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Convert CD-Lock to section based

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This commit is contained in:
Matt Nadareski
2021-08-29 21:49:14 -07:00
parent 027388f587
commit 834018b325
1 changed files with 39 additions and 15 deletions
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54
BurnOutSharp/ProtectionType/CDLock.cs
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@@ -1,5 +1,8 @@
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using BurnOutSharp.ExecutableType.Microsoft;
using BurnOutSharp.Matching;
namespace BurnOutSharp.ProtectionType
@@ -7,23 +10,44 @@ namespace BurnOutSharp.ProtectionType
public class CDLock : IContentCheck, IPathCheck
{
/// <inheritdoc/>
public List<ContentMatchSet> GetContentMatchSets()
{
return new List<ContentMatchSet>
{
// 2 + (char)0xF2 + (char)0x02 + (char)0x82 + (char)0xC3 + (char)0xBC + (char)0x0B + $ + (char)0x99 + (char)0xAD + 'C + (char)0xE4 + (char)0x9D + st + (char)0x99 + (char)0xFA + 2$ + (char)0x9D + )4 + (char)0xFF + t
new ContentMatchSet(new byte?[]
{
0x32, 0xF2, 0x02, 0x82, 0xC3, 0xBC, 0x0B, 0x24,
0x99, 0xAD, 0x27, 0x43, 0xE4, 0x9D, 0x73, 0x74,
0x99, 0xFA, 0x32, 0x24, 0x9D, 0x29, 0x34, 0xFF,
0x74
}, "CD-Lock"),
};
}
public List<ContentMatchSet> GetContentMatchSets() => null;
/// <inheritdoc/>
public string CheckContents(string file, byte[] fileContent, bool includeDebug = false) => null;
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;
// Get the .data section, if it exists
var dataSection = sections.FirstOrDefault(s => Encoding.ASCII.GetString(s.Name).StartsWith(".data"));
if (dataSection != null)
{
int sectionAddr = (int)dataSection.PointerToRawData;
int sectionEnd = sectionAddr + (int)dataSection.VirtualSize;
var matchers = new List<ContentMatchSet>
{
// 2 + (char)0xF2 + (char)0x02 + (char)0x82 + (char)0xC3 + (char)0xBC + (char)0x0B + $ + (char)0x99 + (char)0xAD + 'C + (char)0xE4 + (char)0x9D + st + (char)0x99 + (char)0xFA + 2$ + (char)0x9D + )4 + (char)0xFF + t
new ContentMatchSet(
new ContentMatch(new byte?[]
{
0x32, 0xF2, 0x02, 0x82, 0xC3, 0xBC, 0x0B, 0x24,
0x99, 0xAD, 0x27, 0x43, 0xE4, 0x9D, 0x73, 0x74,
0x99, 0xFA, 0x32, 0x24, 0x9D, 0x29, 0x34, 0xFF,
0x74
}, start: sectionAddr, end: sectionEnd),
"CD-Lock"),
};
string match = MatchUtil.GetFirstMatch(file, fileContent, matchers, includeDebug);
if (!string.IsNullOrWhiteSpace(match))
return match;
}
return null;
}
/// <inheritdoc/>
public ConcurrentQueue<string> CheckDirectoryPath(string path, IEnumerable<string> files)