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AbuseIPDB » 20.171.9.44

20.171.9.44 was found in our database!

This IP was reported 17 times. Confidence of Abuse is 71%: ?

71%

ISP	Microsoft Corporation
Usage Type	Data Center/Web Hosting/Transit
ASN	AS8075
Domain Name	microsoft.com
Country	🇺🇸 United States of America
City	Phoenix, Arizona

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

Report 20.171.9.44

Whois 20.171.9.44

IP Abuse Reports for 20.171.9.44:

This IP address has been reported a total of 17 times from 13 distinct sources. 20.171.9.44 was first reported on August 20th 2026, and the most recent report was 1 day ago.

Recent Reports: We have received reports of abusive activity from this IP address within the last week. It is potentially still actively engaged in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
Anonymous	2026-08-23 04:30:42 (1 day ago)	Failed login attempt detected by Fail2Ban in plesk-postfix jail	Brute-Force
🇧🇷 govfacil.app	2026-08-21 16:36:47 (2 days ago)	(smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-): 5 in the last 3600 secs; Po ... show more (smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-08-21 13:28:42 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:50310: 535 Incorrect authentication data ([email protected]) 2026-08-21 13:30:44 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:38418: 535 Incorrect authentication data ([email protected]) 2026-08-21 13:32:45 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:33408: 535 Incorrect authentication data ([email protected]) 2026-08-21 13:34:45 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:35308: 535 Incorrect authentication data ([email protected]) 2026-08-21 13:36:46 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:34646: 535 Incorrect authentication data ([email protected]) show less	Brute-Force
🇫🇷 kisiek	2026-08-21 16:36:05 (2 days ago)	(smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-): 5 in the last 3600 secs; Po ... show more (smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-08-21 18:27:57 login authenticator failed for H=(ADMIN) [20.171.9.44]: 535 Incorrect authentication data ([email protected]) 2026-08-21 18:30:04 login authenticator failed for H=(ADMIN) [20.171.9.44]: 535 Incorrect authentication data ([email protected]) 2026-08-21 18:32:05 login authenticator failed for H=(ADMIN) [20.171.9.44]: 535 Incorrect authentication data ([email protected]) 2026-08-21 18:34:05 login authenticator failed for H=(ADMIN) [20.171.9.44]: 535 Incorrect authentication data ([email protected]) 2026-08-21 18:36:03 login authenticator failed for H=(ADMIN) [20.171.9.44]: 535 Incorrect authentication data ([email protected]) show less	Port Scan
🇧🇷 SvrAdmin	2026-08-21 16:29:13 (2 days ago)	[315] (smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-): 5 in the last 3600 se ... show more [315] (smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: Aug 21 12:45:28 cwp01 postfix/smtpd[28750]: warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 21 12:57:55 cwp01 postfix/smtpd[30068]: warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 21 13:26:49 cwp01 postfix/smtpd[1939]: warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 21 13:28:39 cwp01 postfix/smtpd[2055]: warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 21 13:29:10 cwp01 postfix/smtpd[2055]: warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 show less	Port Scan Hacking Brute-Force Exploited Host
🇨🇦 Mediashaker	2026-08-21 15:24:21 (2 days ago)	(smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-)	Brute-Force
Anonymous	2026-08-21 04:30:15 (3 days ago)	Failed login attempt detected by Fail2Ban in plesk-postfix jail	Brute-Force
🇨🇿 lp	2026-08-21 03:20:34 (3 days ago)	Email account brute force: 20 attempts were recorded from 20.171.9.44 2026-08-21T03:52:57+02:00 warn ... show more Email account brute force: 20 attempts were recorded from 20.171.9.44 2026-08-21T03:52:57+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-21T03:55:40+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-21T03:58:21+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-21T04:01:05+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-21T04:03:47+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-21T04:14:34+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, show less	Brute-Force
🇩🇪 marcelhalls	2026-08-21 03:00:06 (3 days ago)	Repeated attacks detected by Fail2Ban in recidive jail	Hacking
🇧🇷 dominioz	2026-08-20 22:59:21 (3 days ago)	20.171.9.44 [2880] 19:56:55 Authentication [SMTP] - Result=0, User=andrefreitas@burityempresaria ... show more 20.171.9.44 [2880] 19:56:55 Authentication [SMTP] - Result=0, [email protected], Method=0 20.171.9.44 [2880] 19:59:17 Authentication [SMTP] - Result=0, [email protected], Method=0 ... show less	Brute-Force
🇺🇸 integrantservices.com	2026-08-20 22:50:46 (3 days ago)	(PERMBLOCK) 20.171.9.44 (US/United States/-) has had more than 4 temp blocks	Hacking
🇨🇿 lp	2026-08-20 21:20:21 (3 days ago)	Email account brute force: 6 attempts were recorded from 20.171.9.44 2026-08-20T22:14:34+02:00 warni ... show more Email account brute force: 6 attempts were recorded from 20.171.9.44 2026-08-20T22:14:34+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-20T22:51:03+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-20T22:53:36+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-20T22:56:10+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-20T22:58:45+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, [email protected] 2026-08-20T23:01:22+02:00 warning: unknown[20.171.9.44]: SASL LOGIN authentication failed: authentication failure, s show less	Brute-Force
🇺🇸 integrantservices.com	2026-08-20 20:57:36 (3 days ago)	(smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-)	Brute-Force
🇧🇷 dominioz	2026-08-20 20:55:03 (3 days ago)	20.171.9.44 [3E74] 17:35:39 Authentication [SMTP] - Result=0, User=andrefreitas@burityempresaria ... show more 20.171.9.44 [3E74] 17:35:39 Authentication [SMTP] - Result=0, [email protected], Method=0 20.171.9.44 [3E74] 17:52:43 Authentication [SMTP] - Result=0, [email protected], Method=0 20.171.9.44 [3E74] 17:54:59 Authentication [SMTP] - Result=0, [email protected], Method=0 ... show less	Brute-Force
🇺🇸 hostmach	2026-08-20 20:52:50 (3 days ago)	(smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-): 5 in the last 3600 secs; Po ... show more (smtpauth) Failed SMTP AUTH login from 20.171.9.44 (US/United States/-): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: 2026-08-20 20:47:03 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:56062: 535 Incorrect authentication data ([email protected]) 2026-08-20 20:50:37 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:60316: 535 Incorrect authentication data ([email protected]) 2026-08-20 20:51:23 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:33864: 535 Incorrect authentication data ([email protected]) 2026-08-20 20:51:49 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:53466: 535 Incorrect authentication data ([email protected]) 2026-08-20 20:52:47 dovecot_login authenticator failed for H=(ADMIN) [20.171.9.44]:39554: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
Anonymous	2026-08-20 20:00:05 (3 days ago)	BruteForce IMAP/POP3/SMTP	Brute-Force

Showing 1 to 15 of 17 reports

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