Welcome to the Virus Encyclopedia of Panda Security.
Downloader.MDW is a Trojan, which although seemingly inoffensive, can actually carry out attacks and intrusions.
It reduces the security level of the computer:
it notifies the attacker that the computer has been compromised and is ready to be used maliciously; it changes system permissions, decreasing the security level.
It uses several methods in order to avoid detection by antivirus companies:
Downloader.MDW uses the following propagation or distribution methods: