« Posts under x86 ASM

Huffman encoder in 8086 ASM

August 24, 2010 / posted in Coding, Compression, x86 ASM / No Comments

While working on my 8086 emulator, I figured I might write something nice in 8086 assembly as well. This is what I came up with. »Read More

Clever tricks against antiviruses

April 19, 2010 / posted in Coding, Cryptography, Tutorials, x86 ASM / 22 Comments

I bet you have come across some software you’ve made which you didn’t want the AV to pick up. This article explains how to import from DLLs without having to call GetProcAddress, and also how to encrypt your data section. Anti-viruses rely heavily on their heuristics, if all other (signature) scans fail. The patterns they search for in your executable, are the functions being imported, and the order they are being called. »Read More