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cPHulk Duplicate Entries

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8 comments

  • summitscout
    Not sure if it is related, but I noted a curious pattern in the exim_rejectlog: A failed attempt is followed a few seconds later by another " but just for the username and from another IP. It is quite clearly coordinated. Not sure what the purpose is. Must be an attempt to exploit something... 2019-08-11 13:02:44 dovecot_login authenticator failed for ip55.ip-147-135-109.us (99rdp.domain) [147.135.109.55]:52626: 535 Incorrect authentication data (set_id=admin@go.com) 2019-08-11 13:02:44 dovecot_login authenticator failed for ip55.ip-147-135-109.us (99rdp.domain) [147.135.109.55]:52621: 535 Incorrect authentication data (set_id=admin@go.com) 2019-08-11 13:02:45 dovecot_login authenticator failed for ip55.ip-147-135-109.us (99rdp.domain) [147.135.109.55]:52921: 535 Incorrect authentication data (set_id=admin@go.com) 2019-08-11 22:32:00 dovecot_plain authenticator failed for ([191.53.222.91]) [191.53.222.91]:43872: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-11 22:32:07 dovecot_plain authenticator failed for ([191.53.21.80]) [191.53.21.80]:41202: 535 Incorrect authentication data (set_id=moe) 2019-08-11 23:41:42 dovecot_plain authenticator failed for ([177.154.234.154]) [177.154.234.154]:48880: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-11 23:41:49 dovecot_plain authenticator failed for ([187.120.130.65]) [187.120.130.65]:42656: 535 Incorrect authentication data (set_id=moe) 2019-08-12 01:42:49 dovecot_plain authenticator failed for ([179.108.245.97]) [179.108.245.97]:57962: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 01:42:56 dovecot_plain authenticator failed for ([177.11.73.238]) [177.11.73.238]:43602: 535 Incorrect authentication data (set_id=moe) 2019-08-12 02:12:49 dovecot_plain authenticator failed for 187-84-174-84.beltraonet.com.br [187.84.174.84]:58200: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 02:13:08 dovecot_plain authenticator failed for ([187.62.149.78]) [187.62.149.78]:46973: 535 Incorrect authentication data (set_id=moe) 2019-08-12 03:24:03 dovecot_plain authenticator failed for ([177.154.238.117]) [177.154.238.117]:58716: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 03:24:10 dovecot_plain authenticator failed for ([189.51.103.63]) [189.51.103.63]:56748: 535 Incorrect authentication data (set_id=moe) 2019-08-12 04:13:42 dovecot_plain authenticator failed for ([187.1.27.76]) [187.1.27.76]:54484: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 04:13:49 dovecot_plain authenticator failed for ([131.108.244.87]) [131.108.244.87]:41214: 535 Incorrect authentication data (set_id=moe) 2019-08-12 05:28:23 dovecot_plain authenticator failed for ([201.46.59.120]) [201.46.59.120]:49152: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 05:28:34 dovecot_plain authenticator failed for ([191.241.167.51]) [191.241.167.51]:55148: 535 Incorrect authentication data (set_id=moe) 2019-08-12 06:06:58 dovecot_plain authenticator failed for ([138.118.169.13]) [138.118.169.13]:54321: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 06:07:07 dovecot_plain authenticator failed for ([191.241.167.107]) [191.241.167.107]:33257: 535 Incorrect authentication data (set_id=moe) 2019-08-12 07:00:33 dovecot_plain authenticator failed for ([141.98.80.74]) [141.98.80.74]:39058: 535 Incorrect authentication data (set_id=curly@example.org) 2019-08-12 07:19:11 dovecot_plain authenticator failed for ([187.120.129.247]) [187.120.129.247]:35619: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 07:19:18 dovecot_plain authenticator failed for ([179.108.240.126]) [179.108.240.126]:41823: 535 Incorrect authentication data (set_id=moe) 2019-08-12 08:42:55 dovecot_plain authenticator failed for ([191.240.25.157]) [191.240.25.157]:56572: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 08:43:02 dovecot_plain authenticator failed for ([138.219.220.227]) [138.219.220.227]:60868: 535 Incorrect authentication data (set_id=moe) 2019-08-12 09:11:53 dovecot_plain authenticator failed for ([201.150.22.159]) [201.150.22.159]:43977: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 09:12:00 dovecot_plain authenticator failed for 168-0-224-65.dynamic.telnetdns.com.br [168.0.224.65]:36557: 535 Incorrect authentication data (set_id=moe) 2019-08-12 10:38:13 dovecot_plain authenticator failed for ([191.53.237.246]) [191.53.237.246]:40878: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 10:38:21 dovecot_plain authenticator failed for ([191.53.254.71]) [191.53.254.71]:33871: 535 Incorrect authentication data (set_id=moe) 2019-08-12 11:31:11 dovecot_plain authenticator failed for ([191.53.239.169]) [191.53.239.169]:36109: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 11:31:19 dovecot_plain authenticator failed for ([191.53.221.37]) [191.53.221.37]:45831: 535 Incorrect authentication data (set_id=moe) 2019-08-12 12:15:48 dovecot_plain authenticator failed for ([177.36.43.83]) [177.36.43.83]:41043: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 12:15:55 dovecot_plain authenticator failed for ([177.21.128.158]) [177.21.128.158]:53345: 535 Incorrect authentication data (set_id=moe) 2019-08-12 13:13:37 dovecot_plain authenticator failed for ([191.53.197.186]) [191.53.197.186]:33798: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 13:13:45 dovecot_plain authenticator failed for ([179.108.245.189]) [179.108.245.189]:53582: 535 Incorrect authentication data (set_id=moe) 2019-08-12 14:08:46 dovecot_plain authenticator failed for ([186.216.153.194]) [186.216.153.194]:46824: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 14:08:53 dovecot_plain authenticator failed for ([177.92.245.134]) [177.92.245.134]:42220: 535 Incorrect authentication data (set_id=moe) 2019-08-12 15:40:45 dovecot_plain authenticator failed for ([177.92.245.46]) [177.92.245.46]:34233: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 15:40:52 dovecot_plain authenticator failed for ([201.131.180.160]) [201.131.180.160]:38912: 535 Incorrect authentication data (set_id=moe) 2019-08-12 16:54:24 dovecot_plain authenticator failed for ([138.94.148.222]) [138.94.148.222]:59253: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 16:54:32 dovecot_plain authenticator failed for ([179.108.240.133]) [179.108.240.133]:38516: 535 Incorrect authentication data (set_id=moe) 2019-08-12 17:09:42 dovecot_plain authenticator failed for ([141.98.80.74]) [141.98.80.74]:22188: 535 Incorrect authentication data (set_id=larry@example.org) 2019-08-12 17:26:59 dovecot_plain authenticator failed for ([177.130.139.117]) [177.130.139.117]:40158: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 17:27:09 dovecot_plain authenticator failed for ([138.97.246.253]) [138.97.246.253]:46672: 535 Incorrect authentication data (set_id=moe) 2019-08-12 19:03:34 dovecot_plain authenticator failed for ([131.108.244.123]) [131.108.244.123]:54198: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 19:03:41 dovecot_plain authenticator failed for ([177.55.150.247]) [177.55.150.247]:53874: 535 Incorrect authentication data (set_id=moe) 2019-08-12 19:39:59 dovecot_plain authenticator failed for ([138.122.36.171]) [138.122.36.171]:53378: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 19:40:06 dovecot_plain authenticator failed for ([191.53.59.86]) [191.53.59.86]:54942: 535 Incorrect authentication data (set_id=moe) 2019-08-12 20:06:56 dovecot_plain authenticator failed for ([141.98.80.74]) [141.98.80.74]:59522: 535 Incorrect authentication data (set_id=larry@example.org) 2019-08-12 20:09:31 dovecot_plain authenticator failed for ([191.53.254.166]) [191.53.254.166]:43655: 535 Incorrect authentication data (set_id=moe@example.org) 2019-08-12 20:09:39 dovecot_plain authenticator failed for ([177.154.235.208]) [177.154.235.208]:44693: 535 Incorrect authentication data (set_id=moe)
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  • cPanelLauren
    Hello, The blocks from cphulkd do indeed look like duplicates, though the output from the maillog does not look to be related. Is anything noted in the cPhulkd related logs at /usr/local/cpanel/logs/
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  • summitscout
