I downloaded 'FileZilla_Server-0_9_43.exe' from SourceForge and it is fine - nothing picked up by AVG. Searched that exact term on the AVG website - returned nothing useful. I downloaded 'FileZilla_3.7.3_win32-setup.exe' from SourceForge and AVG is repeatedly nagging me that it's infected with ''. I just now checked via its interface panel and it says my AVG is up-to-date. Well I'll just start by saying, I'm using AVG AntiVirus Free Version 202.

Any attempt to update the application fails, which is most likely a protection to prevent overwriting of malware binaries.Įdit August, 06 2014 : As rmflow say, SourceForge is not trusted source anymore, so I edit this to remove the reference

The only differences that can be seen at first glance are smaller filesize of filezilla.exe (~6,8 MB), 2 dll libraries ibgcc_s_dw2-1.dll and libstdc++-6.dll (not included in the official version) and information in “About FileZilla” window indicates the use of older SQLite/GnuTLS versions. The installed malware FTP client looks like the official version and it is fully functional! You can’t find any suspicious behavior, entries in the system registry, communication or changes in application GUI. All other elements like texts, buttons, icons and images are the same. The only slight difference is version of NullSoft installer where malware uses 2.46.3-Unicode and the official installer uses v2.45-Unicode. Malware installer GUI is almost identical to the official version.

As you can see, the installer is mostly hosted on hacked websites with fake content The first suspicious signs are bogus download URLs. We have noticed an increased presence of these malware versions of famous open source FTP clients. Malformed FileZilla FTP client with login stealerīeware of malformed FileZilla FTP client versions 3.7.3 and 3.5.3. If you get filezilla from other site, maybe, could be infected.

How safeyl download filezilla