51.77.59.79
Classification: Malicious
51.77.59.79 is a malicious IP address. Reported by 7 threat sources, last seen 2026-08-20. Network: AS16276 OVH SAS.
Current activity
- Known attacker — Seen launching attacks over the Internet.
- Open proxy — Provides anonymization that can hide an attacker.
Blacklist sightings
| Description | Source | First seen | Last seen | Labels | MITRE ATT&CK |
|---|---|---|---|---|---|
| Proxy | IPWhois.io | 2025-03-03 14:34:54 | 2026-08-20 19:47:35 | anonymization proxy | |
| Mail Spammer | Barracuda | 2025-03-03 14:34:54 | 2026-08-20 19:47:35 | attacker malicious-activity | |
| Proxy | FireHOL | 2022-12-31 22:41:29 | 2025-10-07 06:39:20 | anonymization | |
| Anonymizer | FireHol | 2022-12-29 11:18:43 | 2022-12-29 22:38:53 | anonymization | |
| Anonymizer | Maltiverse Research Team | 2020-11-21 16:20:35 | 2021-05-22 22:59:06 | anonymizer | |
| Mail Spammer | Blocklist.de | 2019-09-19 00:41:23 | 2019-09-21 07:05:48 | ||
| IMAP Attacker | Blocklist.de | 2019-09-19 00:38:36 | 2019-09-19 00:38:36 | ||
| Anonymizer | Maltiverse | 2019-09-03 02:19:29 | 2019-09-03 02:19:29 |
Tags
anonymization anonymizer attacker imap pop3 sasl bot mail spamWhois information
- AS name
- AS16276 OVH SAS
- AS registry
- ripencc
- AS date
- 1993-09-01 00:00:00
- AS CIDR
- 51.77.0.0/16
- Registrant
- OVH SAS
- City
- Warsaw
- Postal code
- 00-693
- Country
- PL — Poland 🇵🇱
- First indexed
- 2019-09-03 02:19:29
- Last updated
- 2026-08-20 19:47:36
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