The base64_substring tool is designed to assist malware analysts in searching through base64-encoded samples by generating comprehensive search patterns. The tool enumerates all possible base64 encodings for a given search term, accounting for different alignment positions and padding scenarios that can occur when text is encoded within larger data structures. It automatically generates YARA rules that check for these various encoding possibilities, enabling analysts to detect specific strings or patterns within base64-encoded malware samples regardless of their position or alignment within the encoded data. The tool addresses the challenge of searching for known strings in base64-encoded content where the encoding can vary depending on the surrounding data and byte alignment.
FEATURES
EXPLORE BY TAGS
SIMILAR TOOLS
yextend extends Yara's functionality by automatically handling archived and compressed content inflation, enabling pattern matching on files buried within multiple layers of archives.
A program to manage yara ruleset in a database with support for different databases and configuration options.
Falcon Sandbox is a malware analysis framework that provides in-depth static and dynamic analysis of files, offering hybrid analysis, behavior indicators, and integrations with various security tools.
An open source .NET deobfuscator and unpacker that restores packed and obfuscated assemblies by reversing various obfuscation techniques.
Valkyrie is a sophisticated file verdict system that enhances malware detection through behavioral analysis and extensive file feature examination.
A static analysis tool for PE files that identifies potential malicious indicators through compiler detection, packing analysis, signature matching, and suspicious string identification.
A binary analysis and management framework for organizing and analyzing malware and exploit samples, and creating plugins.