Check if file is in use, fix more bugs

allow executable to be ELF
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Bluzume 2021-01-26 23:20:37 +13:00 committed by GitHub
parent 5497e6d742
commit e7498114e8
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 171 additions and 10 deletions

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@ -52,6 +52,7 @@
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="FileUtil.cs" />
<Compile Include="FlashPwner.cs">
<SubType>Form</SubType>
</Compile>

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@ -0,0 +1,142 @@
using System.Runtime.InteropServices;
using System.Diagnostics;
using System;
using System.Collections.Generic;
static public class FileUtil
{
[StructLayout(LayoutKind.Sequential)]
struct RM_UNIQUE_PROCESS
{
public int dwProcessId;
public System.Runtime.InteropServices.ComTypes.FILETIME ProcessStartTime;
}
const int RmRebootReasonNone = 0;
const int CCH_RM_MAX_APP_NAME = 255;
const int CCH_RM_MAX_SVC_NAME = 63;
enum RM_APP_TYPE
{
RmUnknownApp = 0,
RmMainWindow = 1,
RmOtherWindow = 2,
RmService = 3,
RmExplorer = 4,
RmConsole = 5,
RmCritical = 1000
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
struct RM_PROCESS_INFO
{
public RM_UNIQUE_PROCESS Process;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = CCH_RM_MAX_APP_NAME + 1)]
public string strAppName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = CCH_RM_MAX_SVC_NAME + 1)]
public string strServiceShortName;
public RM_APP_TYPE ApplicationType;
public uint AppStatus;
public uint TSSessionId;
[MarshalAs(UnmanagedType.Bool)]
public bool bRestartable;
}
[DllImport("rstrtmgr.dll", CharSet = CharSet.Unicode)]
static extern int RmRegisterResources(uint pSessionHandle,
UInt32 nFiles,
string[] rgsFilenames,
UInt32 nApplications,
[In] RM_UNIQUE_PROCESS[] rgApplications,
UInt32 nServices,
string[] rgsServiceNames);
[DllImport("rstrtmgr.dll", CharSet = CharSet.Auto)]
static extern int RmStartSession(out uint pSessionHandle, int dwSessionFlags, string strSessionKey);
[DllImport("rstrtmgr.dll")]
static extern int RmEndSession(uint pSessionHandle);
[DllImport("rstrtmgr.dll")]
static extern int RmGetList(uint dwSessionHandle,
out uint pnProcInfoNeeded,
ref uint pnProcInfo,
[In, Out] RM_PROCESS_INFO[] rgAffectedApps,
ref uint lpdwRebootReasons);
/// <summary>
/// Find out what process(es) have a lock on the specified file.
/// </summary>
/// <param name="path">Path of the file.</param>
/// <returns>Processes locking the file</returns>
/// <remarks>See also:
/// http://msdn.microsoft.com/en-us/library/windows/desktop/aa373661(v=vs.85).aspx
/// http://wyupdate.googlecode.com/svn-history/r401/trunk/frmFilesInUse.cs (no copyright in code at time of viewing)
///
/// </remarks>
static public List<Process> WhoIsLocking(string path)
{
uint handle;
string key = Guid.NewGuid().ToString();
List<Process> processes = new List<Process>();
int res = RmStartSession(out handle, 0, key);
if (res != 0) throw new Exception("Could not begin restart session. Unable to determine file locker.");
try
{
const int ERROR_MORE_DATA = 234;
uint pnProcInfoNeeded = 0,
pnProcInfo = 0,
lpdwRebootReasons = RmRebootReasonNone;
string[] resources = new string[] { path }; // Just checking on one resource.
res = RmRegisterResources(handle, (uint)resources.Length, resources, 0, null, 0, null);
if (res != 0) throw new Exception("Could not register resource.");
//Note: there's a race condition here -- the first call to RmGetList() returns
// the total number of process. However, when we call RmGetList() again to get
// the actual processes this number may have increased.
res = RmGetList(handle, out pnProcInfoNeeded, ref pnProcInfo, null, ref lpdwRebootReasons);
if (res == ERROR_MORE_DATA)
{
// Create an array to store the process results
RM_PROCESS_INFO[] processInfo = new RM_PROCESS_INFO[pnProcInfoNeeded];
pnProcInfo = pnProcInfoNeeded;
// Get the list
res = RmGetList(handle, out pnProcInfoNeeded, ref pnProcInfo, processInfo, ref lpdwRebootReasons);
if (res == 0)
{
processes = new List<Process>((int)pnProcInfo);
// Enumerate all of the results and add them to the
// list to be returned
for (int i = 0; i < pnProcInfo; i++)
{
try
{
processes.Add(Process.GetProcessById(processInfo[i].Process.dwProcessId));
}
// catch the error -- in case the process is no longer running
catch (ArgumentException) { }
}
}
else throw new Exception("Could not list processes locking resource.");
}
else if (res != 0) throw new Exception("Could not list processes locking resource. Failed to get size of result.");
}
finally
{
RmEndSession(handle);
}
return processes;
}
}

