ABUSE.MOM
THREAT REPORT

IP Threat Report
103.59.161.221

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-25 04:52:02
First seen: 2026-10-05 01:52:16
Last seen: 2026-10-25 04:04:52
205

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 205/100. Total malicious requests observed: 315.

BURSTDANGER_PATHRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
103.59.161.221
Type
Residential
Country
🇮🇩 Indonesia
City
Kediri
ISP
PT Gunung Sedayu Sentosa
Organization
PT Gunung Sedayu Sentosa
Autonomous System
AS150493 PT Gunung Sedayu Sentosa
Hit Count
315
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst 11/2sAbnormally fast request rate — automated scanning+35
Burst 12/2sAbnormally fast request rate — automated scanning+35
Burst 14/2sAbnormally fast request rate — automated scanning+35
Burst 38/10sAbnormally fast request rate — automated scanning+35
Burst 39/10sAbnormally fast request rate — automated scanning+35
Burst 47/10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 28High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 42High-risk paths: shells, RCE vectors, exploits+100
Probe 302→404Behavioral anomaly detected by automated analysis+20
Σ = 445
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

2026-10-05 01:52:16
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Burst 11/2s (+35), Burst 12/2s (+35)
2026-10-25 04:04:52
Last malicious request observed
Total score reached: 205/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

PT Gunung Sedayu Sentosa
AS150493 · 🇮🇩 Indonesia

We have detected 26 malicious IPs from this autonomous system.

View all IPs from AS150493 →
06

Recommendations

Actions taken & recommended

  • IP 103.59.161.221 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 103.59.161.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Directory Scan Defense

IP 103.59.161.221 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 103.59.161.221 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

07

Neighbors in 103.59.161.0/24

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
zen.spamhaus.org
✓ Clean
bl.blocklist.de
✓ Clean
cbl.abuseat.org
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
dnsbl.dronebl.org
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

103.59.161.221 has been assigned a threat score of 205/100 (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:

Path EnumerationRequest Flooding

📊 Threat Analysis

The address 103.59.161.221 originates from Kediri, Indonesia, operating on the network of PT Gunung Sedayu Sentosa. It was identified through automated analysis of incoming network traffic across monitored endpoints. During its 20-day observation window, we recorded 315 hostile requests from this IP — roughly 15.8 per day on average. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The dual attack vectors of Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. Indonesia currently accounts for 1,091 blocked IPs in our database, making it a major source of malicious traffic. A score of 205/100 places this address in the top tier of severity. Block and investigate any historical connections.

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 Indonesia

157.15.40.62 (340)157.15.40.88 (340)157.15.40.89 (340)157.15.40.61 (340)157.15.40.93 (340)View all →

🏢 Same network: AS150493

103.59.160.95 (238)103.59.160.248 (220)103.59.161.65 (215)103.59.161.199 (205)103.59.161.64 (205)View all →
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.

💡 Certificate Transparency Monitoring

Certificate Transparency logs record all publicly trusted TLS certificates. Monitoring these logs reveals unauthorized certificate issuance, phishing domain preparation, and shadow IT — providing early warning of attacks targeting an organizations domain.

🔍 Check Any IP Address

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