• File Path: C:\SysinternalsSuite\RegDelNull.exe
  • Description: Delete Registry keys with embedded Nulls


Type Hash
MD5 BCB5CCFC0A924A222FB88BA35BC623B9
SHA1 68E4A057BBEFE71A02D864223167BABD57DFF28E
SHA256 E39DA31D87C447CFA9C5B1251DF92FF418F9E873997E76CCAB1CCCA72C9D65D9
SHA384 2DA6A7A3A6BD249656C0FFC231DB8F7C99DD5F6A9622F2BDE2D384528BC4F8B61C6639AD1425A24E87E751C709D1D640
SHA512 1C6B0BDF6B5838AC17D47DA2CDED525E0DCB4507A11C52EC64106F9F776B16935D32E8ADB52EA5DC5D04EBDECCE99F9518A14B56188D1AECC794AEDA2A2A67CF
SSDEEP 6144:dnKg/FRoY3QcS2HTL0WpRl0ozPg1KXVcZw7e0LSJ/:dKg/FZ3QB2HTLRpj02EjutQ/
IMP 3139255730B05278872883E46827DE09
PESHA1 3B37509FF24E901B3239DB0756D1772F36569DFE
PE256 D82A3E738228D5288B24D56A8672DD97B4FC3AB7C9EDDE1AFFFD778027C0BFC4

Runtime Data

Usage (stdout):

RegDelNull v1.11 - Delete Registry keys with embedded Nulls
Copyright (C) 2005-2016 Mark Russinovich
Sysinternals -

Usage: regdelnull <path> [-s]
  path    Registry path e.g. hklm\software
  -s      Recurse into subkeys
  -y      Suppress prompting for confirmation before deleting null-embedded keys.
          Do not display the startup banner and copyright message.

Example: regdelnull -s hklm
This command scans all keys under HKLM.

Usage (stderr):

The handle is invalid.

Loaded Modules:



  • Status: Signature verified.
  • Serial: 3300000187721772155940C709000000000187
  • Thumbprint: 2485A7AFA98E178CB8F30C9838346B514AEA4769
  • Issuer: CN=Microsoft Code Signing PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
  • Subject: CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

File Metadata

  • Original Filename: RegDelNull.exe
  • Product Name: Sysinternals RegDelNull
  • Company Name: Sysinternals -
  • File Version: 1.11
  • Product Version: 1.11
  • Language: English (United States)
  • Legal Copyright: Copyright (C) 2005-2016 Mark Russinovich
  • Machine Type: 32-bit

File Scan

  • VirusTotal Detections: 0/71
  • VirusTotal Link:

Possible Misuse

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

Source Source File Example License
malware-ioc misp-dukes-operation-ghost-event.json "" © ESET 2014-2018
malware-ioc misp_invisimole.json "" © ESET 2014-2018

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