Collaborate Disseminate
For most people, you turn on your computer, and it starts the operating system. However, the reality is much more complex as [Thasso] discovered. Even modern x86 chips start in …read more Continue reading A 64-bit x86 Bootloader from Scratch
The memory map of the original 8086 computer with its base and extended memory made the original PC rather straightforward, but also posed countless issues for DOS-based applications as they …read more Continue reading Breaking Through The 1 MB Barrier In DOS With Unreal Mode And More
The microprocessor feature which probably most enables the computing experience we take for granted today is protected mode. A chip with the required hardware can run individual software processes in …read more Continue reading Protected Mode On A Z80! (Almost)
Adobe warned on Thursday that attackers are exploiting a previously unknown security hole in its Flash Player software to break into Microsoft Windows computers. Adobe said it plans to issue a fix for the flaw in the next few days, but now might be a good time to check your exposure to this still-ubiquitous program and harden your defenses.
Adobe said a critical vulnerability (CVE-2018-4878) exists in Adobe Flash Player 28.0.0.137 and earlier versions. Successful exploitation could potentially allow an attacker to take control of the affected system. Continue reading Attackers Exploiting Unpatched Flaw in Flash
Microsoft published guidance for Windows admins on how to safely disable Dynamic Data Exchange (DDE) fields in Office that are being used to spread malware in email-based attacks. Continue reading Microsoft Provides Guidance on Mitigating DDE Attacks