Author Topic: error, compressionbomb?  (Read 3106 times)

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skinandb0nes

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error, compressionbomb?
« on: March 23, 2014, 09:44:59 PM »
Today I made a backup of my iPhone in iTunes so iTunes made a copy of my downloaded apps (all legit apps like facebook, instagram, twitter etc from their original developers) and it safed the copy somewhere on my computer. I ran a full scan with avast on my computer and one file couldn't get scanned, because it's a "decompressionbomb" according to avast. When I clicked the results, it showed up that it was about a part of the facebook app for my iPhone. Since I downloaded it from the original appstore from apple and it's the original facebook app I'm pretty sure that it can't be malware (right?) but what is a decompressionbomb? Should I worry about that?

* Sorry for the typo, I meant decompressionbomb.

Offline Asyn

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Re: error, compressionbomb?
« Reply #1 on: March 23, 2014, 09:51:23 PM »
...but what is a decompressionbomb?

It's a highly packed archive.
W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

skinandb0nes

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Re: error, compressionbomb?
« Reply #2 on: March 23, 2014, 09:52:26 PM »
...but what is a decompressionbomb?

It's a highly packed archive.

Is it anything malicious?

Offline Asyn

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Re: error, compressionbomb?
« Reply #3 on: March 23, 2014, 09:55:02 PM »
W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

skinandb0nes

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Re: error, compressionbomb?
« Reply #4 on: March 23, 2014, 10:00:51 PM »

Offline Asyn

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Re: error, compressionbomb?
« Reply #5 on: March 23, 2014, 10:01:19 PM »
You're welcome.
W8.1 [x64] - Avast Free AV 23.3.8047.BC [UI.757] - Firefox ESR 102.9 [NS/uBO/PB] - Thunderbird 102.9.1
Avast-Tools: Secure Browser 109.0 - Cleanup 23.1 - SecureLine 5.18 - DriverUpdater 23.1 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline Pondus

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Re: error, compressionbomb?
« Reply #6 on: March 23, 2014, 10:17:51 PM »
...but what is a decompressionbomb?

It's a highly packed archive.
Also a old trick to crash AV scanners.... lots of info if you know how to google