    Thanks, Lauren! cphulkd.log shows entries are doubled as well. Quadrupled even since each entry is listed for each of two violations, then both doubled. See example set: [2019-08-12 15:40:43 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[177.92.245.46] [Authentication Database]=[mail] [Username]=[moe@example.org] (1/3 failures) (blocked until [Tue Aug 13 22:40:43 2019 UTC/Tue Aug 13 15:40:43 2019 LOCAL]) [2019-08-12 15:40:43 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[177.92.245.46] [Authentication Database]=[mail] [Username]=[moe@example.org] [2019-08-12 15:40:43 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[177.92.245.46] [Authentication Database]=[mail] [Username]=[moe@example.org] (1/3 failures) (blocked until [Tue Aug 13 22:40:43 2019 UTC/Tue Aug 13 15:40:43 2019 LOCAL]) [2019-08-12 15:40:43 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[177.92.245.46] [Authentication Database]=[mail] [Username]=[moe@example.org] [2019-08-12 15:40:50 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[201.131.180.160] [Authentication Database]=[mail] [Username]=[moe] (1/3 failures) (blocked until [Tue Aug 13 22:40:50 2019 UTC/Tue Aug 13 15:40:50 2019 LOCAL]) [2019-08-12 15:40:50 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[201.131.180.160] [Authentication Database]=[mail] [Username]=[moe] [2019-08-12 15:40:50 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[201.131.180.160] [Authentication Database]=[mail] [Username]=[moe] (1/3 failures) (blocked until [Tue Aug 13 22:40:50 2019 UTC/Tue Aug 13 15:40:50 2019 LOCAL]) [2019-08-12 15:40:50 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[201.131.180.160] [Authentication Database]=[mail] [Username]=[moe] [2019-08-12 16:10:51 -0700] info [cPhulkd] DB processor shutdown via SIGTERM with pid 31487 [2019-08-12 16:10:51 -0700] info [cPhulkd] processor startup with pid 31096 [2019-08-12 16:10:51 -0700] info [cPhulkd] DB processor startup with pid 19654 [2019-08-12 16:54:22 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[138.94.148.222] [Authentication Database]=[mail] [Username]=[moe@example.org] (1/3 failures) (blocked until [Tue Aug 13 23:54:22 2019 UTC/Tue Aug 13 16:54:22 2019 LOCAL]) [2019-08-12 16:54:22 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[138.94.148.222] [Authentication Database]=[mail] [Username]=[moe@example.org] [2019-08-12 16:54:22 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[138.94.148.222] [Authentication Database]=[mail] [Username]=[moe@example.org] (1/3 failures) (blocked until [Tue Aug 13 23:54:22 2019 UTC/Tue Aug 13 16:54:22 2019 LOCAL]) [2019-08-12 16:54:22 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[138.94.148.222] [Authentication Database]=[mail] [Username]=[moe@example.org] [2019-08-12 16:54:30 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[179.108.240.133] [Authentication Database]=[mail] [Username]=[moe] (1/3 failures) (blocked until [Tue Aug 13 23:54:30 2019 UTC/Tue Aug 13 16:54:30 2019 LOCAL]) [2019-08-12 16:54:30 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[179.108.240.133] [Authentication Database]=[mail] [Username]=[moe] [2019-08-12 16:54:30 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[179.108.240.133] [Authentication Database]=[mail] [Username]=[moe] (1/3 failures) (blocked until [Tue Aug 13 23:54:30 2019 UTC/Tue Aug 13 16:54:30 2019 LOCAL]) [2019-08-12 16:54:30 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[179.108.240.133] [Authentication Database]=[mail] [Username]=[moe] [2019-08-12 17:09:40 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[141.98.80.74] [Authentication Database]=[mail] [Username]=[larry@example.org] (1/3 failures) (blocked until [Wed Aug 14 00:09:40 2019 UTC/Tue Aug 13 17:09:40 2019 LOCAL]) [2019-08-12 17:09:40 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[141.98.80.74] [Authentication Database]=[mail] [Username]=[larry@example.org] [2019-08-12 17:09:40 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[141.98.80.74] [Authentication Database]=[mail] [Username]=[larry@example.org] (1/3 failures) (blocked until [Wed Aug 14 00:09:40 2019 UTC/Tue Aug 13 17:09:40 2019 LOCAL]) [2019-08-12 17:09:40 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[141.98.80.74] [Authentication Database]=[mail] [Username]=[larry@example.org] [2019-08-12 17:26:57 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[177.130.139.117] [Authentication Database]=[mail] [Username]=[moe@example.org] (1/3 failures) (blocked until [Wed Aug 14 00:26:57 2019 UTC/Tue Aug 13 17:26:57 2019 LOCAL]) [2019-08-12 17:26:57 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[177.130.139.117] [Authentication