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Microsoft Security Intelligence
300 entries found. Displaying page 1 of 15.
Updated on Aug 16, 2011
Win32/Mydoom is a family of mass-mailing worms that spread through e-mail. Some variants also spread through peer-to-peer networks. The worm acts as a backdoor Trojan, which allows an attacker to access the infected system. This backdoor may be used to distribute other malicious software. Some variants of Win32/Mydoom launch denial of service (DoS) attacks against specific Web sites. 
Alert level: severe
Updated on Oct 07, 2008
Alert level: severe
Updated on Jan 07, 2020
Alert level: severe
Updated on Oct 07, 2008
Alert level: severe
Updated on May 03, 2005
Win32/Mydoom.P@mm is a mass-mailing worm that sends itself to e-mail addresses it finds on the infected computer. The worm also creates a backdoor Trojan.
Also detected as: Win32/Mydoom.P.Worm (CA)
Alert level: severe
Updated on Dec 04, 2007
Worm:Win32/Mydoom.AX@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 gathers from the infected computer and from Web site queries. The worm runs when a user opens the e-mail attachment. The worm also has a backdoor component that monitors a TCP port for commands from attackers.
Also detected as: Win32/Mydoom.R(ESET)
Alert level: severe
Updated on Mar 07, 2005
Win32/Mydoom.AN@mm is a mass-mailing worm that targets certain versions of Microsoft Windows. The worm spreads by e-mailing itself to computers and through the ICQ Instant Messenger program. It also disables certain security-related software such as the Windows Firewall and certain antivirus programs.
Also detected as: Win32/Mydoom.AL!Worm(CA)
Alert level: severe
Updated on Feb 07, 2005
Win32/Mydoom.AA@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.
Also detected as: Win32/Mydoom.AD.Worm(CA)
Alert level: severe
Updated on Jan 10, 2005
Win32/Mydoom.AB@mm is a mass-mailing worm that sends itself to e-mail addresses it finds on the infected computer.
Also detected as: Win32/Mydoom.AA.Worm(CA)
Alert level: severe
Updated on May 17, 2005
Win32/Mydoom.G@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 listening on TCP ports 80 and 1080. The worm attempts a denial-of-service (DoS) attack against www.symantec.com.
Also detected as: Win32/Mydoom.G.Worm (CA)
Alert level: severe
Updated on Apr 11, 2011
Win32/Mydoom.H@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 listening on TCP ports 80 and 1080. The worm attempts a denial-of-service (DoS) attack against www.symantec.com.
Also detected as: Win32/MyDoom.H.Worm(CA)
Alert level: severe
Updated on Jan 10, 2005
Win32/Mydoom.I@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.
Also detected as: Win32/MyDoom.I.Worm(CA)
Alert level: severe
Updated on Jan 10, 2005
Win32/Mydoom.J@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.
Also detected as: Win32/Mydoom.j.Worm (CA)
Alert level: severe
Updated on Jan 10, 2005
Win32/Mydoom.K@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.
Also detected as: Win32/MyDoom.K.Worm(CA)
Alert level: severe
Updated on Apr 23, 2007
Worm:Win32/Mydoom.L@mm is a mass-mailing worm that sends itself to e-mail addresses it finds on the infected computer. The worm also spreads by making copies of itself in folders containing certain strings commonly associated with peer-to-peer file sharing programs. In addition, Worm:Win32/Mydoom.L@mm opens a backdoor on TCP port 1042.
Also detected as: Win32/MyDoom.L.Worm (CA)
Alert level: severe
Updated on Jan 10, 2005
Win32/Mydoom.R@mm is a mass-mailing worm that sends itself to e-mail addresses it finds on the infected computer.
Also detected as: Win32/MyDoom.R.Worm(CA)
Alert level: severe
Updated on Mar 07, 2005
Win32/Mydoom.AO@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 the infected computer.
Also detected as: Win32/Mydoom.Variant!Worm(CA)
Alert level: severe
Updated on Apr 11, 2005
Win32/Mydoom.BE@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 gathers from the infected computer and from Web site queries. The worm is activated when a user opens the attachment. The worm also monitors a TCP port for commands from attackers.
Alert level: severe
Updated on Apr 11, 2005
Win32/Mydoom.BF@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 gathers from the infected computer and from Web site queries. The worm is activated when a user opens the attachment. The worm also monitors a TCP port for commands from remote attackers.
Alert level: severe
Updated on Apr 11, 2005
Win32/Mydoom.BG@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 gathers from an infected computer and from Web site queries. The worm also spreads by exploiting the DCOM RPC vulnerability that is fixed in Microsoft Security Bulletin MS03-026.
Alert level: severe