Malwarebytes: Warning over free online file converters that actually install malware

[TheBlackAdder]

The FBI Denver Field Office has warned of an increasing number of scammy websites offering free online file converter services.

Instead of converting files, the tools actually load malware onto victims’ computers. The FBI warned specifically about that malware leading to ransomware attacks, but we’ve also seen similar sites that install browser hijackers, adware, and potentially unwanted programs (PUPs).

The cybercriminals offer any kind of popular file conversion to attract victims, with the most common ones converting .doc to .pdf files and vice versa. There are also sites that offer to combine multiple images into one .pdf file.

https://www.malwarebytes.com/blog/news/2025/03/warning-over-free-online-file-converters-that-actually-install-malware

Nothing's free.

[Tetrachloride]

1. No OS listed

[canetoad]

2. I've seen many of those

Convert music, ebooks, images etc. Always assumed they were saving a copy to contribute to AI.