ABUSE.MOM
THREAT REPORT

IP Threat Report
198.105.121.200

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-06 03:39:13
First seen: 2026-08-24 17:50:32
Last seen: 2026-08-30 01:10:46
50

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 50/100. Total malicious requests observed: 209.

BOT_UADANGER_PATH
01

Geolocation & Classification

IP Address
198.105.121.200
Type
Hosting
Country
🇬🇧 United Kingdom
City
Canary Wharf
ISP
SYN-UK
Organization
SYN LTD
Autonomous System
AS64080 SYN LTD
Hit Count
209
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger medium hits: 1Medium-risk: admin panels, config files+10
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
Σ = 50
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

2026-08-24 17:50:32
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger medium hits: 1 (+10), UA bot: Go-http-client (+40)
2026-08-30 01:10:46
Last malicious request observed
Total score reached: 50/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

SYN-UK
AS64080 · 🇬🇧 United Kingdom
06

Recommendations

Actions taken & recommended

  • IP 198.105.121.200 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 198.105.121.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🤖 User-Agent Anomaly Defense

IP 198.105.121.200 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

07

Neighbors in 198.105.121.0/24

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

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

10

Threat Analysis

198.105.121.200 has been assigned a threat score of 50/100 (Medium). The IP presents a medium-level risk. Consider implementing rate limits and enhanced logging for traffic from this address.

The following attack categories were identified:

User-Agent Anomaly

📊 Threat Analysis

The address 198.105.121.200 originates from Canary Wharf, United Kingdom, operating on the network of SYN-UK. It was identified through automated analysis of incoming network traffic across monitored endpoints. Our sensors captured 209 malicious requests from this address across a 5-day span, reflecting a sustained attack cadence of ~41.8 requests per day. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. Detected suspicious User-Agent anomalies including empty, forged, or rapidly rotating UA strings — characteristic of automated scanning tools. Our records show 105 malicious IPs originating from United Kingdom, positioning it as a significant contributor to global threat activity. The score of 50/100 warrants active monitoring and rate-limiting. Full blocking is advisable for sensitive systems.

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 United Kingdom

45.86.203.126 (350)104.28.240.60 (340)104.28.192.67 (340)104.28.208.60 (340)194.32.120.30 (320)View all →

🏢 Same network: AS64080

View all →
12

Security Intelligence

💡 HTTP Request Smuggling

Request smuggling exploits differences in how front-end and back-end servers parse HTTP requests. This technique can bypass security controls, poison web caches, and hijack other users sessions by desynchronizing request boundaries.

💡 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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