decompression bomb

Viruses and worms
1

ok well it ses thats wat dont know wat but it wont let me delet it on the scan list and it ses its from c:\Systom volume information.…\2.0_patchexe. no clue wat to do but i do download a bunch of patchs for my games like call of duty 4 and other games so any help would be nice thanks

2

Short answer: do nothing.

Longer answer:
Decompression Bomb, a file that is highly compressed, which could be very large when decompressed. This used to be a tactic long ago to swamp the system, see http://forum.avast.com/index.php?topic=8943.msg73950#msg73950

The patches are likely to be very large I would think, so it wouldn’t be unusual for this to crop up. My only question is how it got into the system volume information folder, _restore points and this would appear to be one are created by the system restore function. This normally only happens when a system file or file in the system folders or program file is deleted and system restore thinks it would be a good idea to save a copy just in case.

3

no clue not very good at computer so as long as i dont unzip or click it or wat not its fine? if so thanks for the help any thing else i mite need to know about thim thanks agian

4

Files that can’t be scanned are just that, not an indication they are suspicious/infected, just unable to be scanned.

So the short answer is the one to follow.

Unless you have no requirement for that patch (having I assume already installed it) you could remove it or do a clean up of old restore points on your system, this could free up a lot of HDD space…

Create Clean Restore Point - Clear old Restore Points.

Now you are clear of infection create a clean System Restore point:

  1. Click Start, All Programs, Accessories, System tools, System Restore.
  2. In the pop-up that appears fill in the radio button to Create a Restore Point
  3. Click NEXT
  4. Enter a useful name that you will remember if you need to find this again (Clean Restore Point)
  5. Click CREATE

You now have a clean restore point, you should clear the old ones:

  1. Click Start, All Programs, Accessories, System tools, Disk Clean Up
  2. Click OK on the C: drive
  3. Click the More Options tab
  4. In the System Restore section click the Clean Up button
5

I got the same message when AVast tried to scan my Adobe Master Collection DVD.

I freaked out, but after reading this post and a few others, you may be right and there may be no problem just that Master Collection decompresses from 3.2G to 22G or something like that.

6

Yes the name itself conjurers up all sorts of evil and I really do wish they would do something about it as the name strikes fear into users more so than any potential problem warrants.