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Improve CD-Key matching

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This commit is contained in:
Matt Nadareski
2021-08-30 14:24:16 -07:00
parent 460eb78ecd
commit 47b189bf87
1 changed files with 36 additions and 21 deletions
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57
BurnOutSharp/ProtectionType/CDKey.cs
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@@ -1,5 +1,8 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using BurnOutSharp.ExecutableType.Microsoft;
using BurnOutSharp.Matching;
using BurnOutSharp.Tools;
@@ -8,31 +11,11 @@ namespace BurnOutSharp.ProtectionType
public class CDKey : IContentCheck
{
/// <inheritdoc/>
public List<ContentMatchSet> GetContentMatchSets()
{
return new List<ContentMatchSet>
{
// I + (char)0x00 + n + (char)0x00 + t + (char)0x00 + e + (char)0x00 + r + (char)0x00 + n + (char)0x00 + a + (char)0x00 + l + (char)0x00 + N + (char)0x00 + a + (char)0x00 + m + (char)0x00 + e + (char)0x00 + + (char)0x00 + + (char)0x00 + C + (char)0x00 + D + (char)0x00 + K + (char)0x00 + e + (char)0x00 + y + (char)0x00
new ContentMatchSet(new byte?[]
{
0x49, 0x00, 0x6E, 0x00, 0x74, 0x00, 0x65, 0x00,
0x72, 0x00, 0x6E, 0x00, 0x61, 0x00, 0x6C, 0x00,
0x4E, 0x00, 0x61, 0x00, 0x6D, 0x00, 0x65, 0x00,
0x00, 0x00, 0x43, 0x00, 0x44, 0x00, 0x4B, 0x00,
0x65, 0x00, 0x79, 0x00
}, Utilities.GetFileVersion, "CD-Key / Serial"),
};
}
public List<ContentMatchSet> GetContentMatchSets() => null;
/// <inheritdoc/>
public string CheckContents(string file, byte[] fileContent, bool includeDebug = false)
{
// Get the sections from the executable, if possible
// PortableExecutable pex = PortableExecutable.Deserialize(fileContent, 0);
// var sections = pex?.SectionTable;
// if (sections == null)
// return null;
// TODO: Implement resource finding instead of using the built in methods
// Assembly information lives in the .rsrc section
// I need to find out how to navigate the resources in general
@@ -46,6 +29,38 @@ namespace BurnOutSharp.ProtectionType
if (!string.IsNullOrWhiteSpace(name) && name.Equals("CDKey", StringComparison.OrdinalIgnoreCase))
return "CD-Key / Serial";
// Get the sections from the executable, if possible
PortableExecutable pex = PortableExecutable.Deserialize(fileContent, 0);
var sections = pex?.SectionTable;
if (sections == null)
return null;
// Get the .rsrc section, if it exists
var rsrcSection = sections.FirstOrDefault(s => Encoding.ASCII.GetString(s.Name).StartsWith(".rsrc"));
if (rsrcSection != null)
{
int sectionAddr = (int)rsrcSection.PointerToRawData;
int sectionEnd = sectionAddr + (int)rsrcSection.VirtualSize;
var matchers = new List<ContentMatchSet>
{
// I + (char)0x00 + n + (char)0x00 + t + (char)0x00 + e + (char)0x00 + r + (char)0x00 + n + (char)0x00 + a + (char)0x00 + l + (char)0x00 + N + (char)0x00 + a + (char)0x00 + m + (char)0x00 + e + (char)0x00 + + (char)0x00 + + (char)0x00 + C + (char)0x00 + D + (char)0x00 + K + (char)0x00 + e + (char)0x00 + y + (char)0x00
new ContentMatchSet(
new ContentMatch(new byte?[]
{
0x49, 0x00, 0x6E, 0x00, 0x74, 0x00, 0x65, 0x00,
0x72, 0x00, 0x6E, 0x00, 0x61, 0x00, 0x6C, 0x00,
0x4E, 0x00, 0x61, 0x00, 0x6D, 0x00, 0x65, 0x00,
0x00, 0x00, 0x43, 0x00, 0x44, 0x00, 0x4B, 0x00,
0x65, 0x00, 0x79, 0x00,
}, start: sectionAddr, end: sectionEnd),
"CD-Key / Serial"),
};
string match = MatchUtil.GetFirstMatch(file, fileContent, matchers, includeDebug);
if (!string.IsNullOrWhiteSpace(match))
return match;
}
return null;
}
}