Windows 2003/XP/2000/NT/ME/98/95

Downloader.JDS is a Trojan, which although seemingly inoffensive, can actually carry out attacks and intrusions.

It affects productivity, preventing tasks from being carried out:

• In the affected computer: causes system slowdowns.

It reduces the security level of the computer: it opens one or more ports to allow remote access to the computer and takes action that compromises user confidentiality.

Downloader.JDS accesses several websites to download files, which it then runs. These can be any type of file, although they are normally malware.

Downloader.JDS uses the following propagation or distribution methods:

• Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
• Via Internet, exploiting remote vulnerabilities: attacking random IP addresses, in which it tries to insert a copy of itself by exploiting one or more vulnerabilities.