This evening I performed Avast scan solely for my C:\ drive after not doing that for while (I usually do stock Full scan), and after scan it told me that some files could not be scanned, and it gave me error 42110 that said that the file is a “decompression bomb”, or in finnish just having a heck lot of files. It seems to be BSP file from the game Team Fortress 2 (attached screenshot below), which had a major update some time ago when I hand’t done C:\ scan for a while, and the file seems to be some of the new map’s textures, since game had major update few weeks ago and this was first time I performed C:\ scan after that. However, this haven’t shown up after performing Full scan. :-\
How do I handle files that avast! can’t scan? https://blog.avast.com/2014/02/28/how-do-i-handle-files-that-avast-cant-scan/
"decompression bomb"Just a highly compressed file, does not containe malware. A trick used in the old days to crash scan/unpack engine Said to be difficult to detect correct, infact i have never seen any other then avast detect this. And the only real one i have seen are the one you find on the net for download