Review rev_93c84be6f31843929a055cec5668d624

{
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "high"
  },
  "files": [
    {
      "path": "builder/prebuilt-nasm/rsaz-avx2.obj",
      "hash": "blake3:82ff2b6645a687cc4bf2989e71e56c05b0e0fa266a4680333f8b42107929c3ec",
      "summary": "Reviewed the prebuilt COFF object `builder/prebuilt-nasm/rsaz-avx2.obj`, which contains AWS-LC x86-64 AVX2 RSA big-number routines (`rsaz_1024_*`) plus normal unwind metadata and a single expected Windows runtime import for SEH. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other supply-chain indicators, and found no concrete malicious signals in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "builder/prebuilt-nasm/sha1-x86_64.obj",
      "hash": "blake3:209dd29b52a5c165f40cb04e6b08196b1a28e0333188ad143bf7758e1c630a70",
      "summary": "Reviewed the PE/COFF object `builder/prebuilt-nasm/sha1-x86_64.obj`; it contains Windows x86-64 SHA-1 block-data-order assembly variants (nohw, SHAEXT, SSSE3, AVX, AVX2) and the expected `RtlVirtualUnwind` exception-handling import. I found no concrete indicators of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "builder/prebuilt-nasm/sha256-x86_64.obj",
      "hash": "blake3:eb1ef675d7a6e835d9cf2d7de10df1e99a8dc3d3c199801d00538cb3197d0992",
      "summary": "Reviewed the x86-64 COFF object `builder/prebuilt-nasm/sha256-x86_64.obj`; its symbols, sections, relocations, and embedded strings are consistent with a normal SHA-256 assembly object plus Windows SEH unwind metadata. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "builder/prebuilt-nasm/sha512-x86_64.obj",
      "hash": "blake3:fa1e9ff6f77ba112706833c86d0a3283476da6c2dfb009c9e6604f1f95a5d695",
      "summary": "Reviewed `builder/prebuilt-nasm/sha512-x86_64.obj`, a Windows x86-64 COFF object containing SHA-512 block-processing assembly plus SEH metadata. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "builder/prebuilt-nasm/trampoline-x86_64.obj",
      "hash": "blake3:5eeb728b9466a4f72832b2d0c947d174945ad1c0213990d4c1421702625a301e",
      "summary": "Reviewed `builder/prebuilt-nasm/trampoline-x86_64.obj`, a prebuilt COFF object containing AWS-LC x86_64 ABI test trampoline and register-clobber routines plus unwind metadata. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in the object or its symbol/disassembly content.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}