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32 or 64 bits Malware?, (Mon, Aug 22nd)

published on 2022-08-22 05:03:23 UTC by
Content:
Last week, I was teaching FOR610 in Amsterdam. When we review ASM, we have a module about the difference in 32-bits VS. 64-bits code (how parameters are passed to functions/API calls, calling convention, etc). It's important to have an understanding of this because most computers are build around a 64-bits CPU today. But attackers are still deploying a lot of 32-bits malware for compatibility reasons and also because this code can be run without (if you respect Microsoft guidelines and API's) problems. A student asked me if there was a lot of native 64-bits malware in the wild. Is there a real trend? I decided to have a look at a bunch of samples and see practically if this trend was real.
Article: 32 or 64 bits Malware?, (Mon, Aug 22nd) - published about 2 years ago.

https://isc.sans.edu/diary/rss/28968   
Published: 2022 08 22 05:03:23
Received: 2022 08 22 06:23:06
Feed: SANS Internet Storm Center, InfoCON: green
Source: SANS Internet Storm Center, InfoCON: green
Category: Alerts
Topic: Vulnerabilities
Views: 1

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