If you see a lot of FTP requests and responses, then it is likely that the web server engine is IIS. If we had a video livestream of a clock being sent to Mars, what would we see? PCAP analysis basics with Wireshark [updated 2021 See also SampleCaptures#SSL_with_decryption_keys. Is it documented somewhere or did you check for both and observed it. What should I do? Certificate issuer data for Dridex HTTPS C2 traffic on 85.114.134[. To ensure that unnecessary keys are not leaked, you can use the inject-tls-secrets.py script from https://gist.github.com/Lekensteyn/f64ba6d6d2c6229d6ec444647979ea24 to filter the key log file and add the required secrets to a capture file. With Dridex, the stateOrProvinceName consists of random characters, and the LocalityName is the capital city of whatever country is used for the countryName. To configure keys, use the RSA keys dialog instead. This will allow you to see the network traffic that is being sent and received. The certificate issuer data is similar to that of the first example. Learn more about Stack Overflow the company, and our products. After applying the filter, select the first frame, go to the frame details section and work your way to a list of lines that start with the term RDNSequence item as done in the first three examples. All three HTTP GET requests to adv.epostoday[. If you see a lot of IIS logs, then it is likely that the web server engine is IIS. I think that the answer is what you started with - it will tell you TLS is there, but won't parse the details as it would with a native TLS session. If you see a lot of IIS configuration files, then it is likely that the web server engine is IIS. What are the arguments for/against anonymous authorship of the Gospels. It depends on its type and count off different interfaces. Wireshark can automatically resolve these IP address to domain names, although this feature isnt enabled by default. How did you figure out that TLS 1.1 is 0x0302 and TLS 1.2 is 0x0303? When viewing a website using HTTPS, a certificate is sent by the web server to a client's web browser. Now, I've seen varying reports as to whether Wireshark can properly parse TDS packets with encoded TLS. Check the certificate issuer data for both IP addresses and find the data listed below. When you enable this option, youll see domain names instead of IP addresses whenever possible. Additionally, there's a cleartext "sqlexpress2012" string in the packet, which wouldn't be there if this was a TLS Client Hello. id-at-commonName=Ateei7thapom.statonrc.loan, id-at-stateOrProvinceName=Sshopedts Inccofrew, id-at-commonName=avothelyop.thedai9neasysb.author, id-at-organizationName=Icccodiso Icloneedb Oyj, our previous Wireshark tutorial about customizing the column display, HTTPS C2 traffic from recent IcedID malware infections. The downside is that Wireshark will have to look up each domain name, polluting the captured traffic with additional DNS requests. This is a pretty good example of what you can find when passwords are being transmitted in plain text, which is why Telnet is no longer as popular as it used to be.