Is IP address 77.91.65.52 dangerous?

Yes, 77.91.65.52 is considered dangerous with a threat level of 7/10. It has been reported 6 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 77.91.65.52?

IP address 77.91.65.52 is operated by AO ALMAZ (ASN 210328) and is geolocated to RU. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 77.91.65.52?

Yes, blocking 77.91.65.52 is strongly recommended. With a threat level of 7/10 and 6 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 77.91.65.52?

Our threat assessment for 77.91.65.52 has a confidence score of 40%, based on 6 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

77.91.65.52

IPv4 Public

AS210328

AO ALMAZ

6 Reports

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Russia Location

AO ALMAZ ASN 210328

6 Reports

Community Data Source

Elevated Risk

Elevated threat level 7/10 for IP 77.91.65.52 from 6 reported incidents.

Behavioral profile indicates cyber threat activity with 40% confidence.

More threatening than 84% of monitored IPs

Threat Categories

FTP Brute-Force 6

Brute-Force 6

Technical Details

FTP brute-force attacks systematically attempt to guess FTP credentials to gain unauthorized file access.

Recommended Mitigations

Disable FTP in favor of SFTP, implement fail2ban, and enforce strong password policies.

Behavioral Analysis

Activity Pattern: Consistent Activity

Steady malicious activity over 1 days indicates persistent threat actor operations.

First Observed 12. October 2026

Last Activity 13. October 2026

Recent (7 days) 6 incidents

Reputable Network

This IP is hosted on a network (ASN 210328) with generally good reputation. The ISP AO ALMAZ maintains standard security practices.

The malicious activity may represent an isolated compromised system rather than systematic abuse.

Security Recommendations

Enhanced monitoring recommended. Review logs for interactions with this IP.

Long-term blocking recommended.

Reputation Summary

Threat Level 7/10 High

High

Activity Frequency 8/10 High

Confidence Score 39% Medium Confidence

Confidence History

12. Oct 2026 - 13. Oct 2026

40% Current

Stable Trend

Date	Categories	Source	Confidence
13. Oct 2026 New	FTP Brute-Force Brute-Force	Community	75%
13. Oct 2026 New	FTP Brute-Force Brute-Force	Community x3	75%
13. Oct 2026 New	FTP Brute-Force Brute-Force	Community x3	75%
12. Oct 2026	FTP Brute-Force Brute-Force	Community x2	75%
12. Oct 2026	FTP Brute-Force Brute-Force	Community x2	75%
12. Oct 2026	FTP Brute-Force Brute-Force	Community x3	75%

Basic Information

IP Address: 77.91.65.52
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class A

Geolocation

Country: RU
ASN: AS210328
ISP: AO ALMAZ

DNS Information

Reverse DNS: None
PTR Record: No
Connection Type: Static

Statistics

Total Reports: 6
First Reported: 12 Oct 2026
Last Reported: 13 Oct 2026, 17:11

Comparative Analysis

How this IP compares to others in our threat intelligence database

84 %

Global Threat Ranking

This IP is more threatening than 84% of all IPs in our database.

High Threat Percentile

Global Comparison

Compared against 863,323 reported IPs worldwide

Threat Level 7/10 avg: 6.3 =

Total Reports 6 avg: 9 -

Network Comparison

Compared against 152 IPs in ASN 210328

Threat Level 7/10 network avg: 6.9 =

Total Reports 6 network avg: 4 ++

Geographic Comparison

Compared against 14,484 IPs in RU

Threat Level 7/10 country avg: 6.5 =

Total Reports 6 country avg: 9 -

Daily report activity over the last 30 days showing patterns and peaks.

Peak Day 12 Oct 2026 3 reports

Daily Average 0.2 reports/day

Most Active Monday 3 reports

Evolution of threat level over time based on reported categories and frequency.

Initial Threat 6/10

Current Threat 6/10

Distribution of threat categories reported over time.

Top Threat Categories

FTP Brute-Force 6

Brute-Force 6

Activity patterns showing when this IP is most active during the day and week.

Hourly Activity

Peak activity at 15:00 with 3 reports

Weekly Activity

Geographic Threat Distribution

784,713 threat incidents tracked globally • Last 24h: 36,883 Logs

FEED

Top Threat Sources

01

United States US

152,911 19.5%
02

Brazil BR

113,624 14.5%
03

India IN

91,894 11.7%
04

China CN

47,181 6%
05

SC SC

29,280 3.7%
06

Germany DE

19,158 2.4%
07

Pakistan PK

18,825 2.4%
08

Netherlands NL

18,514 2.4%
09

Argentina AR

16,821 2.1%
10

Indonesia ID

15,601 2%

+40 more countries

THREAT LEVEL

LOW MED HIGH

IPs from the same Autonomous System (AS) network provider.

20 Related IPs

7.4/10 Avg Threat

44% Avg Confidence

20 High Threat

High-risk network: Majority of related IPs are flagged

Elevated Risk

Threat Categories

Technical Details

Recommended Mitigations

Behavioral Analysis

Reputable Network

Security Recommendations

Basic Information

Geolocation

DNS Information

Statistics

Global Threat Ranking

Top Threat Categories

Hourly Activity

Weekly Activity

FEED

Top Threat Sources

JSON Report

Firewall Rules

iptables / netfilter

UFW (Ubuntu)

Windows Firewall

Cloudflare

nginx

Apache .htaccess

PDF Report

Analyzed high-risk IP addresses