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Patch
--- trunk/Win32/Sojaner.MemoryScanner/PEReader.cs 2012/06/05 17:57:37 318
+++ trunk/Win32/Sojaner.MemoryScanner/PEReader.cs 2012/06/05 18:39:06 319
@@ -15,6 +15,26 @@
{
// Code (C) Sergey utilized from: http://www.sergeyakopov.com/2010/11/03/reading-pe-format-using-data-marshalling-in-net/
#region Structs
+
+ [Flags]
+ public enum MachineTypeFlags
+ {
+ x86 = 0x14C,
+ Alpha = 0x184,
+ ARM = 0x1C0,
+ MIPS16R3000 = 0x162,
+ MIPS16R4000 = 0x166,
+ MIPS16R10000 = 0x168,
+ PowerPCLE = 0x1F0,
+ PowerPCBE = 0x1F2,
+ Itanium = 0x200,
+ MIPS16 = 0x266,
+ Alpha64 = 0x284,
+ MIPSFPU = 0x366,
+ MIPSFPU16 = 0x466,
+ x64 = 0x8664,
+ }
+
[TypeConverter(typeof(ExpandableObjectConverter))]
[StructLayout(LayoutKind.Sequential)]
public struct IMAGE_DOS_HEADER
@@ -61,27 +81,79 @@
public ushort[] e_res2 { get { return _e_res2; } }
public string e_lfanew { get { return string.Format("0x{0:x8}", _e_lfanew); } }
+ public override string ToString()
+ {
+ return Encoding.UTF8.GetString(BitConverter.GetBytes(_e_magic));
+ }
}
[TypeConverter(typeof(ExpandableObjectConverter))]
[StructLayout(LayoutKind.Sequential)]
public struct IMAGE_NT_HEADERS
{
- public UInt32 Signature;
- public IMAGE_FILE_HEADER FileHeader;
- public IMAGE_OPTIONAL_HEADER32 OptionalHeader32;
- public IMAGE_OPTIONAL_HEADER64 OptionalHeader64;
+ public UInt32 _Signature;
+ public IMAGE_FILE_HEADER _FileHeader;
+ public IMAGE_OPTIONAL_HEADER32 _OptionalHeader32;
+ public IMAGE_OPTIONAL_HEADER64 _OptionalHeader64;
+
+ public string Signature { get { return string.Format("0x{0:x8}", _Signature); } }
+ public IMAGE_FILE_HEADER FileHeader { get { return _FileHeader; } }
+ public IMAGE_OPTIONAL_HEADER32 OptionalHeader32 { get { return _OptionalHeader32;} }
+ public IMAGE_OPTIONAL_HEADER64 OptionalHeader64 { get { return _OptionalHeader64;} }
+
+ public override string ToString()
+ {
+ return Encoding.UTF8.GetString(BitConverter.GetBytes(_Signature));
+ }
}
[TypeConverter(typeof(ExpandableObjectConverter))]
[StructLayout(LayoutKind.Sequential)]
public struct IMAGE_FILE_HEADER
{
- public UInt16 Machine;
- public UInt16 NumberOfSections;
- public UInt32 TimeDateStamp;
- public UInt32 PointerToSymbolTable;
- public UInt32 NumberOfSymbols;
- public UInt16 SizeOfOptionalHeader;
- public UInt16 Characteristics;
+ public UInt16 _MachineType;
+ public UInt16 _NumberOfSections;
+ public UInt32 _TimeDateStamp;
+ public UInt32 _PointerToSymbolTable;
+ public UInt32 _NumberOfSymbols;
+ public UInt16 _SizeOfOptionalHeader;
+ public UInt16 _Characteristics;
+
+
+ public string MachineType { get { return ((MachineTypeFlags)_MachineType).ToString(); } }
+ public string NumberOfSections { get { return string.Format("0x{0:x4}", _NumberOfSections); } }
+ public string TimeDateStamp { get { return string.Format("{0} (0x{1:x8})", GetDateTimeFromDosDateTime(_TimeDateStamp).ToString(), _TimeDateStamp); } }
+ public string PointerToSymbolTable { get { return string.Format("0x{0:x8}", _PointerToSymbolTable); } }
+ public string NumberOfSymbols { get { return string.Format("0x{0:x8}", _NumberOfSymbols); } }
+ public string SizeOfOptionalHeader { get { return string.Format("0x{0:x4}", _SizeOfOptionalHeader); } }
