Recent reportsWe have received reports of abusive activity from this IP address within the last week. It is
potentially still actively engaged in abusive activities.
2026-11-07T09:30:39.406016+00:00 ubuntu sshd[647460]: Failed password for invalid user student01 from 159.148.53.243 port 40014 ssh2
2026-11-07T09:34:15.387360+00:00 ubuntu sshd[648164]: Invalid user felix from 159.148.53.243 port 57912
2026-11-07T09 ...
show more2026-11-07T09:30:39.406016+00:00 ubuntu sshd[647460]: Failed password for invalid user student01 from 159.148.53.243 port 40014 ssh2
2026-11-07T09:34:15.387360+00:00 ubuntu sshd[648164]: Invalid user felix from 159.148.53.243 port 57912
2026-11-07T09:34:15.600308+00:00 ubuntu sshd[648164]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243
2026-11-07T09:34:17.742048+00:00 ubuntu sshd[648164]: Failed password for invalid user felix from 159.148.53.243 port 57912 ssh2
2026-11-07T09:37:39.297477+00:00 ubuntu sshd[648588]: Invalid user gtem from 159.148.53.243 port 48958
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2026-11-07T08:23:23.218680+00:00 ubuntu sshd[638885]: Failed password for invalid user vincent from 159.148.53.243 port 36876 ssh2
2026-11-07T08:26:51.269476+00:00 ubuntu sshd[639530]: Invalid user haneul from 159.148.53.243 port 33756
2026-11-07T08: ...
show more2026-11-07T08:23:23.218680+00:00 ubuntu sshd[638885]: Failed password for invalid user vincent from 159.148.53.243 port 36876 ssh2
2026-11-07T08:26:51.269476+00:00 ubuntu sshd[639530]: Invalid user haneul from 159.148.53.243 port 33756
2026-11-07T08:26:51.476310+00:00 ubuntu sshd[639530]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243
2026-11-07T08:26:53.447890+00:00 ubuntu sshd[639530]: Failed password for invalid user haneul from 159.148.53.243 port 33756 ssh2
2026-11-07T08:30:18.413638+00:00 ubuntu sshd[640124]: Invalid user pochoi from 159.148.53.243 port 36926
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2026-11-07T07:16:18.064313+00:00 ubuntu sshd[630530]: Failed password for invalid user andrea from 159.148.53.243 port 40234 ssh2
2026-11-07T07:19:53.018460+00:00 ubuntu sshd[631327]: Invalid user sankm from 159.148.53.243 port 37688
2026-11-07T07:19 ...
show more2026-11-07T07:16:18.064313+00:00 ubuntu sshd[630530]: Failed password for invalid user andrea from 159.148.53.243 port 40234 ssh2
2026-11-07T07:19:53.018460+00:00 ubuntu sshd[631327]: Invalid user sankm from 159.148.53.243 port 37688
2026-11-07T07:19:53.232848+00:00 ubuntu sshd[631327]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243
2026-11-07T07:19:55.937396+00:00 ubuntu sshd[631327]: Failed password for invalid user sankm from 159.148.53.243 port 37688 ssh2
2026-11-07T07:23:13.862133+00:00 ubuntu sshd[631866]: Invalid user lee1jun from 159.148.53.243 port 39490
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2026-11-07T06:05:44.794639+00:00 ubuntu sshd[621512]: Failed password for invalid user service from 159.148.53.243 port 59028 ssh2
2026-11-07T06:12:39.221655+00:00 ubuntu sshd[622987]: Invalid user gcjung from 159.148.53.243 port 45114
2026-11-07T06: ...
show more2026-11-07T06:05:44.794639+00:00 ubuntu sshd[621512]: Failed password for invalid user service from 159.148.53.243 port 59028 ssh2
2026-11-07T06:12:39.221655+00:00 ubuntu sshd[622987]: Invalid user gcjung from 159.148.53.243 port 45114
2026-11-07T06:12:39.435460+00:00 ubuntu sshd[622987]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243
2026-11-07T06:12:41.338127+00:00 ubuntu sshd[622987]: Failed password for invalid user gcjung from 159.148.53.243 port 45114 ssh2
2026-11-07T06:16:01.065382+00:00 ubuntu sshd[623544]: Invalid user hyunjin from 159.148.53.243 port 38592
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2026-11-07T04:54:38.916682+00:00 ubuntu sshd[612763]: Failed password for invalid user scan from 159.148.53.243 port 42558 ssh2
2026-11-07T04:58:39.085618+00:00 ubuntu sshd[613385]: Invalid user hjung from 159.148.53.243 port 33324
2026-11-07T04:58:3 ...
show more2026-11-07T04:54:38.916682+00:00 ubuntu sshd[612763]: Failed password for invalid user scan from 159.148.53.243 port 42558 ssh2
2026-11-07T04:58:39.085618+00:00 ubuntu sshd[613385]: Invalid user hjung from 159.148.53.243 port 33324
2026-11-07T04:58:39.296593+00:00 ubuntu sshd[613385]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243
2026-11-07T04:58:40.998348+00:00 ubuntu sshd[613385]: Failed password for invalid user hjung from 159.148.53.243 port 33324 ssh2
2026-11-07T05:02:39.936572+00:00 ubuntu sshd[614419]: Invalid user felix from 159.148.53.243 port 47886
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2026-11-07T03:44:52.537010+00:00 ubuntu sshd[604211]: Failed password for invalid user oracle from 159.148.53.243 port 39640 ssh2
2026-11-07T03:48:42.153645+00:00 ubuntu sshd[604907]: Invalid user hyeonjin from 159.148.53.243 port 53884
2026-11-07T03 ...
