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AbuseIPDB » 103.31.158.18

103.31.158.18 was found in our database!

This IP was reported 50 times. Confidence of Abuse is 100%: ?

100%

ISP	PT Cyber Network Indonesia
Usage Type	Data Center/Web Hosting/Transit
ASN	AS38496
Hostname(s)	18.158.31.103.cni.net.id
Domain Name	cni.net.id
Country	🇮🇩 Indonesia
City	Jakarta, Jakarta

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

Report 103.31.158.18

Whois 103.31.158.18

IP Abuse Reports for 103.31.158.18:

This IP address has been reported a total of 50 times from 37 distinct sources. 103.31.158.18 was first reported on August 27th 2026, and the most recent report was 2 hours 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
🇩🇪 FeG Deutschland	2026-09-02 04:34:01 (2 hours ago)	Mail: - login with unknown user - bruteforce	Brute-Force
Anonymous	2026-09-02 03:52:42 (2 hours ago)	Authentication failure	Brute-Force
Anonymous	2026-09-02 02:38:13 (4 hours ago)	Blocked by firewall on hugin [465/tcp] \| Rule: AbuseIPDB \| SPT: 65420 \| TTL: 59 \| LEN: 64 \| TOS: 0x0 ... show more Blocked by firewall on hugin [465/tcp] \| Rule: AbuseIPDB \| SPT: 65420 \| TTL: 59 \| LEN: 64 \| TOS: 0x00 • Reported by: github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan Email Spam
🇺🇸 shaunc	2026-09-01 23:39:16 (7 hours ago)	Sep 1 18:39:12 mailman postfix/smtpd[31647]: warning: unknown[103.31.158.18]: SASL LOGIN authentica ... show more Sep 1 18:39:12 mailman postfix/smtpd[31647]: warning: unknown[103.31.158.18]: SASL LOGIN authentication failed: authentication failure show less	Brute-Force
🇩🇪 Paul Smith	2026-09-01 23:38:29 (7 hours ago)	Email Auth Brute force attack 2/2 in last day	Brute-Force
🇹🇭 thaizone.com	2026-09-01 18:56:27 (11 hours ago)	Password guessing attack (SM11) #1	Email Spam Brute-Force
🇩🇪 Sparxx	2026-09-01 14:49:24 (15 hours ago)	2026-09-01T16:49:23.300915+02:00 srv postfix/submissions/smtpd[2454840]: warning: unknown[103.31.158 ... show more 2026-09-01T16:49:23.300915+02:00 srv postfix/submissions/smtpd[2454840]: warning: unknown[103.31.158.18]: SASL LOGIN authentication failed: (reason unavailable), [email protected] 2026-09-01T16:49:24.328935+02:00 srv postfix/submissions/smtpd[2454840]: lost connection after AUTH from unknown[103.31.158.18] 2026-09-01T16:49:24.329064+02:00 srv postfix/submissions/smtpd[2454840]: disconnect from unknown[103.31.158.18] ehlo=1 auth=0/1 commands=1/2 ... show less	Brute-Force
🇫🇮 notelseit	2026-09-01 13:26:49 (17 hours ago)	2026-09-01T15:24:41.347628+02:00 mail postfix/smtps/smtpd[3105095]: warning: unknown[103.31.158.18]: ... show more 2026-09-01T15:24:41.347628+02:00 mail postfix/smtps/smtpd[3105095]: warning: unknown[103.31.158.18]: SASL LOGIN authentication failed: (reason unavailable), [email protected] 2026-09-01T15:24:42.335174+02:00 mail postfix/smtps/smtpd[3105095]: disconnect from unknown[103.31.158.18] ehlo=1 auth=0/1 commands=1/2 2026-09-01T15:26:48.468610+02:00 mail postfix/smtps/smtpd[3104178]: warning: unknown[103.31.158.18]: SASL LOGIN authentication failed: (reason unavailable), [email protected] ... show less	Brute-Force Email Spam
🇩🇪 lister171254	2026-09-01 13:08:56 (17 hours ago)	2026-09-01T15:08:56.124156+02:00 thelists postfix/submission/smtpd[893455]: warning: unknown[103.31. ... show more 2026-09-01T15:08:56.124156+02:00 thelists postfix/submission/smtpd[893455]: warning: unknown[103.31.158.18]: SASL LOGIN authentication failed: (reason unavailable), [email protected] ... show less	Hacking
Anonymous	2026-09-01 11:40:40 (19 hours ago)	2026-09-01T13:40:38.810537 biopolis.pcconsultant.it postfix/smtpd[3242094]: warning: unknown[103.31. ... show more 2026-09-01T13:40:38.810537 biopolis.pcconsultant.it postfix/smtpd[3242094]: warning: unknown[103.31.158.18]: SASL LOGIN authentication failed: authentication failure, sasl_username=stefano ... show less	Brute-Force
🇹🇭 thaizone.com	2026-09-01 11:39:08 (19 hours ago)	Password guessing attack (SM11) #3	Email Spam Brute-Force
🇩🇪 digico_mt	2026-09-01 11:24:38 (19 hours ago)	Sep 1 13:24:38 digico postfix/submission/smtpd[389482]: warning: unknown[103.31.158.18]: SASL LOGIN ... show more Sep 1 13:24:38 digico postfix/submission/smtpd[389482]: warning: unknown[103.31.158.18]: SASL LOGIN authentication failed: (reason unavailable), [email protected] Sep 1 13:24:38 digico postfix/submission/smtpd[389482]: lost connection after AUTH from unknown[103.31.158.18] Sep 1 13:24:38 digico postfix/submission/smtpd[389482]: disconnect from unknown[103.31.158.18] ehlo=2 starttls=1 auth=0/1 commands=3/4 ... show less	Port Scan
🇩🇪 lister171254	2026-09-01 08:46:09 (22 hours ago)	2026-09-01T10:46:09.091498+02:00 thelists postfix/submission/smtpd[655950]: warning: unknown[103.31. ... show more 2026-09-01T10:46:09.091498+02:00 thelists postfix/submission/smtpd[655950]: warning: unknown[103.31.158.18]: SASL LOGIN authentication failed: (reason unavailable), [email protected] ... show less	Hacking
🇫🇷 basing	2026-09-01 07:31:50 (23 hours ago)	2026-09-01 08:31:50 pzb SASL PLAIN auth failed: rhost=103.31.158.18...	Brute-Force
🇿🇦 maximonline.co.za	2026-09-01 01:20:11 (1 day ago)	Brute Force SMTP AUTH Attack	Brute-Force

Showing 1 to 15 of 50 reports

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