Some antivirus don't like go binaries, the windows version is flagged as malicious, if you are suspicious just compile yourself.
# Run this command in your terminal to verify the SHA256 checksum:
echo "aa5972357bace021f82131a6b8ae4802f7740565f838c23722a563ef395097a6 *aws-bash" | shasum -a 256 --check
echo "c14303c4ae3619cc7e5da8ee8793b93addf382a853da94601dc946842dc0b4e3 *aws-bash.exe" | shasum -a 256 --check
Full Changelog: https://github.com/knuppe/aws-bash/commits/v0.1.0