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45.58.158.5

Activity Trending Down

Abuse confidence score ?

19% Caution

12 reports

6 reporters · latest 1 month ago

ISP	Sharktech Inc.
Usage Type	Data Center/Web Hosting/Transit
ASN	AS46844
Hostname(s)	customer.sharktech.net
Domain Name	sharktech.net
Country	🇳🇱 Netherlands
City	Amsterdam, North Holland

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IP Abuse Reports for 45.58.158.5

This IP address has been reported a total of 12 times from 6 distinct sources. 45.58.158.5 was first reported on August 2nd 2026, and the most recent report was 1 month ago. In the last 60 days, the top reporter locations were: Brazil with 7 reports; United States of America with 4 reports; Italy with 1 report. The most common categories in these recent reports were: Brute-Force 10 times; SSH 4 times; Hacking 3 times; Exploited Host 3 times; Port Scan 3 times; Other 4 times.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇧🇷 SvrAdmin	2026-08-18 21:16:26 (1 month ago)	[315] (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net) ... show more [315] (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: Aug 18 18:11:10 cwp01 postfix/smtpd[2358]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 18 18:15:40 cwp01 postfix/smtpd[3136]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 18 18:15:57 cwp01 postfix/smtpd[3136]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 18 18:16:15 cwp01 postfix/smtpd[3136]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 18 18:16:22 cwp01 postfix/smtpd[3136]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 show less	Port Scan Hacking Brute-Force Exploited Host
🇧🇷 SvrAdmin	2026-08-15 00:01:42 (1 month ago)	[293] (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net) ... show more [293] (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: Aug 14 20:57:24 cwp01 postfix/smtpd[25829]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 14 20:58:33 cwp01 postfix/smtpd[25829]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 14 20:59:35 cwp01 postfix/smtpd[25829]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 14 21:00:36 cwp01 postfix/smtpd[25829]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 14 21:01:39 cwp01 postfix/smtpd[25829]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 show less	Port Scan Hacking Brute-Force Exploited Host
🇧🇷 Caue Henrique	2026-08-10 13:00:37 (1 month ago)	Multiplewebserver500errorcode	Web Spam Web App Attack
🇧🇷 Caue Henrique	2026-08-10 13:00:37 (1 month ago)	Multiplewebserver500errorcode	Web Spam Web App Attack
🇧🇷 SvrAdmin	2026-08-10 12:57:47 (1 month ago)	[254] (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net) ... show more [254] (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SMTPAUTH; Logs: Aug 10 09:46:05 painel postfix/smtpd[1522]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 10 09:54:51 painel postfix/smtpd[18230]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 10 09:55:47 painel postfix/smtpd[18230]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 10 09:56:44 painel postfix/smtpd[18230]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Aug 10 09:57:43 painel postfix/smtpd[18230]: warning: unknown[45.58.158.5]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 show less	Port Scan Hacking Brute-Force Exploited Host
🇺🇸 bigscoots.com	2026-08-06 15:29:49 (1 month ago)	(smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in ... show more (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-08-06 11:05:00 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:55954: 535 Incorrect authentication data ([email protected]) 2026-08-06 11:10:34 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:38640: 535 Incorrect authentication data ([email protected]) 2026-08-06 11:22:03 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:38954: 535 Incorrect authentication data ([email protected]) 2026-08-06 11:29:33 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:43154: 535 Incorrect authentication data ([email protected]) 2026-08-06 11:29:48 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:46960: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-08-06 14:45:56 (1 month ago)	(smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in ... show more (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-08-06 10:21:55 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:36688: 535 Incorrect authentication data ([email protected]) 2026-08-06 10:26:57 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:44134: 535 Incorrect authentication data ([email protected]) 2026-08-06 10:37:35 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:41114: 535 Incorrect authentication data ([email protected]) 2026-08-06 10:45:21 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:47974: 535 Incorrect authentication data ([email protected]) 2026-08-06 10:45:55 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:55278: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-08-05 04:34:23 (1 month ago)	(smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in ... show more (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-08-05 00:30:01 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:48002: 535 Incorrect authentication data ([email protected]) 2026-08-05 00:31:06 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:42808: 535 Incorrect authentication data ([email protected]) 2026-08-05 00:32:11 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:37614: 535 Incorrect authentication data ([email protected]) 2026-08-05 00:33:15 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:60642: 535 Incorrect authentication data ([email protected]) 2026-08-05 00:34:21 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:55448: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇮🇹 VHosting	2026-08-05 04:20:03 (1 month ago)	Detected mail brute force attack from 4 different servers	Brute-Force
🇺🇸 bigscoots.com	2026-08-05 04:17:16 (1 month ago)	(smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in ... show more (smtpauth) Failed SMTP AUTH login from 45.58.158.5 (NL/The Netherlands/customer.sharktech.net): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-08-05 00:10:42 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:47446: 535 Incorrect authentication data ([email protected]) 2026-08-05 00:14:06 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:50138: 535 Incorrect authentication data ([email protected]) 2026-08-05 00:15:22 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:57304: 535 Incorrect authentication data ([email protected]) 2026-08-05 00:16:18 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:40438: 535 Incorrect authentication data ([email protected]) 2026-08-05 00:17:13 dovecot_login authenticator failed for H=(ADMIN) [45.58.158.5]:50542: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇧🇷 KingHost	2026-08-02 16:41:18 (1 month ago)		Brute-Force
Anonymous	2026-08-02 16:39:02 (1 month ago)	BruteForce IMAP/POP3/SMTP	Brute-Force

Showing 1 to 12 of 12 reports

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