McAfee > Theat Center > Virus Detail Page

Overview

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.

Characteristics

This is a downloader trojan that is written in MSVC.  There are several variants of the trojan exist.  Newer variants require the latest DATs for detection and cleaning.

When run, the trojan creates registry run key to load itself at Windows startup:

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
  (trojan file name) = (trojan file path)

It registers itself as a local server using a randomly generated CLSID:

• HKEY_CLASSES_ROOT\CLSID\{random CLSID}\LocalServer "
  (Default)" = (trojan file path)

The trojan downloads/executes additional trojan/adware from a specific website.

The trojan also displays the following message box periodically:

Once clicked "yes", it opens an advertising web site using IE.

Symptoms

• Existence of registry keys/files mentioned above
• Pop-up dialog box displayed.

Method of Infection

N/A. Downloaders are not viruses, and as such do not themselves contain any method to replicate. However they may themselves be downloaded by other viruses and/or Trojans to be installed on the user's system.

Many of these additionally are mass spammed by the author to entice people into double-clicking on them.

Alternatively they may be installed by visiting a malicious web page (either by clicking on a link, or by the website hosting a scripted exploit which installs the Downloader onto the user's system with no user interaction.

Removal

All Users:
Use current engine and DAT files for detection and removal.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

Additional Windows ME/XP removal considerations

Variants

Variants

N/A

All Information

Overview -

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.

Characteristics

Characteristics -

This is a downloader trojan that is written in MSVC.  There are several variants of the trojan exist.  Newer variants require the latest DATs for detection and cleaning.

When run, the trojan creates registry run key to load itself at Windows startup:

• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
  (trojan file name) = (trojan file path)

It registers itself as a local server using a randomly generated CLSID:

• HKEY_CLASSES_ROOT\CLSID\{random CLSID}\LocalServer "
  (Default)" = (trojan file path)

The trojan downloads/executes additional trojan/adware from a specific website.

The trojan also displays the following message box periodically:

Once clicked "yes", it opens an advertising web site using IE.

Symptoms

Symptoms -

• Existence of registry keys/files mentioned above
• Pop-up dialog box displayed.

Method of Infection

Method of Infection -

N/A. Downloaders are not viruses, and as such do not themselves contain any method to replicate. However they may themselves be downloaded by other viruses and/or Trojans to be installed on the user's system.

Many of these additionally are mass spammed by the author to entice people into double-clicking on them.

Alternatively they may be installed by visiting a malicious web page (either by clicking on a link, or by the website hosting a scripted exploit which installs the Downloader onto the user's system with no user interaction.

Removal -

Removal -

All Users:
Use current engine and DAT files for detection and removal.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

Additional Windows ME/XP removal considerations

Variants

Variants -

N/A