sethc.exe

  • File Path: C:\Windows\system32\sethc.exe
  • Description: Accessibility shortcut keys

Hashes

Type Hash
MD5 0D68CE0D6D390F926B4ECE77E44D4E30
SHA1 7F6E66F120ECA805FB2E7C99DF74BC00E16F5E04
SHA256 2DFCAA75BFB6EFBD24A0862C80F90798BE480F656A434C5ACE7EEB618835C78A
SHA384 90AE8ACCE39E0C24525523425362A3A25BA9F40C8FB30C5255C2D2F15158B0083ED767E5413CE65A21F156C22DAED461
SHA512 C978C7814BCF20C1529407F73465B8258500D39FCD5947CE5C3A87CC3FF1EEF5764F8C29746A5DCC15D10BFDF096AFCDAFE4F11C84ADDF764E332E67895F4565
SSDEEP 6144:u3Gw3vDeZOj+jC6uFz2LJGRg4kLNnei36cw:u2uquFCdUc

Signature

  • Status: Signature verified.
  • Serial: 33000000BCE120FDD27CC8EE930000000000BC
  • Thumbprint: E85459B23C232DB3CB94C7A56D47678F58E8E51E
  • 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: sethc.exe.mui
  • Product Name: Microsoft Windows Operating System
  • Company Name: Microsoft Corporation
  • File Version: 10.0.14393.0 (rs1_release.160715-1616)
  • Product Version: 10.0.14393.0
  • Language: English (United States)
  • Legal Copyright: Microsoft Corporation. All rights reserved.

File Similarity (ssdeep match)

File Score
C:\Windows\system32\EaseOfAccessDialog.exe 61
C:\windows\system32\EaseOfAccessDialog.exe 77
C:\Windows\system32\EaseOfAccessDialog.exe 77
C:\Windows\system32\EaseOfAccessDialog.exe 61
C:\Windows\system32\sethc.exe 63
C:\windows\system32\sethc.exe 75
C:\Windows\system32\sethc.exe 61
C:\Windows\SysWOW64\EaseOfAccessDialog.exe 60
C:\Windows\SysWOW64\EaseOfAccessDialog.exe 71
C:\windows\SysWOW64\EaseOfAccessDialog.exe 80
C:\Windows\SysWOW64\EaseOfAccessDialog.exe 61
C:\Windows\SysWOW64\sethc.exe 61
C:\windows\SysWOW64\sethc.exe 79
C:\Windows\SysWOW64\sethc.exe 66
C:\Windows\SysWOW64\sethc.exe 77

Possible Misuse

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

Source Source File Example License
sigma win_install_reg_debugger_backdoor.yml - '*\CurrentVersion\Image File Execution Options\sethc.exe*' DRL 1.0
sigma sysmon_stickykey_like_backdoor.yml - '*\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sethc.exe\Debugger' DRL 1.0
sigma sysmon_stickykey_like_backdoor.yml - '*cmd.exe sethc.exe *' DRL 1.0
atomic-red-team T1546.008.md Two common accessibility programs are C:\Windows\System32\sethc.exe, launched when the shift key is pressed five times and C:\Windows\System32\utilman.exe, launched when the Windows + U key combination is pressed. The sethc.exe program is often referred to as “sticky keys”, and has been used by adversaries for unauthenticated access through a remote desktop login screen. (Citation: FireEye Hikit Rootkit) MIT License. © 2018 Red Canary
atomic-red-team T1546.008.md | parent_list | Comma separated list of system binaries to which you want to attach each #{attached_process}. Default: “osk.exe” | String | osk.exe, sethc.exe, utilman.exe, magnify.exe, narrator.exe, DisplaySwitch.exe, atbroker.exe| MIT License. © 2018 Red Canary
atomic-red-team T1546.008.md Replace sticky keys binary (sethc.exe) with cmd.exe MIT License. © 2018 Red Canary
atomic-red-team T1546.008.md copy C:\Windows\System32\sethc.exe C:\Windows\System32\sethc_backup.exe MIT License. © 2018 Red Canary
atomic-red-team T1546.008.md takeown /F C:\Windows\System32\sethc.exe /A MIT License. © 2018 Red Canary
atomic-red-team T1546.008.md icacls C:\Windows\System32\sethc.exe /grant Administrators:F /t MIT License. © 2018 Red Canary
atomic-red-team T1546.008.md copy /Y C:\Windows\System32\cmd.exe C:\Windows\System32\sethc.exe MIT License. © 2018 Red Canary
atomic-red-team T1546.008.md copy /Y C:\Windows\System32\sethc_backup.exe C:\Windows\System32\sethc.exe MIT License. © 2018 Red Canary
signature-base cn_pentestset_scripts.yar $s1 = “success = obj.run("cmd /c takeown /f %SystemRoot%\system32\sethc.exe&echo y| “ ascii /* PEStudio Blacklist: strings */ CC BY-NC 4.0
signature-base cn_pentestset_tools.yar description = “Sample from CN Honker Pentest Toolset - file T00ls Lpk Sethc v4.0.exe” CC BY-NC 4.0
signature-base cn_pentestset_tools.yar description = “Sample from CN Honker Pentest Toolset - file T00ls Lpk Sethc v3.0.exe” CC BY-NC 4.0
signature-base cn_pentestset_tools.yar description = “Sample from CN Honker Pentest Toolset - file T00ls Lpk Sethc v2.exe” CC BY-NC 4.0
signature-base cn_pentestset_tools.yar $s2 = “\dllcache\sethc.exe” fullword ascii CC BY-NC 4.0
signature-base cn_pentestset_tools.yar $s2 = “\sethc.exe /G everyone:F” fullword ascii /* PEStudio Blacklist: strings */ CC BY-NC 4.0
signature-base cn_pentestset_tools.yar $s1 = “\sethc.exe /G everyone:F” fullword ascii /* PEStudio Blacklist: strings */ CC BY-NC 4.0
signature-base cn_pentestset_tools.yar $s3 = “\dllcache\sethc.exe” fullword ascii CC BY-NC 4.0
signature-base cn_pentestset_tools.yar $s3 = “\sethc.exe /G everyone:F” fullword ascii /* PEStudio Blacklist: strings */ CC BY-NC 4.0
signature-base thor_inverse_matches.yar description = “Sethc.exe has been replaced - Indicates Remote Access Hack RDP” CC BY-NC 4.0
signature-base thor_inverse_matches.yar $s4 = “SETHC.EXE” wide fullword CC BY-NC 4.0
signature-base thor_inverse_matches.yar filename == “sethc.exe” CC BY-NC 4.0

MIT License. Copyright (c) 2020-2021 Strontic.