2026-06-05T09:20:08.444022+02:00 rpi4 sshd[3796]: Invalid user deploy from 89.106.84.74 port 59494
2 ...
show more2026-06-05T09:20:08.444022+02:00 rpi4 sshd[3796]: Invalid user deploy from 89.106.84.74 port 59494
2026-06-05T09:20:08.452854+02:00 rpi4 sshd[3796]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=89.106.84.74
2026-06-05T09:20:10.194151+02:00 rpi4 sshd[3796]: Failed password for invalid user deploy from 89.106.84.74 port 59494 ssh2
2026-06-05T09:21:56.866341+02:00 rpi4 sshd[3802]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=89.106.84.74 user=root
2026-06-05T09:21:58.768254+02:00 rpi4 sshd[3802]: Failed password for root from 89.106.84.74 port 33790 ssh2
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(sshd) Failed SSH login from 89.106.84.74 (US/United States/74.0-255.84.106.89.in-addr.arpa): 5 in t ...
show more(sshd) Failed SSH login from 89.106.84.74 (US/United States/74.0-255.84.106.89.in-addr.arpa): 5 in the last 3600 secs; Ports: *; Direction: 1; Trigger: LF_SSHD; Logs: Jun 5 07:13:02 22577 sshd[29419]: Invalid user scan from 89.106.84.74 port 34538
Jun 5 07:13:04 22577 sshd[29419]: Failed password for invalid user scan from 89.106.84.74 port 34538 ssh2
Jun 5 07:19:18 22577 sshd[32535]: Invalid user testuser from 89.106.84.74 port 47624
Jun 5 07:19:21 22577 sshd[32535]: Failed password for invalid user testuser from 89.106.84.74 port 47624 ssh2
Jun 5 07:21:08 22577 sshd[1053]: Invalid user deploy from 89.106.84.74 port 44240
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(sshd) Failed SSH login from 89.106.84.74 (US/United States/74.0-255.84.106.89.in-addr.arpa): 5 in t ...
show more(sshd) Failed SSH login from 89.106.84.74 (US/United States/74.0-255.84.106.89.in-addr.arpa): 5 in the last 3600 secs; Ports: *; Direction: 1; Trigger: LF_SSHD; Logs: Jun 5 01:04:46 17988 sshd[12506]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=89.106.84.74 user=root
Jun 5 01:04:48 17988 sshd[12506]: Failed password for root from 89.106.84.74 port 54392 ssh2
Jun 5 01:12:20 17988 sshd[15637]: Invalid user mgeweb from 89.106.84.74 port 46680
Jun 5 01:12:23 17988 sshd[15637]: Failed password for invalid user mgeweb from 89.106.84.74 port 46680 ssh2
Jun 5 01:14:16 17988 sshd[16411]: Invalid user jhuapl from 89.106.84.74 port 41886
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Credential enumeration with SSH-2.0-libssh_0.9.6 client. Three attempts used variations of weak cred ...
show moreCredential enumeration with SSH-2.0-libssh_0.9.6 client. Three attempts used variations of weak credentials: 345gs5662d34/345gs5662d34, root/3245gs5662d34, root/Xs123456. Attacker executed SSH key injection for persistence: removed existing .ssh directory, recreated it, and attempted to install a public RSA key (AAAAB3NzaC1yc2EAAAABJQAAAQEArDp4cun2lhr4KUhBGE7VvAcwdli2a8dbnrTOrbMz1+5O73fcBOx8NVbUT0bUanUV9tJ2/9p7+vD0EpZ3Tz/+0kX34uAx1RV/75GVOmNx+9EuWOnvNoaJe0QXx). Second command attempted to establish file-level persistence via chattr and lockr utilities to lock down the .ssh directory with immutable and append-only attributes, preventing removal or modification of injected keys. Activity suggests automated scanning leveraging libssh library with credential dictionary attack followed by SSH key injection for unauthorized access persistence. Attack chain focuses on establishing long-term access through SSH authentication bypass and preventing cleanup of persistence mechanisms.
