Viper is a binary analysis and management framework. Its fundamental objective is to provide a solution to easily organize your collection of malware and exploit samples as well as your collection of scripts you created or found over the time to facilitate your daily research.
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Viper is now using BitHub system to reward developers and contributors with Bitcoins. You can read more details about it here and you can start donating Bitcoins to this wallet 15xrTWmduftdHezxiCZyC1yFLo5RJXaAZS. This is the current reward per commit: