The field of password cracking has evolved by leaps an bounds over the last decade with the introduction of new cracking techniques, more advanced software and significantly faster hardware. One area which I find most fascinating is rule-based cracking. An attacker can develop a set of word mangling rules (e.g. substitute all 'a's to '@'s, upper-case every third letter, etc.) in order to attack non-random passwords which use slightly modified dictionary words. The purpose of this research is to develop an automated method of analyzing a large body of leaked passwords in order to come up with a list of frequently used words and rules to make up passwords. Read more.
The article discusses capabilities and application of Nmap Scripting Engine for the purpose of vulnerability scanning. By adapting code snippets covered here, you will be able to quickly develop, scan and generate reports for new vulnerabilities without waiting for mainstream scanners. Read more.
A solution to an exercise in Corelan Tutorial 10 on writing DEP and ASLR bypassing exploits. The solution illustrates grabbing leaked kernel32 address from memory, calculating an offset to VirtualProtect() and at last setting up a ROP chain to make a memory location with shellcode executable. Read more.
A solution to a small exercise in Corelan's Tutorial 9 on writing Windows 32-bit shellcode. The solution illustrates some techniques in removing null-bytes from a sample shellcode as well as a few tricks to keep the shellcode modular and easy to modify. Read more.
A collection of techniques on Windows SEH exploitation. Specifically the article covers methods of reliable exploit development by getting from a successfully overwritten pointer to Exception Handler (SEH) to the pointer to the Next Exception Handler (NSEH) struct. Read more.