ABUSE.MOM
THREAT REPORT

IP Threat Report
87.99.129.138

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-22 14:12:51
First seen: 2026-05-12 01:00:07
Last seen: 2026-05-16 10:00:06
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 3.

BURST
01

Geolocation & Classification

IP Address
87.99.129.138
Type
Hosting
Country
🇺🇸 United States
City
Ashburn
ISP
Hetzner Online GmbH
Organization
HETZNER-DC
Autonomous System
AS213230 Hetzner Online GmbH
Hit Count
3
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst: 131 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 131 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 39 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 56 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 29 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 60 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 210
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

2026-05-12 01:00:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst: 131 req / 2s (+35), Burst: 131 req / 10s (+35), Burst: 39 req / 2s (+35)
2026-05-16 10:00:06
Last malicious request observed
Total score reached: 70/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Hetzner Online GmbH
AS213230 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 87.99.129.138 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

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 87.99.129.138.

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

87.99.129.138 has been assigned a threat score of 70/100 (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:

Request Flooding

📊 Threat Analysis

87.99.129.138 is registered in Ashburn, United States, operating on the network of Hetzner Online GmbH. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. The address has been active for 4 days in our monitoring system, producing 3 flagged requests at a rate of ~0.8/day. The IP is classified as hosting/datacenter infrastructure, commonly associated with rented servers used for automated attack campaigns, botnet command-and-control, or vulnerability scanning at scale. Rate-based attacks from this IP aim to overwhelm server resources through high-volume request flooding. With 104 flagged addresses, United States represents a significant presence in our threat database. A threat score of 70/100 places this IP in the high-risk category. Blocking at the firewall level is recommended.

This IP belongs to a hosting or data center provider. Malicious traffic from hosting infrastructure often originates from compromised VPS instances, rented servers used for scanning campaigns, or abused free-tier cloud accounts. Hosting providers typically respond to abuse reports within 24-72 hours.

11

Related Threats

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🏢 Same network: AS213230

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12

Security Intelligence

💡 DDoS Mitigation Approaches

Distributed denial of service attacks overwhelm infrastructure with traffic volume. Effective mitigation combines always-on traffic scrubbing, anycast network distribution, rate limiting, and the ability to quickly scale absorption capacity during attacks.

💡 Deepfake Technology in Social Engineering

Deepfake audio and video enable convincing impersonation of executives and trusted individuals. Real-time voice cloning has been used in successful fraud campaigns, adding a new dimension to social engineering that traditional security training does not address.

🔍 Check Any IP Address

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