Cybercriminals can use it to protect any malware that they want to deliver. For example, it allows the configuration of the encryption method and key as well as where the payload should be injected.Īs you can see, a crypter is a completely independent module. That's why authors provide a GUI to configure all the options in a very easy way.
These products are designed to cater to simple criminals, those who do not need (or want) a deep technical knowledge. Below, you can see examples of crypters being advertised on the black market and the tricks they use: Underground crypters, created to defend malware against antivirus/anti-malware products, are sold in typical cybercriminal hangouts. They may also add some icons and metadata that make the sample look like a legitimate product. They try to deceive pattern-based or even behavior-based detection engines - often slowing down the analysis process by masquerading as a harmless program then unpacking/decrypting their malicious payload. A crypter's role is basically to be the first - and most complex - layer of defense for the malicious core. Most modern malware samples, in addition to built-in defensive techniques, are protected by some packer or crypter. We will also present some example of identifying and unpacking a malware crypter.
Today, we will study some examples to make sure that everyone knows what this type of tools are and why they are dangerous.
#Fud crypter install#
Recently, two suspects were arrested for selling Cryptex Reborn and other FUD tools (helping to install malware in a Fully UnDetectable way).
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