Troj/Dloader-EI is a downloader Trojan for the Windows platform.
Troj/Dloader-EI will download and execute a number of files from a remote location.
W32/Forbot-AY is a worm which attempts to spread to remote network shares. It also contains backdoor Trojan functionality, allowing unauthorised remote access to the infected computer via IRC channels while running in the background as a service process.
W32/Forbot-AY attempts to spread to network machines using various exploits including the LSASS vulnerability (see MS04-011). The worm may also spread via IRC channels.
W32/Forbot-AY may act as a proxy, delete network shares and steal keys for various software products