Crashing when downloading bigger size files

[thryb]

Hey Ne0nd0g,

Just for your information, the agent seems so have some kind of memory issue when downloading bigger files.

During exfil testing, we chunked multiple 1G files, which resulted in the implant crashing every time we started to download one. I tried Windows/Linux/Arm and all result in the same behavior.

I.e. after 1 minute of starting the download/just before crash:

Cheers,

[Ne0nd0g]

Thanks for reporting this issue. Fortunately I think I know what the issue is. I don't do any file chucking and the entire file is read into memory when the download command is issued. What was the biggest file size the tried to download that caused the crash?

[thryb]

I haven't tried any other size, just switched agent as we were tight in time. All good I just thought you should know in case you didn't :)