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Check .data/DATA sections for ASPack as well #340

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Merged
mnadareski merged 1 commit into from
Dec 3, 2024
Merged

Check .data/DATA sections for ASPack as well #340

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43 changes: 43 additions & 0 deletions BinaryObjectScanner/Packer/ASPack.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
namespace BinaryObjectScanner.Packer
{
// TODO: Add extraction
// TODO: Research and add support for ASProtect. It seems to be an additional layer of protection for ASPack, making detecting it separately more difficult.
public class ASPack : IExtractableExecutable<PortableExecutable>
{
/// <inheritdoc/>
Expand Down Expand Up @@ -35,6 +36,16 @@ public class ASPack : IExtractableExecutable<PortableExecutable>
return match;
}

// Get the .data/DATA section, if it exists
var dataSectionRaw = pex.GetFirstSectionData(".data") ?? pex.GetFirstSectionData("DATA");
if (dataSectionRaw != null)
{
var matchers = GenerateMatchers();
var match = MatchUtil.GetFirstMatch(file, dataSectionRaw, matchers, includeDebug);
if (!string.IsNullOrEmpty(match))
return match;
}

return null;
}

Expand Down Expand Up @@ -552,6 +563,38 @@ private static List<ContentMatchSet> GenerateMatchers()
0x1C, 0x00
}, "ASPack 2.x (without Poly) -> Solodovnikov Alexey"),

// Commented out due to "ASPack 2.1" getting detected before this. More research is needed.
// Based on detection rules from https://github.com/x64dbg/yarasigs/blob/master/Old_Internal_PEiD.yara
/* new(new byte?[]
{
0x60, 0xE8, 0x03, 0x00, 0x00, 0x00, 0xE9, 0xEB,
0x04, 0x5D, 0x45, 0x55, 0xC3, 0xE8, 0x01, 0x00,
0x00, 0x00, 0xEB, 0x5D, 0xBB, 0xED, 0xFF, 0xFF,
0xFF, 0x03, 0xDD, 0x81, 0xEB, 0x00, null, null,
null, 0x80, 0x7D, 0x4D, 0x01, 0x75, 0x0C, 0x8B,
0x74, 0x24, 0x28, 0x83, 0xFE, 0x01, 0x89, 0x5D,
0x4E, 0x75, 0x31, 0x8D, 0x45, 0x53, 0x50, 0x53,
0xFF, 0xB5, null, 0x09, 0x00, 0x00, 0x8D, 0x45,
0x35, 0x50, 0xE9, 0x82, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, null,
0x00, 0x00, 0x00, 0x00, 0xB8, 0xF8, 0xC0, 0xA5,
0x23, 0x50, 0x50, 0x03, 0x45, 0x4E, 0x5B, 0x85,
0xC0, 0x74, 0x1C, 0xEB, 0x01, 0xE8, 0x81, 0xFB,
0xF8, 0xC0, 0xA5, 0x23, 0x74, 0x35, 0x33, 0xD2,
0x56, 0x6A, 0x00, 0x56, 0xFF, 0x75, 0x4E, 0xFF,
0xD0, 0x5E, 0x83, 0xFE, 0x00, 0x75, 0x24, 0x33,
0xD2, 0x8B, 0x45, 0x41, 0x85, 0xC0, 0x74, 0x07,
0x52, 0x52, 0xFF, 0x75, 0x35, 0xFF, 0xD0, 0x8B,
0x45, 0x35, 0x85, 0xC0, 0x74, 0x0D, 0x68, 0x00,
0x80, 0x00, 0x00, 0x6A, 0x00, 0xFF, 0x75, 0x35,
0xFF, 0x55, 0x3D, 0x5B, 0x0B, 0xDB, 0x61, 0x75,
0x06, 0x6A, 0x01, 0x58, 0xC2, 0x0C, 0x00, 0x33,
0xC0, 0xF7, 0xD8, 0x1B, 0xC0, 0x40, 0xC2, 0x0C,
0x00
}, "ASProtect SKE 2.x -> Solodovnikov Alexey"), */

#endregion

#region 2.xx (Long)
Expand Down
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