Worms

A computer worm is a self-replicating computer program. It uses a network to send copies of itself to other nodes (computers on the network) and it may do so without any user intervention. Unlike a virus, it does not need to attach itself to an existing program. Worms almost always cause at least some harm to the network, if only by consuming bandwidth, whereas viruses almost always corrupt or devour files on a targeted computer.

Many worms that have been created are only designed to spread, and don’t attempt to alter the systems they pass through. A “payload”, however, is code designed to do more than spread the worm it might delete files on a host system, encrypt files in a cryptoviral extortion attack, or send documents via e-mail. A very common payload for worms is to install a backdoor in the infected computer to allow the creation of a zombie (an Internet accessible computer compromised by a hacker) under control of the worm author. Networks of such machines are often referred to as botnets and are very commonly used by spam senders for sending junk email or to cloak their website’s address.

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There are currently 965 articles listed on worms.

Name	Threat Level	Detection Count	Date
Email-Worm.Win32.Runouce.b			October 19, 2010
Email-Worm.Win32.Zhelatin.ml	9/10	0	March 16, 2011
Email-Worm.Win32/Tanatos.M			June 11, 2009
Email-Worm.Xanax	9/10	0	November 9, 2007
Email-Worm.Zafi	9/10	0	October 12, 2007
Emold Worm			November 1, 2010
Flame			August 14, 2012
Folstart	5/10	0	November 14, 2012
FUvirus.exe			July 21, 2009
Gaobot	9/10	0	August 23, 2008
Generic Dropper.xn			July 29, 2011
Generic.dx!sve			June 8, 2010
Graboid			October 17, 2019
H-Worm			September 7, 2015
HackTool.WebPhishing			April 28, 2010
Hary.A	5/10	0	April 19, 2012
Helkern Worm			July 16, 2009
HIDDENEXT/Worm.Gen	5/10	0	May 17, 2013
Honditost			May 10, 2011
I-Worm.Brontok.CJ			February 23, 2010
I-Worm.Chir.B	7/10	0	March 12, 2010
I-Worm.Generic			June 6, 2008
I-Worm.Netsky.Q1			May 6, 2010
IM Worm.Win32.Sohanad.bm			April 20, 2011
IM-Worm.Win32.Agent.mg			January 21, 2010

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