Fighting EPO viruses

Friday, 1 July 2005, 2:57 AM EST

This short article describes the so-called Entry-Point Obscuring (EPO) virus coding technique, primarily through a direct analysis of the Win32.CTX.Phage virus. The reader should know the basics of IA-32 assembly and the main elements of the Portable Executable (PE) file structure to fully understand this article.

By Piotr Bania at SecurityFocus.

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