topic Re: DNS Signatures in Advanced Threat Prevention Discussions

DNS Signatures

SKumarDoli — Tue, 25 Apr 2023 17:46:40 GMT

some logs showing the message “Suspicious DNS Query”, it will easy for us to analyse. But the logs showing code “577407756(577407756)”, we are not able to understand what it mean for.

Re: DNS Signatures

ymiyashita — Wed, 26 Apr 2023 00:07:10 GMT

The following KBs might be useful.

- Threat name is not showing up in exported csv threat logs
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000PNDQCA4

- Panorama threat logs is not showing the name of threat signature
https://knowledgebase.paloaltonetworks.com/kCSArticleDetail?id=kA10g000000PM0B

Re: DNS Signatures

SKumarDoli — Fri, 28 Apr 2023 11:29:14 GMT

Can check what is this domain “archive-onlines.ga”?

The source address is a network device, it should not be accessing anything. But in palo alto detected the DNS traffic from 10.x.x.x to 10.x.x.x which the DNS server.

We don’t see any setting in the network device that set to access the URL.

Is that a false-positive in palo alto?

Re: DNS Signatures

ymiyashita — Mon, 01 May 2023 01:17:28 GMT

The Palo Alto Networks firewall detected it, so the DNS query was there, at least.

If the network device you mentioned was not supposed to access the site, the DNS query should have been blocked by the firewall.

For your info:
Some other security vendors classified it as Phishing.
https://www.virustotal.com/gui/domain/archive-onlines.ga/detection

The domain is NXDOMAIN at this time.

I don't think it was a false positive.