Virus Encyclopedia

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Downloader.JNQ
Threat LevelDamageDistribution

At a glance Tech details | Solution


Common name:	Downloader.JNQ
Technical name:	Trj/Downloader.JNQ
Threat level:	Low
Type:	Trojan
Effects:	It allows to get into the affected computer. It generates a large amount of network traffic activity with the consequent consumption of bandwidth. It carries out actions that decrease the security level of the computer. It downloads files from several websites. It uses stealth techniques to avoid being detected by the user. It spreads , across the Internet.
Affected platforms:	Windows XP/2000/NT/ME/98/95
First detected on:	July 16, 2006
Detection updated on:	July 16, 2006
Statistics	No
Proactive protection:	Yes, using TruPrevent Technologies

Brief Description

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

In the local network: it generates a large amount of network activity and consumes bandwidth.

It reduces the security level of the computer: it changes the security settings of Internet Explorer, decreasing its security level; it opens one or more ports to allow remote access to the computer and takes action that compromises user confidentiality.

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

It uses stealth techniques to avoid being detected by the user:

It injects itself in running processes.

Downloader.JNQ 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.