vss_ps.dll

  • File Path: C:\Windows\system32\vss_ps.dll
  • Description: Microsoft Volume Shadow Copy Service proxy/stub

Hashes

Type Hash
MD5 4CBBDB697B983E69FE1AC43D571D5843
SHA1 CE96212E0C9D06E01748F546782F2DE7F6C1614C
SHA256 760351D62579C07ABB4C61ABD285E51409E0EFC6D59DDA1D5EF9E9080BB7CC83
SHA384 368CD0733CFF13592949D9E3DEABF8F4207271FE6E198D027C9C5AC9EA8FF3942FF4ABAC4EC127ADD0A47298D5D92BEB
SHA512 0B123503C0877F5DF1A6B50FB5A3BCCD4864993AFF9265580BC88BCD8282D093700E38AB115C07C61D6A081751C6F1863B1869E362C599F7612C352317B8E27B
SSDEEP 768:CI05vmSsCEhDpi75m8O18OiKiFsV8YDW+V:CI4+SsC0DpoA8O18OGFsV8Yi
IMP C5B469536773ACBE4A39A962769B5BF4
PESHA1 24CCF490FBEB567A90965D54B9EED38EF2AADE48
PE256 0884B2C32A20DB7B90F537FCF6AB6199E827EE8781AB9393888086309DCFEC23

DLL Exports:

Function Name Ordinal Type
DllUnregisterServer 4 Exported Function
GetProxyDllInfo 5 Exported Function
DllRegisterServer 3 Exported Function
DllCanUnloadNow 1 Exported Function
DllGetClassObject 2 Exported Function

Signature

  • Status: Signature verified.
  • Serial: 330000026551AE1BBD005CBFBD000000000265
  • Thumbprint: E168609353F30FF2373157B4EB8CD519D07A2BFF
  • 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: VSS_PS.DLL
  • Product Name: Microsoft Windows Operating System
  • Company Name: Microsoft Corporation
  • File Version: 10.0.19041.1 (WinBuild.160101.0800)
  • Product Version: 10.0.19041.1
  • Language: English (United States)
  • Legal Copyright: Microsoft Corporation. All rights reserved.
  • Machine Type: 64-bit

File Scan

  • VirusTotal Detections: 0/70
  • VirusTotal Link: https://www.virustotal.com/gui/file/760351d62579c07abb4c61abd285e51409e0efc6d59dda1d5ef9e9080bb7cc83/detection/

Possible Misuse

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

Source Source File Example License
sigma image_load_suspicious_vss_ps_load.yml title: Image Load of VSS_PS.dll by Uncommon Executable DRL 1.0
sigma image_load_suspicious_vss_ps_load.yml description: Detects the image load of vss_ps.dll by uncommon executables using OriginalFileName datapoint DRL 1.0
sigma image_load_suspicious_vss_ps_load.yml - '\vss_ps.dll' DRL 1.0

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