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2026-06-05T12:41:05.876072+07:00 euxcvn124025 sshd[2365749]: Invalid user ems from 89.106.84.74 port ...
show more2026-06-05T12:41:05.876072+07:00 euxcvn124025 sshd[2365749]: Invalid user ems from 89.106.84.74 port 55598
2026-06-05T12:42:55.865033+07:00 euxcvn124025 sshd[2365763]: Invalid user contactus from 89.106.84.74 port 41372
2026-06-05T12:44:44.007918+07:00 euxcvn124025 sshd[2365781]: Invalid user roger from 89.106.84.74 port 41366
2026-06-05T12:46:29.577865+07:00 euxcvn124025 sshd[2365801]: Invalid user fanclub from 89.106.84.74 port 33216
2026-06-05T12:48:16.019868+07:00 euxcvn124025 sshd[2365822]: Invalid user green from 89.106.84.74 port 52854
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2026-06-05T12:22:14.115835+07:00 euxcvn124025 sshd[2365527]: Invalid user refer from 89.106.84.74 po ...
show more2026-06-05T12:22:14.115835+07:00 euxcvn124025 sshd[2365527]: Invalid user refer from 89.106.84.74 port 46112
2026-06-05T12:24:44.103218+07:00 euxcvn124025 sshd[2365549]: Invalid user lotto from 89.106.84.74 port 60200
2026-06-05T12:26:35.513374+07:00 euxcvn124025 sshd[2365566]: Invalid user epos from 89.106.84.74 port 44192
2026-06-05T12:28:25.097299+07:00 euxcvn124025 sshd[2365583]: Invalid user tsweb from 89.106.84.74 port 58056
2026-06-05T12:30:13.364429+07:00 euxcvn124025 sshd[2365596]: Invalid user app01 from 89.106.84.74 port 56010
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Brute-Force
SSH
Anonymous
(sshd) Failed SSH login from 89.106.84.74 (DE/Germany/-): 5 in the last 3600 secs; Ports: *; Directi ...
show more(sshd) Failed SSH login from 89.106.84.74 (DE/Germany/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jun 5 01:10:22 server5 sshd[10790]: Invalid user refer from 89.106.84.74
Jun 5 01:10:22 server5 sshd[10790]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=89.106.84.74
Jun 5 01:10:24 server5 sshd[10790]: Failed password for invalid user refer from 89.106.84.74 port 37564 ssh2
Jun 5 01:23:02 server5 sshd[15496]: Invalid user lotto from 89.106.84.74
Jun 5 01:23:02 server5 sshd[15496]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=89.106.84.74
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2026-06-05T05:09:59.528209zimbra5 sshd[3446247]: pam_unix(sshd:auth): authentication failure; lognam ...
show more2026-06-05T05:09:59.528209zimbra5 sshd[3446247]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=89.106.84.74
2026-06-05T05:10:01.559929zimbra5 sshd[3446247]: Failed password for invalid user refer from 89.106.84.74 port 55908 ssh2
2026-06-05T05:22:59.322864zimbra5 sshd[3456016]: Invalid user lotto from 89.106.84.74 port 56736
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Jun 5 06:21:04 s1-jellyfish sshd[1642300]: pam_unix(sshd:auth): authentication failure; logname= ui ...
show moreJun 5 06:21:04 s1-jellyfish sshd[1642300]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=89.106.84.74
Jun 5 06:21:06 s1-jellyfish sshd[1642300]: Failed password for invalid user refer from 89.106.84.74 port 55546 ssh2
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SSH Brute force: 1 attempts were recorded from 89.106.84.74
2026-06-05T04:04:39+02:00 User postfix f ...
show moreSSH Brute force: 1 attempts were recorded from 89.106.84.74
2026-06-05T04:04:39+02:00 User postfix from 89.106.84.74 not allowed because none of user's groups are listed in AllowGroups
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Brute-Force
SSH
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