--- Name: msedgewebview2.exe Description: msedgewebview2.exe is the executable file for Microsoft Edge WebView2, which is a web browser control used by applications to display web content. Author: Matan Bahar Created: 2023-06-15 Commands: - Command: msedgewebview2.exe --no-sandbox --browser-subprocess-path="C:\Windows\System32\calc.exe" Description: This command launches the Microsoft Edge WebView2 browser control without sandboxing and will spawn calc.exe as its subprocess. Usecase: Proxy execution of binary Category: Execute Privileges: Low privileges MitreID: T1202 OperatingSystem: Windows 10, Windows 11 - Command: msedgewebview2.exe --utility-cmd-prefix="calc.exe" Description: This command launches the Microsoft Edge WebView2 browser control without sandboxing and will spawn calc.exe as its subprocess. Usecase: Proxy execution of binary Category: Execute Privileges: User MitreID: T1202 OperatingSystem: Windows 10, Windows 11 - Command: msedgewebview2.exe --disable-gpu-sandbox --gpu-launcher="calc.exe" Description: This command launches the Microsoft Edge WebView2 browser control without sandboxing and will spawn calc.exe as its subprocess. Usecase: Proxy execution of binary Category: Execute Privileges: User MitreID: T1202 OperatingSystem: Windows 10, Windows 11 - Command: msedgewebview2.exe --no-sandbox --renderer-cmd-prefix="calc.exe" Description: This command launches the Microsoft Edge WebView2 browser control without sandboxing and will spawn calc.exe as its subprocess. Usecase: Proxy execution of binary Category: Execute Privileges: User MitreID: T1202 OperatingSystem: Windows 10, Windows 11 Full_Path: - Path: C:\Program Files (x86)\Microsoft\Edge\Application\114.0.1823.43\msedgewebview2.exe Detection: - IOC: 'msedgewebview2.exe spawned with any of the following: --gpu-launcher, --utility-cmd-prefix, --renderer-cmd-prefix, --browser-subprocess-path' Resources: - Link: https://medium.com/@MalFuzzer/one-electron-to-rule-them-all-dc2e9b263daf Acknowledgement: - Person: Uriel Kosayev Handle: '@MalFuzzer' - Person: Hai Vaknin Handle: '@VakninHai' - Person: Tamir Yehuda Handle: '@Tamirye94' - Person: Matan Bahar Handle: '@Bl4ckShad3'