show more2026-11-07T03:44:52.537010+00:00 ubuntu sshd[604211]: Failed password for invalid user oracle from 159.148.53.243 port 39640 ssh2
2026-11-07T03:48:42.153645+00:00 ubuntu sshd[604907]: Invalid user hyeonjin from 159.148.53.243 port 53884
2026-11-07T03:48:42.361910+00:00 ubuntu sshd[604907]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243
2026-11-07T03:48:44.225103+00:00 ubuntu sshd[604907]: Failed password for invalid user hyeonjin from 159.148.53.243 port 53884 ssh2
2026-11-07T03:52:31.971510+00:00 ubuntu sshd[605811]: Invalid user jskwon from 159.148.53.243 port 51226
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2026-11-07T02:35:35.481364+00:00 ubuntu sshd[595637]: Failed password for invalid user chlee from 159.148.53.243 port 46364 ssh2
2026-11-07T02:39:30.301391+00:00 ubuntu sshd[596429]: Invalid user limwoojin from 159.148.53.243 port 43778
2026-11-07T02 ...
show more2026-11-07T02:35:35.481364+00:00 ubuntu sshd[595637]: Failed password for invalid user chlee from 159.148.53.243 port 46364 ssh2
2026-11-07T02:39:30.301391+00:00 ubuntu sshd[596429]: Invalid user limwoojin from 159.148.53.243 port 43778
2026-11-07T02:39:30.515140+00:00 ubuntu sshd[596429]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243
2026-11-07T02:39:32.379029+00:00 ubuntu sshd[596429]: Failed password for invalid user limwoojin from 159.148.53.243 port 43778 ssh2
2026-11-07T02:43:20.931176+00:00 ubuntu sshd[597339]: Invalid user isjang from 159.148.53.243 port 35748
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2026-11-07T01:26:40.853846+00:00 ubuntu sshd[587135]: Failed password for invalid user heejindo from 159.148.53.243 port 55996 ssh2
2026-11-07T01:30:26.137995+00:00 ubuntu sshd[588162]: Invalid user jinmyeong from 159.148.53.243 port 34706
2026-11-07 ...
show more2026-11-07T01:26:40.853846+00:00 ubuntu sshd[587135]: Failed password for invalid user heejindo from 159.148.53.243 port 55996 ssh2
2026-11-07T01:30:26.137995+00:00 ubuntu sshd[588162]: Invalid user jinmyeong from 159.148.53.243 port 34706
2026-11-07T01:30:26.352617+00:00 ubuntu sshd[588162]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243
2026-11-07T01:30:28.984842+00:00 ubuntu sshd[588162]: Failed password for invalid user jinmyeong from 159.148.53.243 port 34706 ssh2
2026-11-07T01:34:13.494160+00:00 ubuntu sshd[588975]: Invalid user bsc from 159.148.53.243 port 42120
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2026-11-07T00:18:52.833399+00:00 ubuntu sshd[578918]: Failed password for invalid user cb from 159.148.53.243 port 33486 ssh2
2026-11-07T00:22:33.092242+00:00 ubuntu sshd[580149]: User root from 159.148.53.243 not allowed because not listed in AllowU ...
show more2026-11-07T00:18:52.833399+00:00 ubuntu sshd[578918]: Failed password for invalid user cb from 159.148.53.243 port 33486 ssh2
2026-11-07T00:22:33.092242+00:00 ubuntu sshd[580149]: User root from 159.148.53.243 not allowed because not listed in AllowUsers
2026-11-07T00:22:33.305041+00:00 ubuntu sshd[580149]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243 user=root
2026-11-07T00:22:35.786868+00:00 ubuntu sshd[580149]: Failed password for invalid user root from 159.148.53.243 port 44594 ssh2
2026-11-07T00:26:18.682278+00:00 ubuntu sshd[580924]: Invalid user sungjun from 159.148.53.243 port 55658
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2026-11-06T23:09:24.490247+00:00 ubuntu sshd[519453]: Failed password for invalid user vyos from 159.148.53.243 port 47636 ssh2
2026-11-06T23:12:36.925077+00:00 ubuntu sshd[520171]: Invalid user hyunjin from 159.148.53.243 port 32988
2026-11-06T23:12 ...
show more2026-11-06T23:09:24.490247+00:00 ubuntu sshd[519453]: Failed password for invalid user vyos from 159.148.53.243 port 47636 ssh2
2026-11-06T23:12:36.925077+00:00 ubuntu sshd[520171]: Invalid user hyunjin from 159.148.53.243 port 32988
2026-11-06T23:12:37.139631+00:00 ubuntu sshd[520171]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=159.148.53.243
2026-11-06T23:12:39.246220+00:00 ubuntu sshd[520171]: Failed password for invalid user hyunjin from 159.148.53.243 port 32988 ssh2
2026-11-06T23:15:51.952700+00:00 ubuntu sshd[520726]: Invalid user gychoi from 159.148.53.243 port 46218
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SSH brute-force/credential stuffing against port 53360. 6 attempts from 2026-11-07T06:01:13.930336+08:00 to 2026-11-07T06:08:24.064013+08:00 (UTC+8). Evidence: sshd-session[2191139]: Failed password for invalid user sschoi from 159.148.53.243 port 35 ...
show moreSSH brute-force/credential stuffing against port 53360. 6 attempts from 2026-11-07T06:01:13.930336+08:00 to 2026-11-07T06:08:24.064013+08:00 (UTC+8). Evidence: sshd-session[2191139]: Failed password for invalid user sschoi from 159.148.53.243 port 35376 ssh2
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Brute-Force
SSH
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