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Researchers have proposed a lightweight defense system named GuardION that can prevent Rowhammer attacks on ARM systems by isolating DMA buffers with DRAM-level guard rows. The newly proposed mitigation focuses on limiting the capabilities of an attacker's uncached allocations. Expensive fine-grained isolation can be applied for each DMA allocation, and GuardION isolates buffers with two guard rows: one at the ‘top’ and another at the ‘bottom’.
Cryptocurrency Clipboard Hijacker variant
A new sample of Cryptocurrency Clipboard Hijacker has been found monitoring over 2.3 million wallet addresses. This specially designed malware can recognize wallet address in the memory of infected computers and use it for fraudulent activities such as hijacking transactions. In order to stay safe, users are advised to update their security software.
OSX.Dummy macOS malware
Researchers have unearthed a macOS malware dubbed OSX.Dummy, that targets cryptocurrency investors using both Slack and Discord chat platforms. The malware is capable of triggering remote arbitrary code execution. The attack initiates within crypto related Slack or Discord chat groups by impersonating admins or key people.
Posted on: July 02, 2018
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