Adventures in Asymmetric Warfare: Fighting the AV Vendors

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Presented at BSidesAugusta 2014 by

Will Schroeder

As a co-founder and principal developer of the Veil-Framework, the speaker has spent a considerable amount of time over the past year and a half researching AV-evasion techniques. This talk will briefly cover the problem space of antivirus detection, as well as the reaction to the initial release of Veil-Evasion, a tool for generating AV-evading executables that implements much of the speaker’s research. We will trace through the evolution of the obfuscation techniques utilized by Veil-Evasion’s generation methods, culminating in the release of an entirely new payload language class, as well as the release of a new ..NET encryptor. The talk will conclude with some basic static analysis of several Veil-Evasion payload families, showing once and for all that antivirus static signature detection is dead.