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.
Loki botnet controller located at 5.8.76.181 on port 80 (using HTTP POST):
hXXp://secure01-redirect.net/ga13/fre.php
secure01-redirect.net. 600 IN A 5.8.76.181
Referencing malware binaries (MD5 hash):
1edc5ae8174533de1c038341b84685c5 — AV detection: 26 / 68 (38.24)
8449ee0cd73ae89d429ff7a6081fe0d9 — AV detection: 18 / 65 (27.69)
ca66da9aeea970c1476519b769af2cf7 — AV detection: 26 / 68 (38.24)