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This YARA rule detects the SideTwist backdoor by identifying specific byte patterns associated with its core functionalities. These functionalities include anti-sandbox detection, collection of host information, communication with a command and control (C2) server, parsing C2 responses, downloading files from the C2, and replying to the C2 server. The rule requires all these distinct patterns to be present within a PE file (identified by the 'MZ' header) to trigger a detection, aiming to minimize false positives.
Yara rule that detects SideTwist backdoor.