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Writing Your First Bootloader for Better Analyses

Security Affairs

When you press the power button you are providing the right power to every electronic chips who needs it. We also need to tell to the “linker” where the code starts (-e main). I am a computer security scientist with an intensive hacking background. How the PC boot process works ? Actually the boot process is super easy.

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Analyzing the APT34’s Jason project

Security Affairs

Jason.exe representing the graphic user interface and the main visible tool. The attacker used an old version of Microsoft.Exchange.WebService.dll tagged as 15.0.0.0 Last Microsoft Exchange WebServices dll version dates to 2015. I am a computer security scientist with an intensive hacking background. Jason Project GUI.

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Writing Your First Bootloader for Better Analyses

Security Affairs

When you press the power button you are providing the right power to every electronic chips who needs it. We also need to tell to the “linker” where the code starts ( -e main ). Following the source “booting source” code.code16 # use 16 bits.global main. main: mov $0x0002, %ax int $0x10 #set 80×25 text mode.

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Malware researcher reverse engineered a threat that went undetected for at least 2 years

Security Affairs

There is an interesting difference although, this stage builds up a new in-memory stage (let’s call Stage 4) by adding static GZIpped contents at the end of encrypted section (light blue tag on image). I am a computer security scientist with an intensive hacking background. It is a defacto replica of Stage 2.