Lodear

Lodear is a rapidly spreading Internet worm, which propagates through e-mail messages with attached archives containing infected executables. Once the user unpacks and runs such executable, the worm secretly installs itself to the computer and starts a spreading routine. It contacts predetermined web sites and downloads specific instructions and lists of e-mail addresses. Then it uses own mail engine to spread the infection to those addresses. Lodear also downloads and runs arbitrary executable files, some of them can be malicious. The worm automatically runs on every Windows startup.