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Nimda Virus
Technical name Avast: Win32:Nimda
Avira: W32/Nimda.eml
BitDefender: Win32.Nimda.A@mm
ClamAV: W32.Nimda.eml
Eset: Win32/Nimda.A
Grisoft: I-Worm/Nimda
Kaspersky: Net-Worm.Win32.Nimda or I-Worm.Nimda
McAfee: Exploit-MIME.gen.ex
Sophos: W32/Nimda-A
Symantec: W32.Nimda.A@mm
Type Multi-vector worm
Point of Origin China (alleged)
Operating system(s) affected Windows 95XP
Written in English

Nimda is a computer worm, also a file infector. It quickly spread, surpassing the economic damage caused by previous outbreaks such as Code Red. Nimda utilized several types of propagation techniques and this caused it to become the Internet’s most widespread virus/worm within 22 minutes.

The worm was released on September 18, 2001.[1] Due to the release date, exactly one week after the attacks on the World Trade Center and Pentagon, some media quickly began speculating a link between the virus and Al Qaeda, though this theory ended up proving unfounded.

Nimda affected both user workstations (clients) running Windows 95, 98, Me, NT, 2000 or XP and servers running Windows NT and 2000.

The worm's name origin comes from the reversed spelling of it, which is "admin".

F-Secure found the text[2] "Concept Virus(CV) V.5, Copyright(C)2001 R.P.China" in the Nimda code, suggesting its country of origin.

Methods of infection[edit]

Nimda was so effective partially because it—unlike other infamous malware like the Morris worm or Code Red—uses five different infection vectors:

  • via email
  • via open network shares
  • via browsing of compromised web sites
  • exploitation of various Microsoft IIS 4.0 / 5.0 directory traversal vulnerabilities. (Both Code Red and Nimda were hugely successful exploiting well known and long solved vulnerabilities in the Microsoft IIS server.[3])
  • via back doors left behind by the "Code Red II" and "sadmind/IIS" worms.

See also[edit]

References[edit]

  1. ^ https://www.cert.org/historical/advisories/CA-2001-26.cfm CERT first released an advisory on the worm on September 18, 2001
  2. ^ http://www.f-secure.com/v-descs/nimda.shtml
  3. ^ http://seifried.org/lasg/introduction-to-security/

External links[edit]


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Nimda — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
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599 news items

 
Register
Sat, 17 Sep 2011 02:01:01 -0700

Saturday marks the tenth anniversary of the infamous Nimda worm. Nimda (admin spelled backwards) was a hybrid worm that spread via infected email attachments and across websites running vulnerable versions of Microsoft's IIS web server software.
 
Naked Security
Thu, 15 Sep 2011 19:40:21 -0700

Boy, did Nimda show itself. It could spread every-which-way, and it did: by sending itself out to your email contacts; by breaking into web servers and infecting files all over your website; by spreading automatically across your network; and by ...

ITmedia

ITmedia
Thu, 26 Feb 2015 17:07:30 -0800

実はNECでも、過去に同じような事情で悩み、有効で効率的なセキュリティ対策を実現するため、20年にわたり苦労を重ねてきました。そうした取り組みの中でも、特に大きな転機となったのが、今から十数年前、2000年初頭に猛威を振るったワームNimda/Code Redへの対応 ...

Deadline.com

Deadline.com
Mon, 08 Dec 2014 16:04:29 -0800

Jose Kuervo • on Dec 8, 2014 4:04 pm. Just remember this comment when the show turns out to be awesome. Can't wait to learn some more about Jor-El I and Nimda, Jor- El parents. nerdrage • on Dec 8, 2014 4:04 pm. I want a TV series about the second ...

TechTarget

TechTarget
Thu, 25 Sep 2014 07:06:32 -0700

"That places it into Code Red/Nimda territory. A workable bug that can exploit public Web servers is scary. We don't know for sure, Rob doesn't know for sure, but it looks very, very possible," Mogull said. "Potential worms are like staring at the ...

Threatpost

Threatpost
Thu, 09 Oct 2014 12:23:56 -0700

The monthly patch cycle was just one output from TwC, which was formed in the ashes of Code Red, Nimda and hundreds of other network worms and email viruses that ran roughshod through vulnerabilities in Windows and other Microsoft software in the ...
 
Windows IT Pro (blog)
Tue, 25 Nov 2014 08:52:30 -0800

Cybercriminals are relentless in their efforts to cash in by compromising your network. It's a reality that's unlikely to change for the better—that's why your approach to security needs to change, Marc Thaler writes. Whenever you're searching for a ...
 
DailyFinance
Thu, 11 Sep 2014 10:04:49 -0700

NEW YORK -- Home Depot's data breach could wind up being among the largest ever for a retailer, but that may not matter to its millions of customers. On Monday, the nation's largest home-improvement chain confirmed a theft that could have gone back as ...
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