i am getting this i have never received any issues with lspdf till now  it might be the scripthook not sure just never seen this before only pops up once the cript hook it executed not sure what to think about this is not a good trojan's to get

Trojan:Script/Sabsik.FL.B!ml

This might be a false positive, I had this exact message show when I was putting lspdfr and scripthook in the game files.

This is a false positive likely previously stated. If you are unsure or skeptical, you can run a scan via Windows Defender by visiting Microsoft's Support Article on how to do so, assuming you are on Windows. 

 

Though, most antivirus software flags LSDPFR and the such as a virus, which is stated on the LSPDFR download page in an information notice. My advice would be to add an exclusion to your GTAV main directory. Again assuming you are on Windows, you can do this by visiting Windows Settings -> Privacy & Security -> Virus & Threat Protection -> Manage Settings -> Add or remove exclusions

 

Spoiler

If this for some reason does not work, you can disable your antivirus or firewall, launch the game, and turn it back on. Though never disable it fully otherwise, and this should only be temporarily off.