Polymorphic code: Difference between revisions

Revision as of 09:06, 8 December 2005

Revision as of 22:26, 17 December 2005

Line 1:

In computer terminology, '''polymorphic code''' is code that mutates while keeping the original [[algorithm]] intact.

The first known polymorphic virus was written by Mark Washburn. The virus, called [[1260 (virus)]], was written in 1990.

Polymorphic code was invented in 1992 by the [[Bulgarians|Bulgarian]] [[security cracking|cracker]] [[Dark Avenger]] (a [[pseudonym]]) as a means of avoiding pattern recognition from antivirus-software.

PolymorphicA codemore known polymorphic virus was invented in 1992 by the [[Bulgarians|Bulgarian]] [[security cracking|cracker]] [[Dark Avenger]] (a [[pseudonym]]) as a means of avoiding pattern recognition from antivirus-software.

This technique is sometimes used by [[computer virus]]es, [[shellcode]]s and [[computer worm]]s to hide their presence.

Line 62 ⟶ 64:

== See also ==

* [[Timeline of notable computer viruses and worms]]

* [[Metamorphic code]]

* [[Self-modifying code]]