[INVALID]WinSCP 6.5.5 portable confusion - are there two versions? Does one of them contain malware?

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nobugme
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[INVALID]WinSCP 6.5.5 portable confusion - are there two versions? Does one of them contain malware?

Were there two versions of WinSCP 6.5.5 portable released?

Somehow I ended up with the version which does not match what you distribute now.

Have I been hacked? Have you been hacked?

Here's what I have, WinSCP.exe, version 6.5.5.16453, size 24,060,560 bytes.

md5sum WinSCP.exe 
ef0403fbdbe0da6a0eec8a7d2fb1496e  WinSCP.exe

sha256sum WinSCP.exe 
f843a04c8fefd2f33c3abbf2157b9ce91cfd909781baa4f7e19cdc25efc1fecb  WinSCP.exe

The current download, the same version and size, but

md5sum WinSCP.exe 
02d2c09cc9f7b17e1aa3b6f2bbc6695a  WinSCP.exe

sha256sum WinSCP.exe 
bd11fd16014ce10d456fda42dabc79369d15074137edbda70dbeb201212735d7  WinSCP.exe

Its VirusTotal check.

I've attached it here. Just to make things clear: I downloaded it from the official SourceForge pages.

Edit: spent an hour with ChatGPT discussing this weird build. Looks like it mostly matches the official except for the signature and certain relocations. I'm still freaked out.

Hybrid analyses:

"Bad" version:

https://hybrid-analysis.com/sample/f843a04c8fefd2f33c3abbf2157b9ce91cfd909781baa4f7e19cdc25efc1fecb/69f4797473a7d76a0b0084b1

"Good" version:

https://hybrid-analysis.com/sample/bd11fd16014ce10d456fda42dabc79369d15074137edbda70dbeb201212735d7/696a41b1b001adeb89022aba

Final edit: disregard this topic. The new binary is the result of uncompressing the UPX-compressed file. It looks like it no longer produces bit-perfect decompression results.

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