Author Topic: False positive - costing me money and a headache!  (Read 3695 times)

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ChristopherLL

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False positive - costing me money and a headache!
« on: June 05, 2009, 06:04:41 PM »
Hi,

My name is Christopher from Fired Up Software. Your latest Avast virus signature update is throwing a false positive concerning my software.

I'll be glad to submit whatever I need to submit but please correct this error!

Thanks,

Christopher

Online DavidR

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Re: False positive - costing me money and a headache!
« Reply #1 on: June 05, 2009, 07:20:59 PM »
Send the sample to virus@avast.com zipped and password protected with the password in email body, a link to this topic might help and false positive in the subject.

You could also check the  file at: VirusTotal - Multi engine on-line virus scanner and see if there any other AVs detecting this also.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD - 27" external monitor 1440p 2560x1440 resolution - avast! free  24.9.6130 (build 24.9.9452.762) UI 1.0.818/ Firefox, uBlock Origin Lite, uMatrix/ MailWasher Pro/ Avast! Mobile Security

Offline Lisandro

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Re: False positive - costing me money and a headache!
« Reply #2 on: June 05, 2009, 07:24:11 PM »
Can you inform the file as being a false positive? (click on the bottom right of the virus warning message).

Please submit it to VirusTotal and let us know the result. VirusTotal has a file size limit of 10Mb. You can use VirScan also.
Also you can send it in a password protected zip to virus@avast.com. Please, mention in the body of the message why you think it is a false positive and the password used. Thanks.

Edited (post David's suggestions): Sorry for the inconvenience.
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ChristopherLL

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Re: False positive - costing me money and a headache!
« Reply #3 on: June 05, 2009, 08:21:04 PM »
Thanks.

I have sent the zipped executable with password and also scanned on Joti and VirusTotal.

Joti reported Avast as the only positive and VirusTotal reported Avast and GData as it being a Win32:Trojan-gen {Other}

Thanks again,

Christopher

Online DavidR

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Re: False positive - costing me money and a headache!
« Reply #4 on: June 05, 2009, 08:44:07 PM »
You're welcome.

GData also uses avast as one of its two scanners so that is effectively only one detection.

The avast Win32:Trojan-gen is generic signature (the -gen at the end of the malware name), so that is trying to catch multiple variants of the same type of malware and is a fine balance between detecting a new variant and detecting something valid as infected.
Windows 10 Home 64bit/ Acer Aspire F15/ Intel Core i5 7200U 2.5GHz, 8GB DDR4 memory, 256GB SSD, 1TB HDD - 27" external monitor 1440p 2560x1440 resolution - avast! free  24.9.6130 (build 24.9.9452.762) UI 1.0.818/ Firefox, uBlock Origin Lite, uMatrix/ MailWasher Pro/ Avast! Mobile Security

Offline jsejtko

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Re: False positive - costing me money and a headache!
« Reply #5 on: June 05, 2009, 09:08:17 PM »
Hello,

this fp is fixed internally - will be released in 2 hours.

Regards

Offline Lisandro

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Re: False positive - costing me money and a headache!
« Reply #6 on: June 06, 2009, 03:39:45 AM »
will be released in 2 hours.
Thanks for the quick answer.
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