The C:Program Files (x86)SplashtopSplashtop Software Updateruninst.exe process creates a folder at C:WindowsTemp~nsu.tmp and copies itself to it as Au_.exe. The C:WindowsTemp~nsu.tmpAu_.exe file is automatically launched as SYSTEM when the system reboots or when a standard user runs an MSI repair using Splashtop Streamer’s Windows Installer. Since the C:WindowsTemp~nsu.tmp folder inherits permissions from C:WindowsTemp and Au_.exe is susceptible to DLL hijacking, standard users can write a malicious DLL to it and elevate their privileges.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Software_updater | Splashtop | * | 1.5.6.21 (including) |