If you are looking at this page, then more than likely, you noticed a scan coming from this server across your network and/or poking at the Connectionless LDAP Service on port 389/udp.
The Shadowserver Foundation is currently undertaking a project to search for publicly accessible devices that have the Connectionless LDAP Service running. The goal of this project is to identify openly accessible systems that have the Connectionless LDAP Service running and report them back to the network owners for remediation.
In addition to possibly making sensitive information available, these devices have the potential to be used in UDP amplification attacks and if at all possible, we would like to see these services made un-available to miscreants that would misuse these resources.
Servers that are configured this way have been incorporated into our reports and are being reported on a daily basis.
Information on UDP-based amplification attacks in general can be found in US-CERT alert TA14-017A at: https://www.us-cert.gov/ncas/alerts/TA14-017A
We are querying all computers with routable IPv4 addresses that are not firewalled from the internet on port 389/udp with a request for information about the LDAP server and capturing the response. We intend no harm, but if we are causing problems, please contact us at: dnsscan [at] shadowserver [dot] org.
To be removed from this set of scanning you will need to send an email to dnsscan [at] shadowserver [dot] org with the specific CIDR's that you would like to have removed. You will have to be the verifiable owner of these CIDR's and be able to prove that fact. Any address space that is whitelisted will be publicly available here: https://ldapscan.shadowserver.org/exclude.html
(Click image to enlarge)
These are the 77,000 devices with Connectionless LDAP accessible
If you would like to see more regions click here
If you would like us to not scan your network, please let us know and we will remove your networks from the scan.
Likewise, if you have anymore questions please feel free to send us an email at: gro [tod] revreswodahs [ta] nac ssnd