It's nothing to worry about, you are just informed that avast! will not try to unpack the archive (you may not even know that it's an archive, but it seems like it is) because it may take VERY long to process.I'd suggest to ignore these files.īut you can change values into avast4.ini file to configure how avast should work with these files. Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) (Moderators: hectic-mmv, LudekS, chytil2) ». has a high compression ratio, for example). Decompression bomb is just something that unpacks to an unusually big amount of data even though it's rather small (i.e.

Generally, there is not need to be worried about. You can shut it off on install or within the settings. The company also points out the browser history collection is optional. Your anti-virus will not attempt to scan/unpack the file but will alert you to the high compression ratio which it considers suspicious. On the flip side, Avast is offering a free antivirus product. Such files could potentially crash a system when unpacked and in the past they were known for targeting anti-virus programs during scanning. In other words, it is a file that looks small as a result of multiple compression methods but is actually very large when decompressed. Norton, Avira, Avast and AVG Antivirus for Windows may be susceptible to a Privilege Escalation vulnerability, which is a type of issue whereby an attacker may. A decompression bomb is a highly compressed archive of a large amount of uncompressed data. Protects against software that secretly gathers information about a computer user or organisation.

What is avast antivirus decompression