ropshell> use ad7efaf31af566d1a10706728d08e008 (download)
name         : libhttpd.dll (x86_64/PE)
base address : 0x6ff01000
total gadgets: 3485

ropshell> suggest "sp lifting"
> 0x6ff3f549 : add rsp, 0x10; ret
> 0x6ff3f549 : add rsp, 0x10; ret
> 0x6ff04bae : add rsp, 0x28; ret
> 0x6ff0532e : add rsp, 0x38; ret
> 0x6ff0b93a : add rsp, 0x48; ret
> 0x6ff220ed : add rsp, 0x58; ret