Trojan:Win32/Popureb.E is a malicious program that is unable to spread of its own accord. It may perform a number of actions of an attacker's choice on an affected computer.

Trojan:Win32/Popureb.A is a trojan that modifies the hard disk's MBR (Master Boot Record). It changes Internet Explorer's start page and also displays unwanted advertisements.

Trojan:Win32/Popureb.B is a trojan that displays advertisements, and modifies the affected user's Internet Explorer start page.

Trojan:DOS/Popureb.A is a detection for a malformed MBR (Master Boot Record) generated by Trojan:Win32/Popureb.A. It loads the encrypted malicious code and stores it as disk sectors when the affected computer boots.

VirTool:WinNT/Popureb.A is a component of Win32/Popureb. It uses a low level disk driver hook to prevent a malicious Master Boot Record (MBR) and other malicious data stored as disk sectors from being changed.

Win32/Nsag.B is a data-stealing Trojan. The Trojan is created when certain code is injected into wininet.dll, which is a Windows system file. When a user tries to send data to a Web site, code in Win32/Nsag.B may cause code in another malicious DLL on the computer to capture the user data and send it to an attacker.

Win32/Valla.2048 is a virus that appends itself to executable files on an infected computer.

Win32/Vulgar.A is a file infector that may overwrite files on local or mapped drives.

Trojan:Win32/Bube.G is a Trojan that lowers security settings stored in the registry, attempts to download programs from a remote Web site and disables features in the Windows Security Center.