Skip to content

Accurately get OverlayAddress for UPX-compressed executables #67

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
HeroponRikiBestest wants to merge 2 commits into
base: main
Choose a base branch
from
Open

Accurately get OverlayAddress for UPX-compressed executables #67

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
2d01436
Add alternate path for OverlayAddress for upx-compressed executables,…
HeroponRikiBestest Jan 29, 2026
d163fbd
Use SectionNames
HeroponRikiBestest Jan 29, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 6 additions & 0 deletions SabreTools.Serialization/Wrappers/PortableExecutable.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -344,6 +344,12 @@ public long OverlayAddress

// Search through all sections and find the furthest a section goes
long endOfSectionData = OptionalHeader.SizeOfHeaders;

// For UPX-packed executables, OptionalHeader.SizeOfHeaders is consistently 4096 and wrong,
// wheras PointerToRawData is consistently 1024 and correct.
if (SectionNames[0] == "UPX0")
endOfSectionData = SectionTable[0].PointerToRawData;

Array.ForEach(SectionTable, s => endOfSectionData += s.SizeOfRawData);

// If we didn't find the end of section data
Expand Down