ABUSE.MOM
THREAT REPORT

IP Threat Report
172.237.91.99

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:08:55
First seen: 2026-03-29 13:00:06
Last seen: 2026-03-29 13:00:06
155

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 155/100. Total malicious requests observed: 1.

DANGER_PATHBURST
01

Geolocation & Classification

IP Address
172.237.91.99
Type
Hosting
Country
🇸🇬 Singapore
City
Singapore
ISP
Akamai Technologies, Inc.
Organization
Akamai Technologies, Inc.
Autonomous System
AS63949 Akamai Connected Cloud
Hit Count
1
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
Danger medium hits: 16Medium-risk: admin panels, config files+60
Burst: 9 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 16 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 155
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

2026-03-29 13:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 1 (+25), Danger medium hits: 16 (+60), Burst: 9 req / 2s (+35)
2026-03-29 13:00:06
Last malicious request observed
Total score reached: 155/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Akamai Technologies, Inc.
AS63949 · 🇸🇬 Singapore
06

Recommendations

Actions taken & recommended

  • IP 172.237.91.99 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 172.237.91.99.

08

Open Ports & Services

Network reconnaissance data from Shodan. Open ports may indicate running services, misconfigurations, or potential attack surfaces.

OPEN PORTS (1)
PortServiceRiskDescription
3389RDPHighRemote Desktop Protocol — primary target for ransomware attacks

⚠️ 1 high-risk port detected on 172.237.91.99. Exposed RDP (3389) is the #1 entry point for ransomware attacks. These services should not be publicly accessible without strict firewall rules.

Hostnames: 172-237-91-99.ip.linodeusercontent.com
PTR: 172-237-91-99.ip.linodeusercontent.com

Data source: Shodan InternetDB. Scanned independently of abuse.mom.

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

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

10

Threat Analysis

172.237.91.99 has been assigned a threat score of 155/100 (Critical). This represents a critical risk level. Our detection systems have flagged multiple high-confidence indicators of malicious intent from this address.

The following attack categories were identified:

Request Flooding

📊 Threat Analysis

Our monitoring infrastructure has identified 172.237.91.99, geolocated to Singapore, Singapore, operating on the network of Akamai Technologies, Inc., as a source of suspicious network activity. Over a period of 1 days, this IP generated 1 malicious requests, averaging approximately 1 requests per day. Operating from datacenter infrastructure, this IP is typical of addresses used in organized attack operations. Cloud and VPS providers are commonly exploited as launching platforms for automated scanning. Rate-based attacks from this IP aim to overwhelm server resources through high-volume request flooding. Singapore currently accounts for 11 blocked IPs in our database, making it a notable source of malicious traffic. With a threat score of 155/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly 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

🇸🇬 Top threats from Singapore

172.236.152.70 (230)104.64.211.88 (180)104.64.217.125 (180)172.236.143.14 (180)104.64.192.186 (180)View all →

🏢 Same network: AS63949

50.116.47.11 (255)172.238.126.146 (230)45.33.70.9 (230)74.207.234.150 (230)172.236.152.70 (230)View all →
12

Security Intelligence

💡 Credential Stuffing at Scale

Credential stuffing uses stolen username-password pairs from data breaches to attempt logins across many websites. Since users frequently reuse passwords, these automated attacks achieve success rates of 0.1-2%, which translates to thousands of compromised accounts from millions of attempts.

💡 Mobile Malware Distribution

Mobile malware reaches devices through unofficial app stores, malicious links, and even occasionally through official stores using obfuscation techniques. Banking trojans, spyware, and ransomware variants specifically designed for mobile platforms continue to proliferate.

🔍 Check Any IP Address

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