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Suspicious.Cloud.9 virus/trojan from update.iobit.com/infofiles/liveupdate/download/BigUpgrade_IUASC.exe?


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Suddenly today Norton Internet Security notified me that it was dealing with "Suspicious.Cloud.9", which apparently is a virus or trojan. It told me to restart, which I did, and I now am repeatedly told that the threat was succesfully dealt with. I don't know why I need to be told again and again, but great. What I can't figure out is that according to Norton Internet Security, this "Suspicious.Cloud.9" originated from IOBIT. Here is what it tells me:


Filename: bigupgrade_iuasc.exe

Threat name: Suspicious.Cloud.9Full Path: c:\program files (x86)\iobit\iobit uninstaller\bigupgrade_iuasc.exe

Threat type: Heuristic Virus. Detection of a threat based on malware heuristics.

bigupgrade_iuasc.exe Threat name: Suspicious.Cloud.9


Very Few Users

Fewer than 5 users in the Norton Community have used this file.

Very New

This file was released less than 1 week ago.


This file risk is high.


Downloaded File bigupgrade_iuasc.exe Threat name: Suspicious.Cloud.9

from iobit.com

Source: External Media

File Actions

File: c:\program files (x86)\iobit\iobit uninstaller\ bigupgrade_iuasc.exe Blocked

File Thumbprint - SHA:

Not available

File Thumbprint - MD5:

Not available


Does anyone have a clue what this means? Is this a false positive or have I actually been infected by IOBIT? I am regularly nagged to upgrade to ASC 9. Could that have something to do with it? I'd sure appreciate some advice. Thanks

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Hi carlwhart,


Recently Norton has falsely reported IObit products. We have contacted Norton for the false positive issue. They have replied that they have removed the false positive.


Please ensure that you are using the latest definition files available on Norton website: http://securityresponse.symantec.com/avcenter/defs.download.html


If the issue still continues, please temporarily turn off the antivirus feature of Norton and add the file to the whitelist of Norton manually.


Guidance for adding to whitelist of Norton: https://support.norton.com/sp/en/us/home/current/solutions/kb20100222230832EN_EndUserProfile_en_us


We will again contact with them to figure this out. Your understanding is highly appreciated.:-)

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Thanks for answering. My Norton definition files are definitely up to date. Since the IOBIT file causing the problem seems to relate to the uninstalled ASC 9 update and not my current version 8.4, which is working fine, I found the IOBIT file and simply deleted it. (Norton had already quarentined it.) If it somehow returns and the problem recurs, I'll do as you suggest regarding the Norton whitelist.

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