Database]=[mail] [Username]=[moe@example.org] [2019-08-12 17:26:57 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[177.130.139.117] [Authentication Database]=[mail] [Username]=[moe@example.org] (1/3 failures) (blocked until [Wed Aug 14 00:26:57 2019 UTC/Tue Aug 13 17:26:57 2019 LOCAL]) [2019-08-12 17:26:57 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[177.130.139.117] [Authentication Database]=[mail] [Username]=[moe@example.org] [2019-08-12 17:27:07 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[138.97.246.253] [Authentication Database]=[mail] [Username]=[moe] (1/3 failures) (blocked until [Wed Aug 14 00:27:07 2019 UTC/Tue Aug 13 17:27:07 2019 LOCAL]) [2019-08-12 17:27:07 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[138.97.246.253] [Authentication Database]=[mail] [Username]=[moe] [2019-08-12 17:27:07 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[138.97.246.253] [Authentication Database]=[mail] [Username]=[moe] (1/3 failures) (blocked until [Wed Aug 14 00:27:07 2019 UTC/Tue Aug 13 17:27:07 2019 LOCAL]) [2019-08-12 17:27:07 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[138.97.246.253] [Authentication Database]=[mail] [Username]=[moe] [2019-08-12 19:03:32 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[131.108.244.123] [Authentication Database]=[mail] [Username]=[moe@example.org] (1/3 failures) (blocked until [Wed Aug 14 02:03:32 2019 UTC/Tue Aug 13 19:03:32 2019 LOCAL]) [2019-08-12 19:03:32 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[131.108.244.123] [Authentication Database]=[mail] [Username]=[moe@example.org] [2019-08-12 19:03:32 -0700] info [cPhulkd] Login Blocked: IP reached maximum auth failures for a one day block [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[131.108.244.123] [Authentication Database]=[mail] [Username]=[moe@example.org] (1/3 failures) (blocked until [Wed Aug 14 02:03:32 2019 UTC/Tue Aug 13 19:03:32 2019 LOCAL]) [2019-08-12 19:03:32 -0700] info [cPhulkd] Login Blocked: The country is blacklisted. [Service]=[dovecot] [Local IP Address]=[#.#.#.#] [Remote IP Address]=[131.108.244.123] [Authentication Database]=[mail] [Username]=[moe@example.org]
    Is this normal or abnormal? Nearly the entire log looks this way " except for three early entries. That is possibly before I blacklisted a few countries. I don't recall when I enabled that. Is there a config record somewhere?
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  • cPanelLauren
    Hi @summitscout This is definitely abnormal - country blocks shouldn't cause duplicates like this. Can you show me the output of the following: ps faux |egrep 'cPhulk|queueprocd|tailwatch'
    What do you mean by config record?
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  • summitscout
    Output: [CODE=bash]root@server [~]# ps faux |egrep 'cPhulk|queueprocd|tailwatch' root 1744 0.0 0.2 45160 8816 ? S Aug01 0:40 queueprocd - waiting up to 60s to process a task root 20867 0.0 0.0 112712 952 pts/0 S+ 13:46 0:00 \_ grep -E --color=auto cPhulk|queueprocd|tailwatch root 31096 0.0 0.2 151464 11024 ? S Aug07 0:36 cPhulkd - processor root 21047 0.0 0.2 151004 10292 ? S 06:43 0:00 \_ cPhulkd - dbprocessor root 6740 0.0 0.4 68844 17488 ? S Aug13 0:23 tailwatchd
    By config record, I am wondering if the config file reflects datetime it was changed " i.e. when I added the country blocks.
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  • cPanelLauren
    Hi @summitscout Thanks for providing that, the output appears normal. At this point I'd suggest you open a ticket, you can do so using the link in my signature. Once open please provide the ticket ID here so that we can update this thread with the outcome. Thanks!
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  • summitscout
    Your Support Request ID is: 13138933
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  • cPanelLauren
    Hi @summitscout Thank you for that, I just checked in on the ticket and found that the analysts were unable to actively reproduce the issue and blocks were not being logged in duplicate at this time. If you do find that the behavior begins to present itself once more, before making any changes I'd suggest responding to the ticket.
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