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AbuseIPDB » 52.81.121.52

52.81.121.52 was found in our database!

This IP was reported 114 times. Confidence of Abuse is 20%: ?

20%

ISP	Beijing Sinnet Technology Co., Ltd.
Usage Type	Data Center/Web Hosting/Transit
ASN	AS55960
Hostname(s)	ec2-52-81-121-52.cn-north-1.compute.amazonaws.com.cn
Domain Name	sinnet.com.cn
Country	🇨🇳 China
City	Beijing, Beijing

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

Report 52.81.121.52

Whois 52.81.121.52

IP Abuse Reports for 52.81.121.52:

This IP address has been reported a total of 114 times from 10 distinct sources. 52.81.121.52 was first reported on September 9th 2021, and the most recent report was 5 days 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
🇮🇩 David Koswari	2026-08-21 05:22:00 (5 days ago)	REQ_BLOCKED_ACL	DDoS Attack FTP Brute-Force Ping of Death Port Scan Hacking SQL Injection Spoofing Brute-Force Bad Web Bot Exploited Host Web App Attack SSH IoT Targeted
🇸🇪 SkyDancer	2026-08-04 08:09:00 (3 weeks ago)	Multiple unauthorized attempts to access using wrong credentials. Attack automatically blocked by Sk ... show more Multiple unauthorized attempts to access using wrong credentials. Attack automatically blocked by SkyDancer Ai. EXT-SYS-Vx show less	Hacking Brute-Force SSH
Anonymous	2026-07-28 07:29:48 (4 weeks ago)	Botnet-generated fake user-agent with impossible version. UA="Mozilla/5.0 (Linux; Android 8.0; Pixel ... show more Botnet-generated fake user-agent with impossible version. UA="Mozilla/5.0 (Linux; Android 8.0; Pixel 2 Build/OPD3.170816.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.7067.1089 Mob" show less	Bad Web Bot
🇵🇱 sefinek.net	2026-07-04 21:28:59 (1 month ago)	Triggered Cloudflare WAF (firewallCustom) from CN. Action: BLOCK \| Protocol: HTTP/2 (GET) \| Endpoint ... show more Triggered Cloudflare WAF (firewallCustom) from CN. Action: BLOCK \| Protocol: HTTP/2 (GET) \| Endpoint: / \| UA: Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.3476.1512 Mobile Safari/537.36 • Generated by: github.com/sefinek/Cloudflare-WAF-To-AbuseIPDB show less	Bad Web Bot
🇫🇷 bigorre.org	2026-06-05 10:09:49 (2 months ago)	Unidentified crawling: not a self-announced bot in user-agent	Bad Web Bot
🇺🇸 TPI-Abuse	2026-05-28 15:36:24 (2 months ago)	(mod_security) mod_security (id:210730) triggered by 52.81.121.52 (ec2-52-81-121-52.cn-north-1.compu ... show more (mod_security) mod_security (id:210730) triggered by 52.81.121.52 (ec2-52-81-121-52.cn-north-1.compute.amazonaws.com.cn): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Thu May 28 11:36:20.678903 2026] [security2:error] [pid 3026:tid 3026] [client 52.81.121.52:36578] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|www.civilwarzone.com\|F\|2"] [data ".dll"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "www.civilwarzone.com"] [uri "/~site/Scripts_ExternalRedirect/ExternalRedirect.dll"] [unique_id "ahhg9NXdVN0t7FUbSr6lXAAAAAA"], referer: https://www.civilwarzone.com/TheMinstrelBoy.html show less	Brute-Force Bad Web Bot Web App Attack
🇨🇳 ThreatBook.io	2026-01-15 01:14:21 (7 months ago)	ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2026-01-14 ... show more ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2026-01-14 09:45:51 /cc.gif show less	Web App Attack
🇨🇳 ThreatBook.io	2025-12-31 00:31:39 (7 months ago)	ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-12-30 ... show more ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-12-30 19:43:09 /dfdfd show less	Web App Attack
🇨🇳 ThreatBook.io	2025-12-29 00:09:19 (7 months ago)	ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-12-28 ... show more ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-12-28 04:43:09 /dfdfd show less	Web App Attack
🇨🇳 ThreatBook.io	2025-12-28 00:13:27 (7 months ago)	ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-12-27 ... show more ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-12-27 23:43:11 /dfdfd show less	Web App Attack
🇨🇳 ThreatBook.io	2025-12-27 00:24:51 (7 months ago)	ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-12-26 ... show more ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-12-26 15:27:37 /cc.gif show less	Web App Attack
🇨🇳 ThreatBook.io	2025-11-20 23:40:08 (9 months ago)	ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-11-20 ... show more ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-11-20 01:43:13 /dfdfd show less	Web App Attack
🇨🇳 ThreatBook.io	2025-11-06 00:18:35 (9 months ago)	ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-11-05 ... show more ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-11-05 15:57:21 /cc.gif show less	Web App Attack
🇨🇳 ThreatBook.io	2025-11-05 00:23:40 (9 months ago)	ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-11-04 ... show more ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-11-04 05:16:55 /cc.gif show less	Web App Attack
🇨🇳 ThreatBook.io	2025-10-24 23:48:52 (10 months ago)	ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-10-24 ... show more ThreatBook Intelligence: Zombie,IDC more details on https://threatbook.io/ip/52.81.121.52 2025-10-24 00:49:54 /cc.gif 2025-10-24 10:59:35 /cc.gif show less	Web App Attack

Showing 1 to 15 of 114 reports

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