The host at this IP address is running a malware botnet controller which is being used to control infected computers (bots) around the globe using a trojan horse.
ArkeiStealer botnet controller located at 23.88.108.1 on port 80 (using HTTP POST):
hXXp://23.88.108.1/
$ nslookup 23.88.108.1
static.1.108.88.23.clients.your-server.de
Referencing malware binaries (MD5 hash):
22def90fe7900f44847974e6a6da2e85 — AV detection: 25 / 68 (36.76)
cd699463b57fef262c106818c1a548d2 — AV detection: 21 / 67 (31.34)
f19ba43b5e65508d09158e4300da31e3 — AV detection: 26 / 69 (37.68)