• File Path: C:\Program Files (x86)\Microsoft Silverlight\5.1.50918.0\coregen.exe
  • Description: Microsoft Common Language Runtime native compiler
  • Comments: Flavor=Retail


Type Hash
MD5 3BF709AEDF5042C39515756FB72E9EC0
SHA1 5F536E6701D928DD262D475CD6987777B9FA5E33
SHA256 412A6B755B2029126D46E7469854ADD3FAA850F5A4700DD1E078FCC536CA418A
SHA384 9F4EA6CE74672F10C3D2C024C834EAFD226E352255018E3B82B7BE5E6961F3245C5AF232F8C026A402F0E3EFC782CDA7
SHA512 82B28BC4F52B2CC8C6FCFB92C7D236F46C397DF4A860F6795C5D69AC92E82A0406EA66F61D63B2FA9FA2F8CE01A7975E6F28D69E1E2FAFF8462AB70EAD674C3C
SSDEEP 768:6EDUAnMskbT0UxBCuWG/oDS0THDhshjSfhFB67z6GYMMtwylKCVWFTBlRL7++i+:TCbhk+IVLm2fhFBoz4/cFTB++R
IMP 9959601E87162D788749D80BA2EA8FF2
PESHA1 CAA5E552B562D6E2EB1454B9F6E41FC6406631E4

Runtime Data

Usage (stdout):

Microsoft (R) CoreCLR Native Image Generator - Version 5.1.50918.0
Copyright (c) Microsoft Corporation.  All rights reserved.

Usage: coregen [args] <assembly name>

    /? or /help     - Display this screen
    /nologo         - Prevents displaying the logo
    /L <coreclr>    - Specify path to coreclr.dll

Loaded Modules:

C:\Program Files (x86)\Microsoft Silverlight\5.1.50918.0\coregen.exe


  • Status: Signature verified.
  • Serial: 33000001B1DDEDBA54E965B85F0001000001B1
  • Thumbprint: 9DC17888B5CFAD98B3CB35C1994E96227F061675
  • Issuer: CN=Microsoft Code Signing PCA, 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: coregen.exe
  • Product Name: Microsoft Silverlight
  • Company Name: Microsoft Corporation
  • File Version: 5.1.50918.0 built by: SL_V5_SVC
  • Product Version: 5.1.50918.0
  • Language: English (United States)
  • Legal Copyright: Microsoft Corporation. All rights reserved.
  • Machine Type: 32-bit

File Scan

  • VirusTotal Detections: 0/69
  • VirusTotal Link:

Possible Misuse

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

Source Source File Example License
LOLBAS Coregen.yml Name: coregen.exe  
LOLBAS Coregen.yml Description: Binary coregen.exe (Microsoft CoreCLR Native Image Generator) loads exported function GetCLRRuntimeHost from coreclr.dll or from .DLL in arbitrary path. Coregen is located within "C:\Program Files (x86)\Microsoft Silverlight\5.1.50918.0\" or another version of Silverlight. Coregen is signed by Microsoft and bundled with Microsoft Silverlight.  
LOLBAS Coregen.yml - Command: coregen.exe dummy_assembly_name  
LOLBAS Coregen.yml - Command: coregen.exe /L C:\folder\evil.dll dummy_assembly_name  
LOLBAS Coregen.yml - Path: C:\Program Files\Microsoft Silverlight\5.1.50918.0\coregen.exe  
LOLBAS Coregen.yml - Path: C:\Program Files (x86)\Microsoft Silverlight\5.1.50918.0\coregen.exe  
LOLBAS Coregen.yml - IOC: coregen.exe loading .dll file not in "C:\Program Files (x86)\Microsoft Silverlight\5.1.50918.0\"  
LOLBAS Coregen.yml - IOC: coregen.exe loading .dll file not named coreclr.dll  
LOLBAS Coregen.yml - IOC: coregen.exe command line containing -L or -l  
LOLBAS Coregen.yml - IOC: coregen.exe command line containing unexpected/invald assembly name  
LOLBAS Coregen.yml - IOC: coregen.exe application crash by invalid assembly name  

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