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InfoSec Week 49, 2017

The 'Janus' Android vulnerability (CVE-2017-13156) allows attackers to modify the code in applications without affecting their signatures. The root of the problem is that a file can be a valid APK file and a valid DEX file at the same time. The vulnerability allows attackers to inject malware into legitimate application and avoiding detection.

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InfoSec Week 20, 2017

Researchers published WannaCry ransomware decryption tool for older Windows (XP, 2003, 7). It uses bug in the Windows Crypto API which does not immediately erase private key. The application is crawling the computer memory, looking for the prime numbers which can divide the public key used for the encryption.

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