$ cat writeup.md…
$ cat writeup.md…
hackerlab
Task: UPX-packed PE64 with oversized .data section containing a decoy JPEG dropper and a hidden XOR-encrypted PE binary. Solution: unpack UPX, discover hidden PE via single-byte XOR 0xFA, extract it, identify AES-128-CBC parameters from OpenSSL-linked code, decrypt embedded image to reveal flag.
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