.. /msedgewebview2.exe
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msedgewebview2.exe is the executable file for Microsoft Edge WebView2, which is a web browser control used by applications to display web content.

Paths:

C:\Program Files (x86)\Microsoft\Edge\Application\114.0.1823.43\msedgewebview2.exe

Resources:

https://medium.com/@MalFuzzer/one-electron-to-rule-them-all-dc2e9b263daf

Acknowledgements:

Uriel Kosayev (@MalFuzzer)
Hai Vaknin (@VakninHai)
Tamir Yehuda (@Tamirye94)
Matan Bahar (@Bl4ckShad3)

Detections:

Sigma: https://github.com/SigmaHQ/sigma/blob/e1a713d264ac072bb76b5c4e5f41315a015d3f41/rules/windows/process_creation/proc_creation_win_susp_electron_execution_proxy.yml
IOC: msedgewebview2.exe spawned with any of the following: --gpu-launcher, --utility-cmd-prefix, --renderer-cmd-prefix, --browser-subprocess-path

Execute

This command launches the Microsoft Edge WebView2 browser control without sandboxing and will spawn calc.exe as its subprocess.
```
msedgewebview2.exe --no-sandbox --browser-subprocess-path="C:\Windows\System32\calc.exe"
```
Use case
Proxy execution of binary

Privileges required
Low privileges

Operating systems
Windows 10, Windows 11

ATT&CK® technique
T1218.015
This command launches the Microsoft Edge WebView2 browser control without sandboxing and will spawn calc.exe as its subprocess.
```
msedgewebview2.exe --utility-cmd-prefix="calc.exe"
```
Use case
Proxy execution of binary

Privileges required
User

Operating systems
Windows 10, Windows 11

ATT&CK® technique
T1218.015
This command launches the Microsoft Edge WebView2 browser control without sandboxing and will spawn calc.exe as its subprocess.
```
msedgewebview2.exe --disable-gpu-sandbox --gpu-launcher="calc.exe"
```
Use case
Proxy execution of binary

Privileges required
User

Operating systems
Windows 10, Windows 11

ATT&CK® technique
T1218.015
This command launches the Microsoft Edge WebView2 browser control without sandboxing and will spawn calc.exe as its subprocess.
```
msedgewebview2.exe --no-sandbox --renderer-cmd-prefix="calc.exe"
```
Use case
Proxy execution of binary

Privileges required
User

Operating systems
Windows 10, Windows 11

ATT&CK® technique
T1218.015