libmwemu 0.24.4

x86 32/64bits and system internals emulator, for securely emulating malware and other stuff.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

use crate::emu;

pub fn SetFilePointer(emu: &mut emu::Emu) {
    let hfile = emu
        .maps
        .read_dword(emu.regs().get_esp())
        .expect("kernel32!SetFilePointer cannot read hFile") as u64;
    let dist_low = emu
        .maps
        .read_dword(emu.regs().get_esp() + 4)
        .expect("kernel32!SetFilePointer cannot read lDistanceToMove") as i32;
    let dist_high_ptr =
        emu.maps
            .read_dword(emu.regs().get_esp() + 8)
            .expect("kernel32!SetFilePointer cannot read lpDistanceToMoveHigh") as u64;
    let method = emu
        .maps
        .read_dword(emu.regs().get_esp() + 12)
        .expect("kernel32!SetFilePointer cannot read dwMoveMethod");

    log_red!(
        emu,
        "kernel32!SetFilePointer hFile:0x{:x} dist:{} high_ptr:0x{:x} method:{}",
        hfile,
        dist_low,
        dist_high_ptr,
        method
    );

    emu.stack_pop32(false);
    emu.stack_pop32(false);
    emu.stack_pop32(false);
    emu.stack_pop32(false);

    // Stub: just return the distance as the new pointer if high isn't used much
    emu.regs_mut().rax = dist_low as u64;
}