+ public string Characteristics { get { return string.Format("0x{0:x4}", _Characteristics); } }
+ public override string ToString()
+ {
+ return MachineType;
+ }
+
+ private DateTime GetDateTimeFromDosDateTime(UInt32 i32TimeDate)
+ {
+ UInt16 i16Time = (UInt16)(i32TimeDate & 0xFFFF);
+ UInt16 i16Date = (UInt16)((i32TimeDate & 0xFFFF0000) >> 16);
+ return GetDateTimeFromDosDateTime(i16Time, i16Date);
+ }
+ private DateTime GetDateTimeFromDosDateTime(UInt16 i16Time, UInt16 i16Date)
+ {
+ int iYear = 0;
+ int iMonth = 1;
+ int iDay = 1;
+ int iHour = 0;
+ int iMinute = 0;
+ int iSecond = 0;
+ iDay = (i16Date & 0x1F);
+ iMonth = ((i16Date & 0x01E0) >> 5);
+ iYear = 1980 + ((i16Date & 0xFE00) >> 9);
+ iSecond = (i16Time & 0x1F) * 2;
+ iMinute = ((i16Time & 0x07E0) >> 5);
+ iHour = ((i16Time & 0x0F800) >> 11);
+ return new DateTime(iYear, iMonth, iDay, iHour, iMinute, iSecond);
+
+ }
+
}
[TypeConverter(typeof(ExpandableObjectConverter))]
[StructLayout(LayoutKind.Sequential)]
@@ -168,25 +240,44 @@
public struct IMAGE_SECTION_HEADER
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 8)]
- public string Name;
- public Misc Misc;
- public UInt32 VirtualAddress;
- public UInt32 SizeOfRawData;
- public UInt32 PointerToRawData;
- public UInt32 PointerToRelocations;
- public UInt32 PointerToLinenumbers;
- public UInt16 NumberOfRelocations;
- public UInt16 NumberOfLinenumbers;
- public UInt32 Characteristics;
+ public string _Name;
+ public Misc _Misc;
+ public UInt32 _VirtualAddress;
+ public UInt32 _SizeOfRawData;
+ public UInt32 _PointerToRawData;
+ public UInt32 _PointerToRelocations;
+ public UInt32 _PointerToLinenumbers;
+ public UInt16 _NumberOfRelocations;
+ public UInt16 _NumberOfLinenumbers;
+ public UInt32 _Characteristics;
+
+ public string Name { get { return _Name; } }
+ public Misc Misc { get { return _Misc; } }
+ public string VirtualAddress { get { return string.Format("0x{0:x8}", _VirtualAddress); } }
+ public string SizeOfRawData { get { return string.Format("0x{0:x8}", _SizeOfRawData); } }
+ public string PointerToRawData { get { return string.Format("0x{0:x8}", _PointerToRawData); } }
+ public string PointerToRelocations { get { return string.Format("0x{0:x8}", _PointerToRelocations); } }
+ public string PointerToLinenumbers { get { return string.Format("0x{0:x8}", _PointerToLinenumbers); } }
+ public string NumberOfRelocations { get { return string.Format("0x{0:x4}", _NumberOfRelocations); } }
+ public string NumberOfLinenumbers { get { return string.Format("0x{0:x4}", _NumberOfLinenumbers); } }
+ public string Characteristics { get { return string.Format("0x{0:x8}", _Characteristics); } }
+ public override string ToString()
+ {
+ return Name;
+ }
}
[TypeConverter(typeof(ExpandableObjectConverter))]
[StructLayout(LayoutKind.Explicit)]
public struct Misc
{
[FieldOffset(0)]
- public UInt32 PhysicalAddress;
+ public UInt32 _PhysicalAddress;
[FieldOffset(0)]
- public UInt32 VirtualSize;
+ public UInt32 _VirtualSize;
+
+ public string PhysicalAddress { get { return string.Format("0x{0:x8}", _PhysicalAddress); } }
+ public string VirtualSize { get { return string.Format("0x{0:x8}", _VirtualSize); } }
+
}
#endregion
