BillCipher is a website and IP address information gathering tool. The tool gathers a series of information including DNS record, Whois information, GeoIP data, Subnet record , open ports information, live pages (links) available on the target web application, server information, Cloudflare information, plugins, HTTP Header, Host Header, reverse IP information, shared DNS servers, IP […]
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About three weeks ago, we published our second CrackMe . It triggered a lot of interest, and we got many high-quality write-ups. Choosing the winner was really difficult! In this post, I am going to summarize the contest and comment on the received submissions. CrackMe 2 challenge The topic of the challenge was Python, and its goal was to teach how the Python scripts can be packaged and integrated with native executables. The involved Python script was not obfuscated, and the user was supposed to adapt it for the purpose of finding the solution. The CrackMe was made of three components, cooperating with each other: a Python script (converted to EXE with the help of PyInstaller) a native DLL, loaded with the help of the above script a Python script unpacked by the DLL and injected into Actxproxy.dll In the first level, the user was supposed to find a valid PIN to decode a URL, from which the next level was downloaded. The next level was a native DLL that was inject...