base64_substring
A tool that generates YARA rules to search for specific terms within base64-encoded malware samples by enumerating all possible encoding variations.
Free40
Free40
base64_substring
A tool that generates YARA rules to search for specific terms within base64-encoded malware samples by enumerating all possible encoding variations.
Data verified Apr 2026
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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.
base64_substring FAQ
Common questions about base64_substring including features, pricing, alternatives, and user reviews.
base64_substring is A tool that generates YARA rules to search for specific terms within base64-encoded malware samples by enumerating all possible encoding variations. It is a Security Operations solution designed to help security teams with YARA, Pattern Matching, Rule Generation.
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