Blaster (computer worm)

Blaster (computer worm)

The Blaster Worm (also known as Lovsan or Lovesan) was a computer worm that spread on computers running the Microsoft operating systems: Windows XP and Windows 2000, during August 2003.

The worm was first noticed and started spreading on August 11, 2003. The rate that it spread increased until the number of infections peaked on August 13, 2003. Filtering by ISPs and widespread publicity about the worm curved the spread of Blaster.

On August 29, 2003, Jeffrey Lee Parson, an 18-year-old from Hopkins, Minnesota was arrested for creating the B variant of the Blaster worm; he admitted responsibility and was sentenced to an 18-month prison term in January 2005.

Effects

The worm was programmed to start a SYN flood on August 15, 2003 against port 80 of windowsupdate.com, thereby creating a distributed denial of service attack (DDoS) against the site. The damage to Microsoft was minimal as the site targeted was windowsupdate.com instead of windowsupdate.microsoft.com to which it was redirected. Microsoft temporarily shut down the targeted site to minimize potential effects from the worm.

The worm spread by exploiting a buffer overflow in the DCOM RPC service on the affected operating systems, for which a patch had been released one month earlier in [http://www.microsoft.com/technet/security/bulletin/MS03-026.mspx MS03-026] and later in [http://www.microsoft.com/technet/security/bulletin/MS03-039.mspx MS03-039] .

The worm contains two messages hidden in strings. The first:

"I just want to say LOVE YOU SAN!!"
is why the worm is sometimes called the Lovesan worm.The second:
"billy gates why do you make this possible ? Stop making money"
"and fix your software!!"
is a message to Bill Gates, the co-founder of Microsoft and the target of the worm.

ide effects

Although the worm can only spread on systems running Windows 2000 or Windows XP (32 bit) it can cause instability in the RPC service on systems running Windows NT, Windows XP (64 bit), and Windows Server 2003. In particular, the worm does not spread in Windows Server 2003 because it was compiled with the /GS switch, which detected the buffer overflow and shut the RPCSS process down. [http://blogs.msdn.com/michael_howard/archive/2004/05/23/139987.aspx] If the worm detects a connection to the Internet (regardless of dial-up or broadband), this can even lead to the system becoming so unstable that it displays the following message and then restarts (usually after 60 seconds):

cquote|1=System Shutdown:

This system is shutting down. Please save all work in progress and log off. Any unsaved changes will be lost. This shutdown was initiated by NT AUTHORITYSYSTEM

Time before shutdown: hh:mm:ss

Message:

Windows must now restart because the Remote Procedure Call(RPC) Service terminated unexpectedly.

This was the first indication many users had an infection; it often occurred a few minutes after every startup on compromised machines. A simple resolution to stop countdown is to run "shutdown -a" command.

ee also

*Timeline of notable computer viruses and worms
*List of convicted computer criminals
*Spam

External links

* [http://www.cert.org/advisories/CA-2003-20.html CERT Advisory CA-2003-20]
* [http://securityresponse.symantec.com/avcenter/venc/data/w32.blaster.worm.html Security Response site from Symantec]
* [http://www.vnunet.com/vnunet/news/2123165/fbi-arrests-stupid-blaster-b-suspect Article from Vnunet]
* [http://www.microsoft.com/security/incident/blast.mspx What You Should Know About Blaster]
* [http://www.eweek.com/article2/0,1895,1896373,00.asp Two Years Later, Blaster Worm Still Squirming]
* [http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_security_notice09186a00801aedd6.html More information for IT pros about Blaster Worm Virus from the Cisco Systems web site]
* [http://healyourchurchwebsite.com/2003/08/18/linux-based-approach-to-fixing-msblaster-worm-infection/ Linux-based approach to fixing MSBlaster Worm infection]


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Sasser (computer worm) — Sasser is a computer worm that affects computers running vulnerable versions of the Microsoft operating systems Windows XP and Windows 2000. Sasser spreads by exploiting the system through a vulnerable network port (as do certain other worms).… …   Wikipedia

  • Blaster (компьютерный червь) — У этого термина существуют и другие значения, см. Бластер (значения). Blaster, так же известный как Lovsan, Lovesan или MSBlast  компьютерный червь, распространявшийся на компьютерах, работавших с операционными системами Windows 2000 и… …   Википедия

  • Blaster — may refer to: * Blaster, a generic term for a raygun in science fiction. * Blaster (Star Wars), a specific weapon type used in the fictional Star Wars universe. * Blaster worm, a computer worm. * Blaster (flamethrower), a South African automobile …   Wikipedia

  • List of computer criminals — Hacker Adrian Lamo (left) with contemporaries Kevin Mitnick (center) and Kevin Poulsen …   Wikipedia

  • Helpful worm — A Helpful worm is variant on a computer worm which delivers its payload by doing helpful actions instead of malicious actions. Welchia was a major example of a helpful worm utilizing the same exploit which caused the Blaster worm. Infected… …   Wikipedia

  • Timeline of computer viruses and worms — Contents 1 1960–1969 1.1 1966 2 1970–1979 2.1 1 …   Wikipedia

  • Timeline of notable computer viruses and worms — This is a timeline of noteworthy computer viruses and worms.1970 1979Early 1970s* Creeper virus was detected on ARPANET infecting the Tenex operating system. Creeper gained access independently through a modem and copied itself to the remote… …   Wikipedia

  • Script kiddie — In hacker culture, a script kiddie (as opposed to speed kiddie Fact|date=August 2008), occasionally script bunny , skiddie , script kitty , script running juvenile (SRJ) , or similar) is a derogatory term used for an inexperienced malicious… …   Wikipedia

  • Computers and Information Systems — ▪ 2009 Introduction Smartphone: The New Computer.       The market for the smartphone in reality a handheld computer for Web browsing, e mail, music, and video that was integrated with a cellular telephone continued to grow in 2008. According to… …   Universalium

  • Хронология компьютерных вирусов и червей — Здесь приведён хронологический список появления некоторых известных компьютерных вирусов и червей, а также событий, оказавших серьёзное влияние на их развитие. Содержание 1 2012 2 2011 3 2010 4 2009 …   Википедия

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”