ABUSE.MOM
THREAT REPORT

IP Threat Report
139.255.9.250

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 05:54:08
First seen: 2026-05-06 10:00:06
Last seen: 2026-05-12 07:01:02
173

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 173/100. Total malicious requests observed: 2.

DANGER_PATHRATIO_404METHODUA_CHANGED
01

Geolocation & Classification

IP Address
139.255.9.250
Type
Residential
Country
🇮🇩 Indonesia
City
Tangerang
ISP
PT. LINKNET
Organization
Unknown
Autonomous System
AS9905 Linknet ASN
Hit Count
2
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger medium hits: 1Medium-risk: admin panels, config files+10
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
POST requests presentBehavioral anomaly detected by automated analysis+8
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger strong hits: 6High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 4Medium-risk: admin panels, config files+40
Σ = 248
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

2026-05-06 10:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 2 (+50), Danger medium hits: 1 (+10), 404 ratio 40-60% (+15)
2026-05-12 07:01:02
Last malicious request observed
Total score reached: 173/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

PT. LINKNET
AS9905 · 🇮🇩 Indonesia
06

Recommendations

Actions taken & recommended

  • IP 139.255.9.250 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 139.255.9.250: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🤖 User-Agent Anomaly Defense

IP 139.255.9.250 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

08

Open Ports & Services

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

OPEN PORTS (1)
PortServiceRiskDescription
2000UnknownLowService on port 2000
Hostnames: ln-static-139-255-9-250.link.net.id
PTR: ln-static-139-255-9-250.link.net.id

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

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

10

Threat Analysis

139.255.9.250 has been assigned a threat score of 173/100 (Critical). A score this high marks a critical threat actor. This address has demonstrated persistent, aggressive malicious behavior across multiple detection vectors.

The following attack categories were identified:

Path EnumerationUser-Agent Anomaly

📊 Threat Analysis

Our monitoring infrastructure has identified 139.255.9.250, geolocated to Tangerang, Indonesia, operating on the network of PT. LINKNET, as a source of suspicious network activity. Our sensors captured 2 malicious requests from this address across a 5-day span, reflecting a sustained attack cadence of ~0.4 requests per day. 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 User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Indonesia currently accounts for 101 blocked IPs in our database, making it a significant source of malicious traffic. At 173/100, 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

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157.15.40.88 (340)203.175.125.130 (340)157.15.40.93 (340)157.15.40.62 (340)157.15.40.89 (340)View all →

🏢 Same network: AS9905

View all →
12

Security Intelligence

💡 Server-Side Request Forgery (SSRF)

SSRF attacks trick servers into making requests to internal resources that should not be publicly accessible. This can expose cloud metadata endpoints, internal APIs, and private network services, potentially leading to full infrastructure compromise.

💡 DNS Amplification Attack Mechanics

DNS amplification exploits open resolvers to reflect and amplify traffic toward victims. A small query triggers a large response directed at the spoofed source IP, achieving amplification factors of 50x or more, overwhelming target bandwidth.

🔍 Check Any IP Address

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