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- Q7086831 subject Q7215707.
- Q7086831 abstract "An oligomorphic engine is generally used by a computer virus to generate a decryptor for itself in a way comparable to a simple polymorphic engine. It does this by randomly selecting each piece of the decryptor from several predefined alternatives.The pieces used to build the decryptor are usually too common to be detected with signatures. However, most oligomorphic viruses aren't able to generate more than just a few hundred different decryptors, so detecting them with simple signatures is still possible. Another method to detect an oligomorphic decryptor is to make a signature for each possible piece of code, group pieces that can substitute each other together and scan the file for a chain of decryptor pieces from alternating groups. Emulation may be used to detect the virus, but it can take more resources than necessary.".
- Q7086831 wikiPageWikiLink Q1138423.
- Q7086831 wikiPageWikiLink Q1150647.
- Q7086831 wikiPageWikiLink Q1152477.
- Q7086831 wikiPageWikiLink Q1292360.
- Q7086831 wikiPageWikiLink Q2165944.
- Q7086831 wikiPageWikiLink Q2798820.
- Q7086831 wikiPageWikiLink Q3504901.
- Q7086831 wikiPageWikiLink Q485.
- Q7086831 wikiPageWikiLink Q6823026.
- Q7086831 wikiPageWikiLink Q7215707.
- Q7086831 wikiPageWikiLink Q950981.
- Q7086831 comment "An oligomorphic engine is generally used by a computer virus to generate a decryptor for itself in a way comparable to a simple polymorphic engine. It does this by randomly selecting each piece of the decryptor from several predefined alternatives.The pieces used to build the decryptor are usually too common to be detected with signatures.".
- Q7086831 label "Oligomorphic code".