Feb  4 03:15:06 mail postfix/smtpd[12547]: warning: unknown[185.234.216.206]: SASL LOGIN authentication failed: authentication failure

[2020-02-26 22:38:49] NOTICE[14744] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '' failed for '5.183.92.32:64598' (callid: 376215522-649646893-389571818) - Failed to authenticate
[2020-02-26 22:38:49] SECURITY[20721] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-02-26T22:38:49.492+0100",Severity="Error",Service="PJSIP",EventVersion="1",AccountID="",SessionID="376215522-649646893-389571818",LocalAddress="IPV4/UDP/185.118.196.148/5060",RemoteAddress="IPV4/UDP/5.183.92.32/64598",Challenge="1582753129/dad733ecc9e5841b0a1529ab2e7adcda",Response="1de0935f9f82950b6c3e7fb95c212f82",ExpectedResponse=""
[2020-02-26 22:38:49] NOTICE[14744] res_pjsip/pjsip_distributor.c: Request 'REGISTER' from '' failed for '5.183.92.32:64598' (callid: 376215522-649646893-389571818) - Failed to authenticate
[2020-02-26 22:38:49] SECURITY[20721] res_security_log.c: SecurityEvent="ChallengeResponseFailed",EventTV="2020-02-26T22:38:49.563+0

2020-02-26T23:18:16.313176ns386461 sshd\[17672\]: Invalid user wangq from 200.88.48.99 port 41806
2020-02-26T23:18:16.319905ns386461 sshd\[17672\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.88.48.99
2020-02-26T23:18:18.257223ns386461 sshd\[17672\]: Failed password for invalid user wangq from 200.88.48.99 port 41806 ssh2
2020-02-26T23:34:30.011649ns386461 sshd\[31700\]: Invalid user xyp from 200.88.48.99 port 35470
2020-02-26T23:34:30.018103ns386461 sshd\[31700\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=200.88.48.99
...

Feb 26 22:51:00 pornomens sshd\[26843\]: Invalid user libuuid from 118.25.178.131 port 43186
Feb 26 22:51:00 pornomens sshd\[26843\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=118.25.178.131
Feb 26 22:51:02 pornomens sshd\[26843\]: Failed password for invalid user libuuid from 118.25.178.131 port 43186 ssh2
...

scan z

Feb 26 22:31:10 mail postfix/smtpd\[31531\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Feb 26 22:32:35 mail postfix/smtpd\[31531\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Feb 26 22:43:42 mail postfix/smtpd\[31850\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\
Feb 26 23:21:07 mail postfix/smtpd\[32450\]: warning: unknown\[45.95.168.159\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6\

Feb 26 12:06:58 wbs sshd\[6760\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip8.ip-51-83-125.eu  user=root
Feb 26 12:07:00 wbs sshd\[6760\]: Failed password for root from 51.83.125.8 port 58316 ssh2
Feb 26 12:16:51 wbs sshd\[7642\]: Invalid user confluence from 51.83.125.8
Feb 26 12:16:51 wbs sshd\[7642\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=ip8.ip-51-83-125.eu
Feb 26 12:16:54 wbs sshd\[7642\]: Failed password for invalid user confluence from 51.83.125.8 port 32874 ssh2

Automatic report - Port Scan Attack

Feb 26 16:47:49 NPSTNNYC01T sshd[30608]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=113.128.179.250
Feb 26 16:47:51 NPSTNNYC01T sshd[30608]: Failed password for invalid user bing from 113.128.179.250 port 9224 ssh2
Feb 26 16:51:08 NPSTNNYC01T sshd[30725]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=113.128.179.250
...

2020-02-26T23:32:20.910540scmdmz1 sshd[27352]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.169.192  user=root
2020-02-26T23:32:22.712286scmdmz1 sshd[27352]: Failed password for root from 222.186.169.192 port 30178 ssh2
2020-02-26T23:32:21.059210scmdmz1 sshd[27354]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.169.192  user=root
2020-02-26T23:32:23.332521scmdmz1 sshd[27354]: Failed password for root from 222.186.169.192 port 32802 ssh2
2020-02-26T23:32:20.910540scmdmz1 sshd[27352]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.169.192  user=root
2020-02-26T23:32:22.712286scmdmz1 sshd[27352]: Failed password for root from 222.186.169.192 port 30178 ssh2
2020-02-26T23:32:25.491300scmdmz1 sshd[27352]: Failed password for root from 222.186.169.192 port 30178 ssh2
...

Feb 26 23:22:46 amit sshd\[1412\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.215  user=root
Feb 26 23:22:48 amit sshd\[1412\]: Failed password for root from 222.186.173.215 port 27382 ssh2
Feb 26 23:23:05 amit sshd\[1414\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.173.215  user=root
...

Unauthorised access (Feb 26) SRC=60.174.234.44 LEN=52 TTL=113 ID=32752 DF TCP DPT=1433 WINDOW=8192 SYN

$f2bV_matches

Feb 27 02:51:11 gw1 sshd[14823]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=125.31.19.94
Feb 27 02:51:13 gw1 sshd[14823]: Failed password for invalid user wuwei from 125.31.19.94 port 53794 ssh2
...

Feb 26 12:24:42 eddieflores sshd\[27033\]: Invalid user mapred from 122.155.174.36
Feb 26 12:24:42 eddieflores sshd\[27033\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.155.174.36
Feb 26 12:24:43 eddieflores sshd\[27033\]: Failed password for invalid user mapred from 122.155.174.36 port 44686 ssh2
Feb 26 12:31:32 eddieflores sshd\[27560\]: Invalid user sgi from 122.155.174.36
Feb 26 12:31:32 eddieflores sshd\[27560\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.155.174.36