Description
This is a Trojan detection. Unlike viruses, trojans do not self-replicate. They are spread manually, often under the premise that they are beneficial or wanted. The most common installation methods involve system or security exploitation, and unsuspecting users manually executing unknown programs. Distribution channels include email, malicious or hacked web pages, Internet Relay Chat (IRC), peer-to-peer networks, etc.
Aliases
Kaspersky - Trojan-Downloader.HTML.Agent.bp
Microsoft - TrojanDownloader:HTML/Iframe.B
F-Secure - Trojan.Clicker.HTML.IFrame.W
Comodo - TrojWare.HTML.TrojanDownloader.Iframe.g
Indication of Infection
Because this is a generic detection there is no specific description of the activity undertaken by JavaScript detected under this name, however these can include malicious activity such as downloading and executing files or scripts.
Methods of Infection
Trojans do not self-replicate. They are spread manually, often under the premise that the executable is something beneficial. Distribution channels include IRC, peer-to-peer networks, newsgroup postings, email spam, etc.