Win32/Mytob is a family of mass-mailing worms that targets computers running certain versions of Microsoft Windows. The worm can spread by exploiting Windows vulnerabilities that are fixed by installing Microsoft Security Updates MS03-026 and MS04-011. The worm can also spread by sending a copy of itself through e-mail, MSN Messenger, or Windows Messenger. 

Win32/Jeans.A@m is an e-mail worm that tries to register itself as a debugger for Task Manager, Registry Editor, and other legitimate system applications.

Worm:Win32/Lovgate.B@mm is a mass-mailing worm that sends itself as an e-mail attachment to addresses found on the infected computer. To spread via networks and file shares, Worm:Win32/Lovgate.B@mm copies itself to writeable network shares and shares protected by weak user name and password pairs. The worm opens a backdoor on infected systems and may send system passwords and other sensitive information to the worm's author.

Win32/Mydoom.A@mm is a mass-mailing worm that sends itself to e-mail addresses it finds on the infected computer. The worm also installs a .dll file that acts as a backdoor. After February 1, 2004, the worm attempts a denial-of-service (DoS) attack against www.sco.com.

Win32/Netsky.P@mm is a mass-mailing worm that targets computers running certain versions of Microsoft Windows. The worm sends itself to e-mail addresses that it finds on the infected computer. The worm is activated when a user opens an e-mail attachment that contains the worm. The worm also exploits a vulnerability that is fixed in Microsoft Security Bulletin MS01-020.

Worm:Win32/Slenfbot.AAA is a worm that can spread via MSN Messenger, and may spread via removable drives. The worm also contains backdoor functionality that allows unauthorized access to an affected machine. This worm does not spread automatically upon installation, but must be ordered to spread by a remote attacker.

Worm:Win32/Zotob.Q is a network worm that exploits the Plug-and-Play vulnerability discussed in Microsoft Security Bulletin MS05-039. The worm targets computers running Microsoft Windows 2000 that do not have MS05-039 installed. The worm can also infect computers running other versions of Windows operating systems if it is delivered through e-mail, instant messaging, or some other means.

Win32/Parite is a polymorphic file infecting virus that infects all portable EXE and SCR files found on local and shared network drives.

Worm:Win32/Stration.X is a mass-mailing email worm that sends itself to addresses obtained from a wide range of file types found on the infected system. The e-mail message composed by the worm may masquerade as a failure message or as a scanning tool. Worm:Win32/Stration.X also acts as a Trojan downloader, attempting to download a file from a remote website. The downloaded file is typically another variant of the Win32/Stration family.

Worm:Win32/Scrimge.B is a worm that spreads via MSN Messenger. It also contains backdoor functionality that allows unauthorized access to the affected machine.

Worm:Win32/Brontok.BU@mm is a mass-mailing e-mail worm that spreads by sending a copy of itself as an e-mail attachment to e-mail addresses that it gathers from files on the infected computer. Worm:Win32/Brontok.BU@mm can also copy itself to USB and pen drives. This worm can disable antivirus and security software, immediately terminate certain applications, and cause Windows to restart immediately when certain applications run. This worm may conduct denial of service (DoS) attacks against certain Web sites.

Worm:Win32/Mytob.W@mm is a worm that spreads via email, via exploit of a Windows vulnerability, and via MSN or Windows messenger. The worm also contains backdoor functionality that allows unauthorized access to an affected machine.

Worm:Win32/Slenfbot.AD is a worm that can spread via MSN Messenger. The worm also contains backdoor functionality that allows unauthorized access to an affected machine. This worm does not spread automatically upon installation, but must be ordered to spread by a remote attacker.

Worm:Win32/Slenfbot.AP is a worm that can spread via MSN Messenger. The worm also contains backdoor functionality that allows unauthorized access to an affected machine. This worm does not spread automatically upon installation, but must be ordered to spread by a remote attacker.

Worm:Win32/Slenfbot.BN is a worm that can spread via MSN Messenger. The worm also contains backdoor functionality that allows unauthorized access to an affected machine. This worm does not spread automatically upon installation, but must be ordered to spread by a remote attacker.

Worm:Win32/Slenfbot.BU is a worm that can spread via MSN Messenger. The worm also contains backdoor functionality that allows unauthorized access to an affected machine. This worm does not spread automatically upon installation, but must be ordered to spread by a remote attacker.

Worm:Win32/Slenfbot.BM is a worm that can spread via MSN Messenger. The worm also contains backdoor functionality that allows unauthorized access to an affected machine. This worm does not spread automatically upon installation, but must be ordered to spread by a remote attacker.

Worm:Win32/Netsky.W.dam is a detection for damaged or corrupted samples of the mass-mailing worm Worm:Win32/Netsky.N@mm.

Worm:Win32/Exvee.A is a worm that spreads via removable drives and file infection. It may also modify web-related files in order to insert a link to a malicious website, and can download and execute arbitrary files, including updates for the worm, and additional malware.