The IP has triggered Cloudflare WAF. CF-Ray: 543636cbb8d977b2 | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: jschallenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: api.skk.moe | User-Agent: Mozilla/5.0 (Linux; U; Android 9; zh-CN; vivo Z1 Build/PKQ1.180819.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 UCBrowser/12.6.6.1046 Mobile Safari/537.36 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 5435dbc1a8aee4fa | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: jschallenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: ip.skk.moe | User-Agent: Mozilla/5.0 (Linux; U; Android 10; zh-CN; PCLM10 Build/QKQ1.190825.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 Quark/3.6.2.122 Mobile Safari/537.36 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 5436372e9f21e4fa | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: jschallenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: ip.skk.moe | User-Agent: Mozilla/5.0 (Linux; U; Android 9; zh-CN; vivo Z1 Build/PKQ1.180819.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 UCBrowser/12.6.6.1046 Mobile Safari/537.36 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 543850f4095aeb75 | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: jschallenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: d.skk.moe | User-Agent: Mozilla/5.0 (iPhone; CPU iPhone OS 13_1_3 like Mac OS X; zh-CN) AppleWebKit/537.51.1 (KHTML, like Gecko) Mobile/17A878 UCBrowser/12.7.1.1240 Mobile  AliApp(TUnionSDK/0.1.20.3) | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 543379425d06e50a | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: jschallenge | Country: CN | CF_IPClass: noRecord | Protocol: HTTP/1.1 | Method: GET | Host: disqus.skk.moe | User-Agent: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_2 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8H7 Safari/6533.18.5 UCBrowser/12.2.8.1008 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 5433794fcdf5eb99 | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: jschallenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: disqus.skk.moe | User-Agent: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_2 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8H7 Safari/6533.18.5 UCBrowser/12.2.8.1008 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 5432e94f2c79eb45 | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: jschallenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: ip.skk.moe | User-Agent: Mozilla/5.0 (Linux; U; Android 8.1.0; zh-CN; 16th Plus Build/OPM1.171019.026) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 Quark/3.6.2.122 Mobile Safari/537.36 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 5431524afcb3e80d | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: jschallenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: img.skk.moe | User-Agent: Mozilla/5.0 (Linux; U; Android 9; zh-CN; GLK-AL00 Build/HUAWEIGLK-AL00) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 UCBrowser/12.7.1.1051 Mobile Safari/537.36 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 54315244eedcd386 | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: jschallenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: img.skk.moe | User-Agent: Mozilla/5.0 (Linux; U; Android 9; zh-CN; GLK-AL00 Build/HUAWEIGLK-AL00) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 UCBrowser/12.7.1.1051 Mobile Safari/537.36 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 5416ccf66b55e50e | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: challenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: img.skk.moe | User-Agent: Mozilla/5.0 (Linux; U; Android 9; zh-CN; Redmi K20 Pro Build/PKQ1.181121.001) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 Quark/3.6.2.122 Mobile Safari/537.36 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The IP has triggered Cloudflare WAF. CF-Ray: 541259482eb4eb49 | WAF_Rule_ID: asn | WAF_Kind: firewall | CF_Action: challenge | Country: CN | CF_IPClass: unknown | Protocol: HTTP/1.1 | Method: GET | Host: img.skk.moe | User-Agent: Mozilla/5.0 (Linux; U; Android 6.0.1; zh-CN; OPPO R9sk Build/MMB29M) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 UCBrowser/12.7.6.1056 Mobile Safari/537.36 | CF_DC: LAX. Report generated by Cloudflare-WAF-to-AbuseIPDB (https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB).

The%20IP%20has%20triggered%20Cloudflare%20WAF.%20Report%20generated%20by%20Cloudflare-WAF-to-AbuseIPDB%20(https://github.com/SukkaW/Cloudflare-WAF-to-AbuseIPDB)

Blocked for port scanning.
Time: Tue Oct 15. 19:44:47 2019 +0200
IP: 49.7.43.8 (CN/China/-)

Sample of block hits:
Oct 15 19:43:42 vserv kernel: [44763591.510049] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=49.7.43.8 DST=[removed] LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=13671 DF PROTO=TCP SPT=30539 DPT=25084 WINDOW=29200 RES=0x00 SYN URGP=0
Oct 15 19:43:43 vserv kernel: [44763592.512217] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=49.7.43.8 DST=[removed] LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=13672 DF PROTO=TCP SPT=30539 DPT=25084 WINDOW=29200 RES=0x00 SYN URGP=0
Oct 15 19:43:45 vserv kernel: [44763594.517298] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=49.7.43.8 DST=[removed] LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=13673 DF PROTO=TCP SPT=30539 DPT=25084 WINDOW=29200 RES=0x00 SYN URGP=0
Oct 15 19:43:49 vserv kernel: [44763598.525602] Firewall: *TCP_IN Blocked* IN=eth0 OUT= MAC= SRC=49.7.43.8 DST=[removed] LEN=60 TOS=0x00 PREC=0x00 TTL=45 ID=13674 DF PROTO=TCP SPT=30539 DPT=25084 WINDOW=29200

