Troj/Dload-HA is a multi-component Trojan which has the ability to download and execute code.
Troj/Dload-HA includes functionality to create batch scripts and steal confidential information.
When Troj/Dload-HA is installed the following innocuous files are created:
<Temp>\setup.bat
<Windows>\360.ico
<Windows>\firefox.ico
<Windows>\Maxthon.ico
<Windows>\TheWorld.ico
<Windows>\TTraveler.ico
The files shown above may simply be deleted.