ABUSE.MOM
THREAT REPORT

IP Threat Report
158.178.231.159

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 06:22:17
First seen: 2026-02-17 17:25:07
Last seen: 2026-02-17 17:26:16
300

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 300/100. Total malicious requests observed: 9.

BOT_UAUA_CHANGEDDANGER_PATHRATIO_404REDIRECT_PROBEBURSTREFERERIMPORT
01

Geolocation & Classification

IP Address
158.178.231.159
Type
Residential
Country
🇸🇬 Singapore
City
Singapore
ISP
Oracle Corporation
Organization
Oracle Corporation
Autonomous System
AS31898 Oracle Corporation
Hit Count
9
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger strong hits: 4High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 2Medium-risk: admin panels, config files+20
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 12 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 22 req / 10sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
Danger strong hits: 5High-risk paths: shells, RCE vectors, exploits+100
Burst: 29 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 11 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 23 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 7High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 3Medium-risk: admin panels, config files+30
Burst: 37 req / 10sAbnormally fast request rate — automated scanning+35
Imported from old blocklistBehavioral anomaly detected by automated analysis+0
Σ = 670
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

2026-02-17 17:25:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: Go-http-client (+40), UA changed for same IP (+25), Danger strong hits: 4 (+100)
2026-02-17 17:26:16
Last malicious request observed
Total score reached: 300/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Oracle Corporation
AS31898 · 🇸🇬 Singapore
06

Recommendations

Actions taken & recommended

  • IP 158.178.231.159 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

🤖 User-Agent Anomaly Defense

IP 158.178.231.159 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🔎 Directory Scan Defense

IP 158.178.231.159 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 158.178.231.159.

08

Open Ports & Services

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

OPEN PORTS (1)
PortServiceRiskDescription
22SSHLowSecure Shell — common brute force target for remote access
DETECTED TECHNOLOGIES
openbsd:openssh:9.6p1canonical:ubuntu_linux

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
Spamhaus ZEN

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

10

Threat Analysis

158.178.231.159 has been assigned a threat score of 300/100 (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:

User-Agent AnomalyPath EnumerationRequest Flooding

📊 Threat Analysis

158.178.231.159 is registered in Singapore, Singapore, operating on the network of Oracle Corporation. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. Over a period of 1 days, this IP generated 9 malicious requests, averaging approximately 9 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 combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. With 208 flagged addresses, Singapore represents a significant presence in our threat database. With a threat score of 300/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

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 Singapore

85.203.23.12 (340)85.203.23.31 (330)84.17.39.195 (325)192.166.246.30 (325)85.203.21.101 (320)View all →

🏢 Same network: AS31898

217.142.185.108 (310)161.118.211.239 (300)161.118.239.144 (290)213.35.119.176 (285)161.118.206.229 (280)View all →
12

Security Intelligence

💡 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.

💡 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.

🔍 Check Any IP Address

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