@@ -242,15 +333,15 @@
{
get
{
- PEData _data = new PEData(_dosHeader, _ntHeaders, _sectionHeaders);
+ PEData _data = new PEData(_dosHeader, _ntHeaders, _sectionHeaders.ToArray());
return _data;
}
}
#region t
public class PEData
{
- public PEData():this(new IMAGE_DOS_HEADER(),new IMAGE_NT_HEADERS(),new List<IMAGE_SECTION_HEADER>()) { }
- public PEData(IMAGE_DOS_HEADER DosHeader, IMAGE_NT_HEADERS NTHeader, IList<IMAGE_SECTION_HEADER> SectionHeaders)
+ public PEData() : this(new IMAGE_DOS_HEADER(), new IMAGE_NT_HEADERS(), new IMAGE_SECTION_HEADER[] { }) { }
+ public PEData(IMAGE_DOS_HEADER DosHeader, IMAGE_NT_HEADERS NTHeader, IMAGE_SECTION_HEADER[] SectionHeaders)
{
this.DosHeader = DosHeader;
this.NTHeader = NTHeader;
@@ -258,7 +349,7 @@
}
public IMAGE_DOS_HEADER DosHeader { get; private set; }
public IMAGE_NT_HEADERS NTHeader { get; private set; }
- public IList<IMAGE_SECTION_HEADER> SectionHeaders { get; private set; }
+ public IMAGE_SECTION_HEADER[] SectionHeaders { get; private set; }
}
#endregion
@@ -288,15 +379,15 @@
reader.BaseStream.Seek(_dosHeader._e_lfanew, SeekOrigin.Begin);
// Read NT Headers
- _ntHeaders.Signature = MarshalBytesTo<UInt32>(reader);
+ _ntHeaders._Signature = MarshalBytesTo<UInt32>(reader);
// Make sure we have 'PE' in the pe signature
- if (_ntHeaders.Signature != 0x4550)
+ if (_ntHeaders._Signature != 0x4550)
{
throw new InvalidOperationException("Invalid portable executable signature in NT header.");
}
- _ntHeaders.FileHeader = MarshalBytesTo<IMAGE_FILE_HEADER>(reader);
+ _ntHeaders._FileHeader = MarshalBytesTo<IMAGE_FILE_HEADER>(reader);
// Read optional headers
if (Is32bitAssembly())
{
@@ -323,10 +414,10 @@
log.verbose.debug.writeline("\t\tPointer To Raw Data: 0x{0:x8}", header.PointerToRawData);
// Skip to beginning of a section
- reader.BaseStream.Seek(header.PointerToRawData, SeekOrigin.Begin);
+ reader.BaseStream.Seek(header._PointerToRawData, SeekOrigin.Begin);
// Read section data... and do something with it
- byte[] sectiondata = reader.ReadBytes((int)header.SizeOfRawData);
+ byte[] sectiondata = reader.ReadBytes((int)header._SizeOfRawData);
}
reader.Close();
}
@@ -350,7 +441,7 @@
public UInt32 GetPESignature()
{
- return _ntHeaders.Signature;
+ return _ntHeaders._Signature;
}
public IMAGE_FILE_HEADER GetFileHeader()
@@ -375,12 +466,12 @@
public bool Is32bitAssembly()
{
- return ((_ntHeaders.FileHeader.Characteristics & 0x0100) == 0x0100);
+ return ((_ntHeaders.FileHeader._Characteristics & 0x0100) == 0x0100);
}
private void Load64bitOptionalHeaders(BinaryReader reader)
{
- _ntHeaders.OptionalHeader64 = MarshalBytesTo<IMAGE_OPTIONAL_HEADER64>(reader);
+ _ntHeaders._OptionalHeader64 = MarshalBytesTo<IMAGE_OPTIONAL_HEADER64>(reader);
// Should have 10 data directories
if (_ntHeaders.OptionalHeader64.NumberOfRvaAndSizes != 0x10)
@@ -400,7 +491,7 @@
private void Load32bitOptionalHeaders(BinaryReader reader)
{
- _ntHeaders.OptionalHeader32 = MarshalBytesTo<IMAGE_OPTIONAL_HEADER32>(reader);
+ _ntHeaders._OptionalHeader32 = MarshalBytesTo<IMAGE_OPTIONAL_HEADER32>(reader);
// Should have 10 data directories
if (_ntHeaders.OptionalHeader32.NumberOfRvaAndSizes != 0x10)
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