.org/techniques/T1036/
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- https://mgreen27.github.io/posts/2019/05/12/BinaryRename.html
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- https://mgreen27.github.io/posts/2019/05/29/BinaryRename2.html
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tags:
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- attack.defense_evasion
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- attack.t1036 # an old one
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- attack.t1036.003
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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:
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OriginalFileName:
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- 'cmd.exe'
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- 'powershell.exe'
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- 'powershell_ise.exe'
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- 'psexec.exe'
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- 'psexec.c' # old versions of psexec (2016 seen)
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- 'cscript.exe'
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- 'wscript.exe'
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- 'mshta.exe'
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- 'regsvr32.exe'
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- 'wmic.exe'
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- 'certutil.exe'
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- 'rundll32.exe'
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- 'cmstp.exe'
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- 'msiexec.exe'
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- '7z.exe'
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- 'winrar.exe'
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- 'wevtutil.exe'
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- 'net.exe'
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- 'net1.exe'
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- 'netsh.exe'
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filter:
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Image|endswith:
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- '\cmd.exe'
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- '\powershell.exe'
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- '\powershell_ise.exe'
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- '\psexec.exe'
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- '\psexec64.exe'
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- '\cscript.exe'
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- '\wscript.exe'
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- '\mshta.exe'
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- '\regsvr32.exe'
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- '\wmic.exe'
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- '\certutil.exe'
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- '\rundll32.exe'
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- '\cmstp.exe'
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- '\msiexec.exe'
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- '\7z.exe'
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- '\winrar.exe'
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- '\wevtutil.exe'
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- '\net.exe'
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- '\net1.exe'
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- '\netsh.exe'
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condition: selection and not filter
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falsepositives:
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- Custom applications use renamed binaries adding slight change to binary name. Typically this is easy to spot and add to whitelist
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level: medium
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