Decompression bomb (42110)

General Topics
1

I don´t know if I´m in the right place for this question. I´m new here and couldn´t find my way around the topics for my question.

I´ve just scanned an USB stick for viruses and Avast came up with a warning : E:/… OneNoteOfflineCache.onecache.

Error: The file is a decompression bomb (42110)

When I clicked on remove the hardware this message stood underneath the you can remove the hardware: Windows hostproces (Rundell32)

There is nothing on the usb-stick other than an Exel sheet, a collection of reciepies and the data of another usb-stick.

While scanning a lot of files that once perhaps have been on the usb-stick was shown being scanned, but they must have been deleted at some time and does not show as content on the stick anymore.

As I understand it a decompression bomb is a bunch of files compressed, but which files and why the warning? Other than Avast doesn´t unpack the compressed files to scan.

Can it have infected my pc with any kond of virus?

Can anyone help me with this question or redirect me to the right place for a question like this?

Best regards, mia 211

2

decompression bomb just mean a highly compressed file that avast will not unpack and scan

when whatever use that file unpack/open/access it avast realtime protection will scan it

Search forum for: decompression bomb

Recomended USB protection: MCShield http://www.mcshield.net/
Just install and forget :wink:

3

Ehm…Hi
I’ve got a problem
Avast found few infected files in C:\ System volume information \
I tested it again and deeper and now its giving me the bomb thing.
I searched around so i kind of know what is it but how can i test it without making me computer explode or something.
A can’t just delete it since its System file
And i don’t trust is since there were infected files before.
PLEASE SOMEBODY HELP Me!
…thank you

4

Read reply #1 - there is nothing you need to do if these are just reported as a Decompression bomb. Not necessarily infected.

If it were unpacked in normal circumstances then the File System Shield would scan the unpacked content.

Not, not everything in the System volume information location (restore points), are system files.