ABUSE.MOM
THREAT REPORT

IP Threat Report
91.236.142.3

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-22 07:47:47
First seen: 2026-03-05 11:00:05
Last seen: 2026-04-30 09:00:05
140

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 140/100. Total malicious requests observed: 24.

DANGER_PATHRATIO_404REDIRECT_PROBEBURSTREFERER
01

Geolocation & Classification

IP Address
91.236.142.3
Type
Residential
Country
🇷🇺 Russia
City
Domodedovo
ISP
Gigakom Sistems OOO
Organization
Gigacom Systems Ltd.
Autonomous System
AS51341 Gigakom Sistems OOO
Hit Count
24
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger medium hits: 6Medium-risk: admin panels, config files+60
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 6 req / 2sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Danger medium hits: 10Medium-risk: admin panels, config files+60
Σ = 235
03

Observed Activity

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

[redacted]
GET
/
200
[redacted]
GET
/page
200
Requests shown: 2 · HTTP 404: 0 · Dangerous patterns: 0

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

04

Timeline

2026-03-05 11:00:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger medium hits: 6 (+60), 404 ratio 40-60% (+15), Probe pattern 302->404 same path (+20)
2026-04-30 09:00:05
Last malicious request observed
Total score reached: 140/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Gigakom Sistems OOO
AS51341 · 🇷🇺 Russia
06

Recommendations

Actions taken & recommended

  • IP 91.236.142.3 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Path Enumeration Protection

Block scanning from 91.236.142.3: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 91.236.142.3.

09

Blacklist Status (DNSBL)

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

⛔ LISTED
Spamhaus ZEN

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

10

Threat Analysis

91.236.142.3 has been assigned a threat score of 140/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Path EnumerationRequest Flooding

📊 Threat Analysis

91.236.142.3 is registered in Domodedovo, Russia, operating on the network of Gigakom Sistems OOO. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. Our sensors captured 24 malicious requests from this address across a 55-day span, reflecting a sustained attack cadence of ~0.4 requests per day. Operating from a residential network, this IP may represent a compromised home gateway or IoT device that has been drafted into a larger attack infrastructure. Two attack patterns were identified (Path Enumeration and Request Flooding), suggesting a semi-automated campaign that targets multiple vulnerabilities. With 101 flagged addresses, Russia represents a significant presence in our threat database. At 140/100, this is an extremely high-risk address. All traffic should be considered hostile.

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 Russia

157.22.102.172 (313)178.130.54.159 (288)95.182.125.201 (265)72.56.191.6 (265)91.240.87.225 (263)View all →

🏢 Same network: AS51341

View all →
12

Security Intelligence

💡 XML External Entity (XXE) Attacks

XXE vulnerabilities in XML parsers allow attackers to read local files, perform SSRF, and execute denial of service attacks. Many legacy applications and APIs remain vulnerable to XXE due to insecure default XML parser configurations.

💡 Autonomous System Analysis

Analyzing attack patterns at the AS (Autonomous System) level reveals which networks harbor the most malicious activity. Some ASes have abuse rates orders of magnitude higher than average, indicating lax enforcement of acceptable use policies.

🔍 Check Any IP Address

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