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Showing 8 challenges
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Binary String Hunt
Extract the hardcoded C2 endpoint from a malware binary's strings output.
Decompiled License Check
Extract the hardcoded license key from a decompiled function.
XOR Key Recovery
Recover the single-byte XOR key used to encode a malware string.
Anti-Debug Bypass
Identify the x86 instruction patch to invert an IsDebuggerPresent anti-debug check.
PowerShell Decode
Decode an obfuscated Base64 PowerShell command to identify the dropped filename.
Reverse the Dropper
Decode a ROT-13 obfuscated C2 URL extracted from a malware dropper.
Shadow File Hash Algorithm
Identify the password hashing algorithm from a /etc/shadow hash prefix.
Packer Identification
Identify the packer and the CLI command to unpack a malware sample.