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Partially convert CDS to section based; add note

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This commit is contained in:
Matt Nadareski
2021-08-29 21:07:26 -07:00
parent 76b16ca6d4
commit 56ae245305
1 changed files with 39 additions and 7 deletions
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46
BurnOutSharp/ProtectionType/CactusDataShield.cs
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@@ -4,6 +4,7 @@ using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using BurnOutSharp.ExecutableType.Microsoft;
using BurnOutSharp.Matching;
namespace BurnOutSharp.ProtectionType
@@ -13,21 +14,52 @@ namespace BurnOutSharp.ProtectionType
/// <inheritdoc/>
public List<ContentMatchSet> GetContentMatchSets()
{
// TODO: Both of these are found in Mac binaries
return new List<ContentMatchSet>
{
// DATA.CDS
new ContentMatchSet(new byte?[] { 0x44, 0x41, 0x54, 0x41, 0x2E, 0x43, 0x44, 0x53 }, "Cactus Data Shield 200"),
// \*.CDS
new ContentMatchSet(new byte?[] { 0x5C, 0x2A, 0x2E, 0x43, 0x44, 0x53 }, "Cactus Data Shield 200"),
// CDSPlayer
new ContentMatchSet(new byte?[] { 0x43, 0x44, 0x53, 0x50, 0x6C, 0x61, 0x79, 0x65, 0x72 }, "Cactus Data Shield 200"),
// yucca.cds
new ContentMatchSet(new byte?[] { 0x79, 0x75, 0x63, 0x63, 0x61, 0x2E, 0x63, 0x64, 0x73 }, "Cactus Data Shield 200"),
};
}
/// <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>
{
// \*.CDS
new ContentMatchSet(
new ContentMatch(new byte?[] { 0x5C, 0x2A, 0x2E, 0x43, 0x44, 0x53 }, start: sectionAddr, end: sectionEnd),
"Cactus Data Shield 200"),
// DATA.CDS
new ContentMatchSet(
new ContentMatch(new byte?[] { 0x44, 0x41, 0x54, 0x41, 0x2E, 0x43, 0x44, 0x53 }, start: sectionAddr, end: sectionEnd),
"Cactus Data Shield 200"),
};
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)