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Convert Advanced Installer to section based

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This commit is contained in:
Matt Nadareski
2021-08-26 21:57:56 -07:00
parent 5a85ff2ad3
commit c4ca27608b
1 changed files with 40 additions and 17 deletions
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57
BurnOutSharp/PackerType/AdvancedInstaller.cs
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@@ -1,5 +1,9 @@
using System.Collections.Generic;
using System.Linq;
using System.Text;
using BurnOutSharp.ExecutableType.Microsoft;
using BurnOutSharp.Matching;
using BurnOutSharp.Tools;
namespace BurnOutSharp.PackerType
{
@@ -7,23 +11,42 @@ namespace BurnOutSharp.PackerType
public class AdvancedInstaller : IContentCheck
{
/// <inheritdoc/>
public List<ContentMatchSet> GetContentMatchSets()
{
return new List<ContentMatchSet>
{
// Software\Caphyon\Advanced Installer
new ContentMatchSet(new byte?[]
{
0x53, 0x6F, 0x66, 0x74, 0x77, 0x61, 0x72, 0x65,
0x5C, 0x43, 0x61, 0x70, 0x68, 0x79, 0x6F, 0x6E,
0x5C, 0x41, 0x64, 0x76, 0x61, 0x6E, 0x63, 0x65,
0x64, 0x20, 0x49, 0x6E, 0x73, 0x74, 0x61, 0x6C,
0x6C, 0x65, 0x72
}, "Caphyon Advanced Installer"),
};
}
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
PEExecutable pex = PEExecutable.Deserialize(fileContent, 0);
var sections = pex?.SectionHeaders;
if (sections == null)
return null;
// Get the .rdata section, if it exists
var rdataSection = sections.FirstOrDefault(s => Encoding.ASCII.GetString(s.Name).StartsWith(".rdata"));
if (rdataSection != null)
{
int sectionAddr = (int)EVORE.ConvertVirtualAddress(rdataSection.VirtualAddress, sections);
int sectionEnd = sectionAddr + (int)rdataSection.VirtualSize;
var matchers = new List<ContentMatchSet>
{
// Software\Caphyon\Advanced Installer
new ContentMatchSet(new ContentMatch(
new byte?[]
{
0x53, 0x6F, 0x66, 0x74, 0x77, 0x61, 0x72, 0x65,
0x5C, 0x43, 0x61, 0x70, 0x68, 0x79, 0x6F, 0x6E,
0x5C, 0x41, 0x64, 0x76, 0x61, 0x6E, 0x63, 0x65,
0x64, 0x20, 0x49, 0x6E, 0x73, 0x74, 0x61, 0x6C,
0x6C, 0x65, 0x72
}, start: sectionAddr, end: sectionEnd),
"Caphyon Advanced Installer"),
};
return MatchUtil.GetFirstMatch(file, fileContent, matchers, includeDebug);
}
return null;
}
}
}