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@ -106,10 +106,19 @@ namespace DontTouchMyFlash
}
}
public void PatchExe(string filepath)
public bool PatchExe(string filepath)
{
try
{
Process[] lockingProcesses = FileUtil.WhoIsLocking(filepath).ToArray();
foreach(Process proc in lockingProcesses)
{
DialogResult res = MessageBox.Show("Flash is currently in use by (" + proc.Id.ToString() + ")" + proc.ProcessName + "\nEnd Process?", "File in use :/", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
if (res == DialogResult.Yes)
proc.Kill(); // DIE HHAHA
else
return true;
}
byte[] fileData = File.ReadAllBytes(filepath);
Int64 timestampLocation = GetPositionAfterMatch(fileData, Timestamp);
@ -125,10 +134,12 @@ namespace DontTouchMyFlash
flashExes.Items.Remove(filepath);
Application.DoEvents();
progressBar.Increment(1);
return false;
}
catch(Exception e)
{
MessageBox.Show(e.Message, "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
return true;
}
}
@ -164,11 +175,13 @@ namespace DontTouchMyFlash
{
copyFlashExes.Add(flashExe);
}
bool errored = false;
foreach (string flashExe in copyFlashExes)
{
PatchExe(flashExe);
errored = PatchExe(flashExe);
}
MessageBox.Show("Patched! Your flash should work again!!!", "SUCCESS", MessageBoxButtons.OK, MessageBoxIcon.Information);
if(!errored)
MessageBox.Show("Patched! Your flash should work again!!!", "SUCCESS", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
@ -180,18 +193,23 @@ namespace DontTouchMyFlash
private void addFile_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Title = "PE Executable";
ofd.Filter = "PE Executables (*.exe, *.ocx, *.dll)|*.dll;*.exe;*.ocx";
ofd.ShowDialog();
if (!CheckFileAndAdd(ofd.FileName))
ofd.Title = "Flash Executable";
ofd.Filter = "PE Executables (*.exe, *.ocx, *.dll)|*.dll;*.exe;*.ocx|ELF Executables (*.so, *.elf, *.dylib)|*.so;*.elf;*.dylib";
DialogResult res = ofd.ShowDialog();
if(res == DialogResult.OK)
{
MessageBox.Show("File selected does not contain the killswitch timestamp, cannot patch!", "Timestamp Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
if (!CheckFileAndAdd(ofd.FileName))
{
MessageBox.Show("File selected does not contain the killswitch timestamp, cannot patch!", "Timestamp Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
private void deleteFile_Click(object sender, EventArgs e)
{
flashExes.Items.RemoveAt(flashExes.SelectedIndex);
if(flashExes.SelectedIndex >= 0)
flashExes.Items.RemoveAt(flashExes.SelectedIndex);
}
}
}

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@ -16,7 +16,7 @@
Remove this element if your application requires this virtualization for backwards
compatibility.
-->
<requestedExecutionLevel level="highestAvailable" uiAccess="false" />
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
</requestedPrivileges>
</security>
</trustInfo>