Win32/Sober.Q@mm is a mass-mailing worm that targets computers running certain versions of Microsoft Windows. The worm spreads by sending a copy of itself as an attachment to e-mail addresses found on the infected computer. The e-mail may be in English or German. The worm runs when the user opens the attachment.

Win32/Netsky.I@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. There may be no readily apparent indications that a computer is infected with this worm.

Win32/Korgo.R.worm is a network worm that targets computers running Microsoft Windows XP or Windows 2000 that do not have Microsoft Security Bulletin MS04-011 installed. The worm monitors TCP ports and opens a backdoor to allow unauthorized access to infected computers. A computer infected with this worm may crash and reboot unexpectedly.

Win32/Netsky.X@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 the attachment that contains the worm. The worm also contains a backdoor and performs denial of service (DoS) attacks against certain Web sites.

Win32/Zafi.D@mm is a mass-mailing worm that targets certain versions of Microsoft Windows. The worm sends itself to e-mail addresses that it finds on an infected machine. The worm is activated when a user opens the e-mail attachment that contains the worm. Your computer may be infected with Win32/Zafi.D@mm if you notice e-mails with a certain appearance, certain error messages, or certain file names on the infected computer.

 

Win32/Gaobot.ZP is a network worm that can spread across network connections by exploiting the vulnerability described in Microsoft Security Bulletin MS03-026. The worm has backdoor capabilities that allow attackers to control the infected computer using IRC channels. The worm also acts as a bot on the IRC network, coordinated through the IRC command, to launch massive distributed denial of service (DDoS) attacks and retrieve personal and system information.

Win32/Bropia.G.worm is a worm that targets computers running certain versions of Microsoft Windows. The worm spreads and is activated when a user opens a file that is sent through MSN Messenger or Windows Messenger. The worm drops Trojan:Win32/Pakes.C when it runs.

Win32/Bagle.AN@mm is a mass-mailing worm that targets certain versions of Microsoft Windows. The worm sends itself as an attachment to e-mail addresses that it finds on the infected computer. The worm is activated when a user opens the attachment. The worm monitors a random TCP port for instructions from remote attackers.

Win32/Mydoom.AE@mm is a mass-mailing worm that sends itself to e-mail addresses it finds on the infected computer.

Win32/Gaobot.ZN.worm is a backdoor Trojan that can spread across network connections by breaking weak passwords or by exploiting vulnerabilities described in Microsoft Security Bulletins MS01-059, MS02-061, MS03-001, MS03-007, MS03-026, or MS03-049. After the Trojan copies and runs itself on a remote computer, it connects to an IRC server to receive commands.

W32.Mimail.E@mm is a mass-mailing worm that targets computers running certain versions of Microsoft Windows. The worm sends itself as an attachment to e-mail addresses that it finds on an infected computer. The worm is activated when the user opens the attachment. The worm also launches denial of service (DoS) attacks against certain Web sites.

Win32/HLLW.Doomjuice.B is a worm that targets computers infected with the Mydoom.A or Mydoom.B worms. Doomjuice.B scans for systems listening on TCP port 3127, the backdoor port for Mydoom.A and Mydoom.B. Doomjuice.B launches a denial of service (DoS) attack against www.microsoft.com.

Win32/HLLW.Nachi.K is a network worm that targets Microsoft Windows 2000 and Windows XP. It propagates by exploiting several known vulnerabilities. It tries to download and apply security updates if it detects the operating system is a certain language version. It also tries to remove certain worms if they are on the infected system.

Worm:Win32/Gaobot.CT is a worm that can spread across network connections by breaking weak passwords or by exploiting vulnerabilities described in Microsoft Security Bulletins MS03-001, MS03-007, or MS03-026. After the Trojan copies and runs itself on a remote computer, it connects to an IRC server to receive commands.

Worm:Win32/Gaobot.AZ is a worm that can spread across network connections by breaking weak passwords or by exploiting vulnerabilities described in Microsoft Security Bulletins MS03-001, MS03-007, or MS03-026. After the Trojan copies and runs itself on a remote computer, it connects to an IRC server to receive commands.

Win32/Spybot.BA.worm is a network worm that targets certain versions of Microsoft Windows. When a computer is infected with Win32/Bropia.D.worm, that worm drops Win32/Spybot.BA.worm on the infected computer. Win32/Spybot.BA.worm in turn spreads to other computers that do not have Microsoft Security Bulletin MS04-011 (Windows LSASS buffer overflow vulnerability) installed. Win32/Spybot.BA.worm also has backdoor capabilities, which allow attackers to control an computer through an IRC channel.

Win32/Spybot.BK.worm is a network worm that targets certain versions of Microsoft Windows. When a computer is infected with Win32/Bropia.O.worm, that worm drops Win32/Spybot.BK.worm on the infected computer. Win32/Spybot.BK.worm in turn spreads to other computers that do not have Microsoft Security Bulletin MS04-011 (Windows LSASS buffer overflow vulnerability) installed. Win32/Spybot.BK.worm also has backdoor capabilities, which allow attackers to control a computer through an IRC channel.

Win32/Sober.P@mm is a mass-mailing worm that targets computers running certain versions of Microsoft Windows. The worm sends itself as an attachment to e-mail addresses that it finds on an infected computer. The worm runs when a user opens the attachment.

Win32/Randex.FK.worm is a network worm that targets computers running certain versions of Microsoft Windows. It scans randomly generated IP addresses to spread to network shares with weak passwords. After the worm infects a computer, it connects to an IRC server to receive commands from the attacker. If your computer is infected by Win32/Randex.FK worm, you may experience system performance degradation, slower network connectivity, or system crashes.