Troj/Pushdo-AI is a password stealing Trojan for the Windows platform.
When first run Troj/Pushdo-AI installs the following file which is detected separately as Troj/Rootkit-FJ:
<System>\drivers\nicsk32.sys
The file nicsk32.sys is registered as a new service named "nicsk32". Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\nicsk32