A virus that changes its binary code each time it infects a new file. Without an identifiable pattern to match, it is extremely difficult to discover under normal methods. Also called a "stealth virus," one way to detect it is by its actions (see behavior blocking). See virus.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- A conversation with Trend Micro's Eva Chen
- A conversation with Trend Micro's Eva ChenTrend Micro Has a low detection of Malware threats-Subpar protectionIn certified Lab tests Trend Micro Internet Security 2009 failed to detect Polymorphic Malware icsa Labs, and had a dismal detection rate of 69% In recent [2009] Testing (a decent Antivirus/Antimalware program catches at least...
- Discussion threads 2009-05-20
- Will the Feds take down a big hacker group in 2008?
- Will the Feds take down a big hacker group in 2008?Here's a Safe BetTeh feds will take down somebody and claim to have taken down a big (huge, major) hacker group.The question will be whether that is trueAI think soThe danger is that given the links between virus writers and...
- Discussion threads 2007-12-05
- Will the Feds take down a big hacker group in 2008?
- This is the season for predictions and Websense is out with its top 10 predictions and a couple of them are quite interesting. One of the more interesting ones is the prediction more like hope that the government nabs a big hacking group in 2008. Here's the...
- Blog posts 2007-12-05
- IMDS: Intelligent Malware Detection System
- The proliferation of malware has presented a serious threat to the security of computer systems. Traditional signature-based antivirus systems fail to detect polymorphic and new, previously unseen malicious executables. In this paper, resting on the analysis of Windows API execution sequences called by PE files, the paper develops the Intelligent...
- White papers 2007-08-15
- Zero Hour Virus Outbreak Protection: A Key Layer in Complete Enterprise Email Security
- Every enterprise has some form of anti-virus protection in place, yet malware penetration in the enterprise has become commonplace. Virus writers have identified the weak-point of traditional AV engines - the time it takes to develop protection for new viruses - and have exploited it to their advantage by flooding...
- White papers 2007-07-31
- Dr.Web Antivirus plus Antispam 4.33 (Windows)
- Download a compact and fast anti-virus solution for PC. Dr.WEB is not just an Anti-virus product, It has the ability to go beyond other products on the market by being able to detect, cure and or delete malicious programs such as, but not limited too: Mass-mailing worms, E-mail viruses, File...
- Software downloads 2006-11-16
- Polymorphic Virus Detection Technology
- Viruses have become a big threat nowadays, however there plenty of software products which can be suggested as protection tools. The aim of this paper is to describe briefly the way viruses work in general, giving emphasis to polymorphic viruses. Several algorithms of protection are defined in the paper to...
- White papers 2006-04-05
- AIM worm plays nasty new trick
- AIM worm plays nasty new trickThis may not help.Even though a user sent them a link and said that it is intentional, you may be getting a virus/work in your computer. It's about common sense, so I won't be clicking in any links anymore, just like if you get phishing...
- Discussion threads 2005-10-28
- IM worm speaks your language
- IM worm speaks your languageRE: IM worm speaks your languageBut what about Linux and Macintosh systems that are running MS Messenger clients as well?Oh never mind I know better! Just wanted to tweak the MS crowd today!]:)This Is Beginning To Get A Bit FrighteningI spoke in 1999 of viruses and...
- Discussion threads 2005-08-24
- Details of Microsoft antivirus software leak out
- Details of Microsoft antivirus software leak outNo, thank you--"The second antivirus tool will analyze computer systems to asses sic whether they have been hit by a virus in the past and attempt to give end users an idea of how at risk their computers might be for future problems."--Again, Microsoft...
- Discussion threads 2004-07-28
- Watch your backup
- Watch your backupDoomsday ScenarioI always wondered what would happen if someone who really knew what they were doing created a cross platform polymorphic virus admittedly not easy to do that was fairly benign, except it very gradually corrupted data. Just in minor ways. A character substitution here and...
- Discussion threads 2004-01-28
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