ABUSE.MOM
THREAT REPORT

IP Threat Report
31.13.191.34

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-22 02:46:14
First seen: 2026-03-25 23:00:06
Last seen: 2026-03-27 11:05:19
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.

UA_CHANGEDREFERERFORM_SPAM
01

Geolocation & Classification

IP Address
31.13.191.34
Type
Residential
Country
🇸🇪 Sweden
City
Stockholm
ISP
M247 Europe SRL
Organization
M247 Ltd Stockholm
Autonomous System
AS9009 M247 Europe SRL
Hit Count
3
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Foreign referer seenReferer from unrelated external domain+10
Form spam: no_js_checkSpam/malware keywords in request content+0
Σ = 35
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

2026-03-25 23:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA changed for same IP (+25), Foreign referer seen (+10), Form spam: no_js_check
2026-03-27 11:05:19
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

M247 Europe SRL
AS9009 · 🇸🇪 Sweden
06

Recommendations

Actions taken & recommended

  • IP 31.13.191.34 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 31.13.191.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🤖 Bot Detection

Address UA spoofing from 31.13.191.34: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

📧 Content Abuse Prevention

IP 31.13.191.34 is flooding forms with spam. Implement time-based tokens and block IPs submitting more than 5 forms per hour.

07

Neighbors in 31.13.191.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

08

Open Ports & Services

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

OPEN PORTS (2)
PortServiceRiskDescription
80HTTPLowHTTP web server — standard web traffic
443HTTPSLowHTTPS web server — encrypted web traffic
DETECTED TECHNOLOGIES
caddyserver:caddygolang:go
Hostnames: www.icloud.comwww.icloud.com.cnicloud.comauth.apple.comicloud.cdn-apple.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.

⛔ LISTED
zen.spamhaus.org
✓ Clean
ix.dnsbl.manitu.net
✓ Clean
dnsbl.sorbs.net
✓ 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

31.13.191.34 has been assigned a threat score of 70/100 (High). This classifies it as a high-severity threat. Proactive blocking is recommended for sensitive infrastructure.

The following attack categories were identified:

User-Agent Anomaly

📊 Threat Analysis

The address 31.13.191.34 originates from Stockholm, Sweden, operating on the network of M247 Europe SRL. It was identified through automated analysis of incoming network traffic across monitored endpoints. Over a period of 1 days, this IP generated 3 malicious requests, averaging approximately 3 requests per day. Operating from a residential network, this IP may represent a compromised home gateway or IoT device that has been drafted into a larger attack infrastructure. The IP exhibits User-Agent manipulation, switching between different browser identities or sending empty headers. Our records show 103 malicious IPs originating from Sweden, positioning it as a significant contributor to global threat activity. At 70/100, this IP warrants immediate defensive action.

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 Sweden

74.241.249.229 (340)51.107.182.56 (280)20.91.197.150 (280)51.12.82.80 (280)20.91.194.140 (280)View all →

🏢 Same network: AS9009

158.173.36.160 (305)45.91.20.90 (295)146.70.141.248 (280)66.225.209.6 (275)158.173.36.245 (270)View all →
12

Security Intelligence

💡 TLS Fingerprinting (JA3/JA4)

TLS fingerprinting creates unique identifiers based on how clients negotiate encrypted connections. The JA3 and JA4 methods generate hashes from TLS ClientHello parameters, enabling identification of specific tools and malware regardless of IP address changes.

💡 State-Sponsored Cyber Operations

Nation-state actors conduct sophisticated campaigns for espionage, sabotage, and influence operations. Their resources exceed typical criminal organizations, enabling zero-day exploitation, long-term persistent access, and attacks on critical infrastructure.

🔍 Check Any IP Address

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