2019-11-14T16:40:18.844733shield sshd\[1740\]: Invalid user addyson from 62.173.149.58 port 50068
2019-11-14T16:40:18.850040shield sshd\[1740\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.173.149.58
2019-11-14T16:40:20.922513shield sshd\[1740\]: Failed password for invalid user addyson from 62.173.149.58 port 50068 ssh2
2019-11-14T16:47:10.687769shield sshd\[2291\]: Invalid user thudium from 62.173.149.58 port 59458
2019-11-14T16:47:10.691524shield sshd\[2291\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=62.173.149.58

Nov 14 16:28:22 webserver postfix/smtpd\[31469\]: NOQUEUE: reject: RCPT from unknown\[193.32.160.148\]: 454 4.7.1 \: Relay access denied\; from=\ to=\ proto=ESMTP helo=\<\[193.32.160.151\]\>
Nov 14 16:28:22 webserver postfix/smtpd\[31469\]: NOQUEUE: reject: RCPT from unknown\[193.32.160.148\]: 454 4.7.1 \: Relay access denied\; from=\ to=\ proto=ESMTP helo=\<\[193.32.160.151\]\>
Nov 14 16:28:22 webserver postfix/smtpd\[31469\]: NOQUEUE: reject: RCPT from unknown\[193.32.160.148\]: 454 4.7.1 \: Relay access denied\; from=\ to=\ proto=ESMTP helo=\<\[193.32.160.151\]\>
Nov 14 16:28:22 webserver postfix/smtpd\[31469\]: NOQUEUE: reject: RCPT from unknown\[193.32.160.148\]: 454 4.7.1 \: Relay access denied\;
...

Nov 14 05:46:23 auw2 sshd\[23325\]: Invalid user yongzong from 106.13.83.251
Nov 14 05:46:23 auw2 sshd\[23325\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.83.251
Nov 14 05:46:25 auw2 sshd\[23325\]: Failed password for invalid user yongzong from 106.13.83.251 port 53520 ssh2
Nov 14 05:51:26 auw2 sshd\[23708\]: Invalid user netbsd from 106.13.83.251
Nov 14 05:51:26 auw2 sshd\[23708\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.13.83.251

failed_logins

Nov 14 15:22:55 game-panel sshd[22318]: Failed password for root from 128.199.44.102 port 37018 ssh2
Nov 14 15:27:03 game-panel sshd[22489]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.44.102
Nov 14 15:27:05 game-panel sshd[22489]: Failed password for invalid user admin from 128.199.44.102 port 55892 ssh2

Nov 14 17:10:32 legacy sshd[29786]: Failed password for root from 222.94.73.173 port 15612 ssh2
Nov 14 17:15:35 legacy sshd[30016]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.94.73.173
Nov 14 17:15:37 legacy sshd[30016]: Failed password for invalid user mysql from 222.94.73.173 port 15513 ssh2
...

Unauthorized IMAP connection attempt

Nov 14 16:29:30 localhost sshd\[1757\]: Invalid user server1 from 51.77.140.244 port 57422
Nov 14 16:29:30 localhost sshd\[1757\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.140.244
Nov 14 16:29:32 localhost sshd\[1757\]: Failed password for invalid user server1 from 51.77.140.244 port 57422 ssh2
Nov 14 16:37:31 localhost sshd\[1982\]: Invalid user named from 51.77.140.244 port 41250
Nov 14 16:37:31 localhost sshd\[1982\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.140.244
...

F2B jail: sshd. Time: 2019-11-14 17:56:15, Reported by: VKReport

11,90-02/01 [bc01/m62] PostRequest-Spammer scoring: Dodoma

Nov 14 17:31:37 vps691689 sshd[30257]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=81.30.181.117
Nov 14 17:31:39 vps691689 sshd[30257]: Failed password for invalid user appman from 81.30.181.117 port 58714 ssh2
...

"Fail2Ban detected SSH brute force attempt"

Nov 14 17:26:55 vps666546 sshd\[26684\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.154.59.66  user=root
Nov 14 17:26:56 vps666546 sshd\[26684\]: Failed password for root from 122.154.59.66 port 4560 ssh2
Nov 14 17:31:32 vps666546 sshd\[26919\]: Invalid user 22 from 122.154.59.66 port 54614
Nov 14 17:31:32 vps666546 sshd\[26919\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=122.154.59.66
Nov 14 17:31:34 vps666546 sshd\[26919\]: Failed password for invalid user 22 from 122.154.59.66 port 54614 ssh2
...

Nov 14 06:46:11 kapalua sshd\[31031\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.ip-51-68-123.eu  user=nobody
Nov 14 06:46:12 kapalua sshd\[31031\]: Failed password for nobody from 51.68.123.192 port 45884 ssh2
Nov 14 06:50:01 kapalua sshd\[31354\]: Invalid user ncar from 51.68.123.192
Nov 14 06:50:01 kapalua sshd\[31354\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=192.ip-51-68-123.eu
Nov 14 06:50:03 kapalua sshd\[31354\]: Failed password for invalid user ncar from 51.68.123.192 port 55752 ssh2

FTP Brute-Force reported by Fail2Ban