It installs an Internet Explorer browser which replaces thoe one installed in the affected system in order to monitor the websites accessed by users and to harvest all kind of confidential data. It reaches the computer in a PowerPoint presentation in order to pass itself off as an unoffensive file.

Windows XP/2000/NT/ME/98/95

Nabload.DSB is a Trojan that downloads to the computer several components designed to steal confidential information from users, like passwords, banking data or usernames, among others.

In order to do so, it installs an Internet Explorer browser which replaces the one installed in the system. This way, it monitors the websites accessed by users and collects the information entered in them, posing a threat to users' privacy.

Nabload.DSB reaches the computer in a file which seems a PowerPoint presentation in order to deceive users, as it is actually an executable file.

Nabload.DSB is easy to recognize, as it reaches the computer in a PowerPoint presentation with the following appearance:

This file can reach the computer through different means: email, social networks and instant messaging programs, among others, in a message similar to the following:

When this file is run, a slideshow presentation is displayed and the Trojan is installed in the computer.

The following image belongs to one of the slideshows: