ABUSE.MOM
THREAT REPORT

IP Threat Report
77.75.76.160

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 19:33:18
First seen: 2026-02-19 21:55:04
Last seen: 2026-05-15 11:00:05
60

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 60/100. Total malicious requests observed: 21.

BOT_UADANGER_PATHRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
77.75.76.160
Type
Residential
Country
🇨🇿 Czech Republic
City
Prague
ISP
Seznam - III
Organization
Unknown
Autonomous System
AS43037 Seznam.cz, a.s.
Hit Count
21
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: crawlerKnown bot/crawler User-Agent detected+40
Danger medium hits: 1Medium-risk: admin panels, config files+10
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Σ = 85
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

2026-02-19 21:55:04
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: crawler (+40), Danger medium hits: 1 (+10), 404 ratio 40-60% (+15)
2026-05-15 11:00:05
Last malicious request observed
Total score reached: 60/100
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 77.75.76.160 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 77.75.76.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🤖 Bot Detection

Address UA spoofing from 77.75.76.160: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

🔎 Path Enumeration Protection

Block scanning from 77.75.76.160: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

07

Neighbors in 77.75.76.0/24

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
ix.dnsbl.manitu.net
✓ Clean
dnsbl.sorbs.net
✓ Clean
bl.spamcop.net
✓ Clean
zen.spamhaus.org
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
b.barracudacentral.org
✓ Clean
truncate.gbudb.net
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

77.75.76.160 has been assigned a threat score of 60/100 (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

77.75.76.160 is registered in Prague, Czech Republic, operating on the network of Seznam - III. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. The address has been active for 84 days in our monitoring system, producing 21 flagged requests at a rate of ~0.3/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. At 60/100, this IP presents a meaningful threat. Implement rate limiting with escalation to blocking.

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

💡 HTTP Header Analysis for Threat Detection

Examining HTTP headers beyond User-Agent reveals attack tools and automated scripts. Missing standard headers, unusual ordering, non-standard values, and inconsistencies with claimed client identity all serve as reliable detection signals.

💡 Honeypot Network Intelligence

Honeypots are decoy systems designed to attract and study attackers. Networks of honeypots provide early warning of new attack campaigns, reveal attacker tools and techniques, and generate high-confidence threat intelligence with minimal false positives.

🔍 Check Any IP Address

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