sethc.exe

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

Hashes

Type Hash
MD5 0899A093B921E175DCF7EA5EBCC65306
SHA1 B4FFBF9B6404FB089C9C9781F773ECD02FD0B7BC
SHA256 DF4CC0EB831CC48D45F21B280C1D78800B5AE107A65070C63DE506D3AB5ADEC5
SHA384 4F7AC01306342B72BAA5AA15CDEB211709190179B8AD5DEF1639250B09DA5A9F899FAFC0178965C9D54CDA8EB16D3644
SHA512 F94AED4ABA2EE2E89FCAB05D99FA5D37B9173A0BFD45DE3B35C6497DCC02E48C5270BE5C1B53596206AF7CA789DAAE4E2B9C380E47BA97154ED74AA369DBC8FF
SSDEEP 1536:It+nB7SR0oZGHcb9q+HIt+wwtnK7sOK/qRLb48sm9+W/6H5lNdzDv:vB7SRUHwq+HNwEOK/q2dLH5lX7

Signature

  • Status: Signature verified.
  • Serial: 330000023241FB59996DCC4DFF000000000232
  • Thumbprint: FF82BC38E1DA5E596DF374C53E3617F7EDA36B06
  • 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: 10.0.18362.1 (WinBuild.160101.0800)
  • Product Version: 10.0.18362.1
  • Language: English (United States)
  • Legal Copyright: Microsoft Corporation. All rights reserved.

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 proc_creation_win_install_reg_debugger_backdoor.yml - 'sethc.exe' DRL 1.0
sigma proc_creation_win_stickykey_like_backdoor.yml - 'sethc.exe' DRL 1.0
sigma proc_creation_win_sticky_keys_unauthenticated_privileged_cmd_access.yml CommandLine: 'copy /y C:\windows\system32\cmd.exe C:\windows\system32\sethc.exe' DRL 1.0
sigma registry_event_stickykey_like_backdoor.yml - '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sethc.exe\Debugger' 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

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