I-Worm.Leave

Worm Leave is a complex Internet worm, that spreads by e-mail in messages with infected attachments. It uses own applicationming language that lets it to update itself by the Internet and control other PCs infected with some viruses. Attackers can fully control an infected computer using this language and modify, remove, read, etc. all files in it. The Leave worm also tries to attack several well known web servers.