ABUSE.MOM
THREAT REPORT

IP Threat Report
77.75.77.72

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 19:33:18
First seen: 2026-02-17 17:25:06
Last seen: 2026-05-09 19:00:06
65

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 65/100. Total malicious requests observed: 46.

BOT_UADANGER_PATHIMPORTRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
77.75.77.72
Type
Residential
Country
🇨🇿 Czech Republic
City
Prague
ISP
Seznam - III
Organization
Unknown
Autonomous System
AS43037 Seznam.cz, a.s.
Hit Count
46
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: crawlerKnown bot/crawler User-Agent detected+40
Danger medium hits: 2Medium-risk: admin panels, config files+20
Imported from old blocklistBehavioral anomaly detected by automated analysis+0
Danger medium hits: 1Medium-risk: admin panels, config files+10
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Σ = 130
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-02-17 17:25:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: crawler (+40), Danger medium hits: 2 (+20), Imported from old blocklist
2026-05-09 19:00:06
Last malicious request observed
Total score reached: 65/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Seznam - III
AS43037 · 🇨🇿 Czech Republic
06

Recommendations

Actions taken & recommended

  • IP 77.75.77.72 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Other malicious IPs detected in the same /24 subnet — consider blocking 77.75.77.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🤖 User-Agent Anomaly Defense

IP 77.75.77.72 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🔎 Path Enumeration Protection

Block scanning from 77.75.77.72: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

07

Neighbors in 77.75.77.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

09

Blacklist Status (DNSBL)

This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.

✓ Clean
Spamhaus ZEN

Checked: Spamhaus, SpamCop, Barracuda, SORBS, CBL, UCEProtect. Results may change over time.

10

Threat Analysis

77.75.77.72 has been assigned a threat score of 65/100 (High). This score indicates high threat severity. The IP has shown clear patterns of malicious behavior that warrant immediate defensive measures.

The following attack categories were identified:

User-Agent AnomalyPath Enumeration

📊 Threat Analysis

Threat intelligence analysis has linked 77.75.77.72 to malicious activity originating from Prague, Czech Republic, operating on the network of Seznam - III. The address has been under observation since its initial detection. The address has been active for 81 days in our monitoring system, producing 46 flagged requests at a rate of ~0.6/day. This is a residential IP address, suggesting a compromised home device such as a router, smart appliance, or infected workstation participating in a botnet. Two attack patterns were identified (User-Agent Anomaly and Path Enumeration), suggesting a semi-automated campaign that targets multiple vulnerabilities. Czech Republic currently accounts for 90 blocked IPs in our database, making it a notable source of malicious traffic. The score of 65/100 warrants active monitoring and rate-limiting. Full blocking is advisable for sensitive systems.

This IP is classified as residential, suggesting it may belong to a compromised home device, IoT botnet member, or an infected personal computer. Residential IPs involved in attacks often indicate malware infection without the owner's knowledge.

11

Related Threats

🇨🇿 Top threats from Czech Republic

82.118.30.24 (255)82.118.30.31 (255)82.118.30.19 (255)82.118.30.22 (255)82.118.30.12 (255)View all →

🏢 Same network: AS43037

77.75.76.170 (120)77.75.76.171 (110)77.75.77.95 (85)77.75.78.162 (85)77.75.77.109 (75)View all →
12

Security Intelligence

💡 TLS Fingerprinting (JA3/JA4)

TLS fingerprinting creates unique identifiers based on how clients negotiate encrypted connections. The JA3 and JA4 methods generate hashes from TLS ClientHello parameters, enabling identification of specific tools and malware regardless of IP address changes.

💡 Satellite Internet Security

Satellite internet introduces unique security challenges including high latency that affects real-time threat detection, shared bandwidth that enables traffic sniffing, and coverage areas that cross multiple jurisdictions complicating legal response.

🔍 Check Any IP Address

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