This dangerous program, Win32.Shadow, has a variety of functions depending on the needs of the attacker. It can be an e-mail flooder, which means it will clog a network or your PC by sending out massive quantities of e-mails.
You can also find it spamming from your PC. It is able to do this by gaining secret access and then will use your account to send out spam e-mails to countless unsuspecting users. It is also a backdoor so if entry is gained, it will open up a port on your PC and leave you vulnerable to other malicious attacks.
Remove at once.
Manually remove this scourge of a program by terminating all processes, files, folders and registry entries. If this process is confusing to you, you are not alone. Manual removal is difficult. For a fast and automatic solution, you have ZookaWare PC Cleaner. ZookaWare PC Cleaner can easily rid you of Win32.Shadow and ALL spyware in one fell swoop. ZookaWare PC Cleaner scans, detects and eliminates spyware in an all-in-one system. An easy-to-use application, you will be protected with ZookaWare PC Cleaner.