Meshcentral: Windows agent (background only) detected as Trojan

Created on 7 Jun 2019  路  9Comments  路  Source: Ylianst/MeshCentral

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With F-Secure scanner it will detect the Windows background only agent as a Trojan. With the interactive or backupground/interactive agent version then it is just fine.

help wanted

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Mesh agent isn't a trojan. Anyone experiencing this should report this false positive at https://www.f-secure.com/v-descs/false_positive.shtml

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Yes, if you upload the agent executable to VirusTotal, you will see the exact state. The 64bit version of the agent seems to do a lot better than the 32bit version. Bryan could look into this, but not before we release our new agent with lots of fixes. I recently got my certificate revoked because of this, not sure there is much we can do about it.

Mesh agent isn't a trojan. Anyone experiencing this should report this false positive at https://www.f-secure.com/v-descs/false_positive.shtml

Mesh agent isn't a trojan. Anyone experiencing this should report this false positive at https://www.f-secure.com/v-descs/false_positive.shtml

I think it is better to wait for the new agent release. And then check again. If still a false positive detection occurs, then we can report this to f-secure. But we need to test with all major scanners and report them. The problem is, I do not always know which scanner the remote system is using. For the users it must be as simpel as possible and not alarm about any potential trojans.

Thanks for the link. I will certainly be doing this and reporting false positives, if other such links exists, I invite anyone to please post them. I do want to note that the full agent source code is present here: https://github.com/Ylianst/MeshAgent and so, can independently be audited and compiled.

By the way, if there is any suggestion on whether I should self-sign the MeshAgent vs not signing it at all. Commentary on this would be appreciated.

For OSX 10.15 (released in september) a signing (notarizing) process must be followed. This requirement will be forced for the new version 10.15.
It can be done already for current OSX version.
See details: https://developer.apple.com/documentation/security/notarizing_your_app_before_distribution

FYI. Just published MeshCentral v0.3.6-m with a new 32bit MeshAgent that passes all virustotal.com tests. So now, both 32bit and 64bit MeshCentral agents should not have a problem anymore.

I am going to close this issue since the latest Windows MeshAgent for 32bit and 64bit both pass the anti-malware test. The MacOS notarizing is a different issue, trying to figure out how it's going to apply to open source software.

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