The host at this IP address is obviously operated by cybercriminals. It is running a malware botnet controller which is being used to control infected computers (bots) around the globe using a trojan horse.
Malware botnet controller located at 144.76.183.53 on port 5634 TCP:
$ telnet 144.76.183.53 5634
Trying 144.76.183.53…
Connected to 144.76.183.53.
Escape character is ‘^]’
$ nslookup 144.76.183.53
static.53.183.76.144.clients.your-server.de
Referencing malware samples (MD5 hash):
04c54208f1b25e8acfdaa7254de39187 — AV detection: 51 / 68 (75.00%)
21a0dbfd7390af7cf0c45599fd64f7b0 — AV detection: 38 / 69 (55.07%)
22295ce7ab4fe3fba5b684bcce9c4216 — AV detection: 32 / 65 (49.23%)
28adebb880a9b35e24c7faf174ae11e8 — AV detection: 21 / 66 (31.82%)
2cce5533ec8f52ac272dee02e36c3260 — AV detection: 44 / 65 (67.69%)
2f8eb2e173c93dae1ddd17031ee8aa0e — AV detection: 44 / 65 (67.69%)
3036473dbbc33e438e536cf37197b837 — AV detection: 28 / 67 (41.79%)
33647b416fb2e49f3a8a57fd7b19c287 — AV detection: 28 / 68 (41.18%)
398a709cdb0de1d15c286839ba6c48ed — AV detection: 47 / 68 (69.12%)
3ad67010f1d4a291524a848856543ec8 — AV detection: 36 / 69 (52.17%)
3c0b19faee31188388d29d5e467437ea — AV detection: 29 / 69 (42.03%)
4df0d4be3b3abb5ca237d11013411885 — AV detection: 23 / 61 (37.70%)
58e139c2d34846d74e928df2f53841c1 — AV detection: 28 / 57 (49.12%)
7138bafc49f4be2a21c030ee824a62f7 — AV detection: 37 / 68 (54.41%)
75594311064ab3daf0a57435649b43a4 — AV detection: 21 / 66 (31.82%)
a19de5d2a094b016b22dfda4c2138003 — AV detection: 53 / 68 (77.94%)
a7a12dbcc43087db28c9f450d1e31ae7 — AV detection: 36 / 68 (52.94%)
a808390df77d6ac51216b5ce4f4f4adc — AV detection: 40 / 68 (58.82%)
ac64a47120757eae812a79d0dc42c983 — AV detection: 42 / 66 (63.64%)
ad95953f1162d1179340da7c4b087fb5 — AV detection: 38 / 67 (56.72%)
ae1e526753e3f3816818586c5ede5ef6 — AV detection: 33 / 68 (48.53%)
ae4c242318b332e9e71da5fb7251e351 — AV detection: 21 / 66 (31.82%)
b05f49e2020b4e323441976fe58c9096 — AV detection: 35 / 64 (54.69%)
b3e7ffc2b68ac03d4d2cfbb8f3e33080 — AV detection: 36 / 65 (55.38%)
c5833e3ae3bffe7c8c5101552bc82638 — AV detection: 22 / 66 (33.33%)
d9656a6847305ce7a4d43e86216a5b9e — AV detection: 33 / 65 (50.77%)
fab57a35302683a2c2fb2b8bd5361e23 — AV detection: 33 / 67 (49.25%)