ZARATHUSTRA: Extracting WebInject Signatures from Banking Trojans

Provided by: Politecnico di Bari
Topic: Security
Format: PDF
Modern trojans are equipped with functionality, called WebInject that can be used to silently modify a web page on the infected end host. Given its flexibility, WebInject-based malware is becoming a popular information-stealing mechanism. In addition, the structured and well-organized malware-as-a-service model makes revenue out of customization kits, which in turns leads to high volumes of binary variants. Analysis approaches based on memory carving to extract the decrypted webinject.txt and config.bin files at runtime make the strong assumption that the malware will never change the way such files are handled internally, and therefore are not future proof by design.

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