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Trojan false positive in McAfee
christoff85
#1 Posted : Thursday, May 11, 2023 2:03:49 PM(UTC)
Rank: Newbie

Groups: Registered
Joined: 3/11/2021(UTC)
Posts: 1
Location: Poland

Hi,

I've been using Your product for several years without any issues. Suddenly this week, NCrunch stopped working with very strange symptoms.
After several hours of investigation I found out, that McAffe antivirus flagged nCrunch.Core.dll as Trojan and deleted it from my hard drive.

As this is company PC I cannot alter McAfee in any way.
Is there any other option, to convince McAfee that Your product is 100% safe?

Best regards
Chris


These are the two scans with false positives:

First:
Analyzer / Detector
Analyzer content creation date 10.5.2023 9:24 AM
Product name McAfee Endpoint Security
Product version 10.7.0.2522
McAfee GTI query Yes
Task name On-Access Scan
Feature name On-Access Scan

Threat
Action taken Delete
Threat category Malware detected
Threat detected on creation No
Threat event ID 1027
Threat handled Yes
Threat name GenericRXVX-GX!D9B04E5C3803
Threat severity Critical
Threat timestamp 11.5.2023 3:36 PM
Threat type Trojan

Source
Source process name SYSTEM

Target
Target access time 11.5.2023 3:36 PM
Target create time 7.2.2023 3:52 PM
Target file size (bytes) 558080
Target hash d9b04e5c38034def22f07501566ef1cd

Target modify time 7.2.2023 3:52 PM
Target name nCrunch.Core.dll
Target path C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\Extensions\Remco Software\NCrunch for Visual Studio 2022
Target user name ZARZĄDZANIE NT\SYSTEM


Second:
Analyzer / Detector
Analyzer content creation date 9.5.2023 9:26 AM
Product name McAfee Endpoint Security
Product version 10.7.0.2522
McAfee GTI query Yes
Task name On-Access Scan
Feature name On-Access Scan

Threat
Action taken Delete
Threat category Malware detected
Threat detected on creation No
Threat event ID 1027
Threat handled Yes
Threat name GenericRXVX-GX!214BEC10815C
Threat severity Critical
Threat timestamp 10.5.2023 1:33 PM
Threat type Trojan

Source
Source process name SYSTEM

Target
Target access time 10.5.2023 1:33 PM
Target create time 3.11.2021 2:11 PM
Target file size (bytes) 504832
Target hash 214bec10815c260fc63fedb192238373
Target modify time 3.11.2021 2:11 PM
Target name nCrunch.Core.dll
Target path C:\Program Files\Microsoft Visual Studio\2022\Professional\Common7\IDE\Extensions\Remco Software\NCrunch for Visual Studio 2022
Target user name ZARZĄDZANIE NT\SYSTEM
Remco
#2 Posted : Thursday, May 11, 2023 8:47:48 PM(UTC)
Rank: NCrunch Developer

Groups: Administrators
Joined: 4/16/2011(UTC)
Posts: 6,974

Thanks: 929 times
Was thanked: 1256 time(s) in 1169 post(s)
Hi, thanks for sharing this issue.

False positives do appear from time to time. There's a whole world full of AV products out there and occasionally they get things wrong.

The vendors of AV products pretty much always have a form you can submit to declare that the file is a false positive. Unfortunately, this isn't a service we can handle as the developers of the software, as in most cases it needs to be handled by a licensed user. I suggest checking with McAfee for options on reporting the false positive. If you need to collect evidence that it's not a trojan, you can try submitting the file to one of the numerous scanner aggregation services which should show clear scans from all the other vendors.
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