Compiling instruction for FastFinder on Linux

FastFinder was originally designed for Windows platform but it also work perfectly on Linux. Unlike other Go programs, if you want to compile or run it from source, you will need to install some libraries and compilation tools. Indeed, FastFinder is strongly dependent of libyara, go-yara and CGO. Here's a little step by step guide:

Before installation

Please ensure having:

• Go >= 1.17
• GOPATH / GOOS / GOARCH correctly set
• administrator rights to insall

Compile YARA

1/ download YARA latest release source tarball (https://github.com/VirusTotal/yara) 2/ Make sure you have automake, libtool, make, gcc and pkg-config installed in your system. 2/ unzip and compile yara like this:

tar -zxf yara-<version>.tar.gz
cd <version>.
./bootstrap.sh
./configure
make
make install

3/ Run the test cases to make sure that everything is fine:

make check

Configure CGO

CGO will link libyara and compile C instructions used by Fastfinder (through go-yara project). Compiler and linker flags have to be set via the CGO_CFLAGS and CGO_LDFLAGS environment variables like this:

export CGO_CFLAGS="-I<YARA_SRC_PATH>/libyara/include"
export CGO_LDFLAGS="-L<YARA_SRC_PATH>/libyara/.libs -lyara"

You're ready to Go!

You can compile FastFinder with the following command:

go build -tags yara_static -a -ldflags '-s -w' .