Critical Alert
Security alert: 121.78.158.30 rated 10/10 based on 33 verified incidents.
Threat profile indicates sustained malicious activity with 9% confidence rating.
More threatening than 95% of monitored IPs
IP Address
121.78.158.30
IPv4
Public
KR
Threat Intelligence Analysis
Automated assessment based on aggregated, anonymized threat data
Top 5% Most Dangerous
KR
Location
Hostcenter
ASN 45382
33
Reports
Honeypot
Data Source
Threat Categories
Hacking
28
SSH
23
Exploited Host
7
Technical Details
General hacking activity includes various intrusion attempts, exploitation of vulnerabilities, and unauthorized access attempts.
Recommended Mitigations
Keep systems patched, implement intrusion detection, and follow security best practices.
High-Risk Network Association
This IP belongs to a network (ASN 45382) with elevated threat levels. The ISP Hostcenter hosts multiple reported malicious addresses, suggesting systemic security issues or permissive policies.
Network-wide patterns may indicate this is part of a larger malicious infrastructure.
Security Recommendations
Implement immediate countermeasures. Well-resourced threat actor identified.
Continue monitoring for emerging patterns.
Reputation Summary
Threat Level
10/10
Critical
Critical
Activity Frequency
0/10
Inactive
Confidence Score
4%
Low Confidence
Confidence History
7. Apr 2026 - 26. Jun 2026
9%
Current
Stable
Trend
Security Reports (30)
| Date | Categories | Source | Confidence |
|---|---|---|---|
| Exploited Host | Honeypot | 75% | |
| Exploited Host | Honeypot | 75% | |
| Hacking Exploited Host | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking Exploited Host | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking Exploited Host | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking Exploited Host | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% | |
| Hacking Exploited Host | Honeypot x2 | 75% | |
| Hacking SSH | Honeypot x2 | 75% |
Technical Details
Basic Information
- IP Address
- 121.78.158.30
- IP Version
- IPv4
- Network Type
- Public
- Tor Network
- No
- Network Class
- Class A
Geolocation
- Country
-
KR
- ASN
- AS45382
- ISP
- Hostcenter
DNS Information
- Reverse DNS
- None
- PTR Record
- No
- Connection Type
- Static
Statistics
- Total Reports
- 33
- First Reported
- 7 Apr 2026
- Last Reported
- 26 Jun 2026, 08:32
Network Reputation
Analysis of the entire network (ASN) that this IP address belongs to, providing context about the hosting provider and network-wide threat patterns.
Network Identity
AS45382
Hostcenter
KR
Network Threat Assessment
9/10
This network has a high threat level with significant malicious activity reported across multiple IPs.
Network Statistics
2
Total IPs Monitored
27
Total Reports
13.5
Reports per IP
Network Context
This IP address belongs to Hostcenter (AS45382), which manages 2 IP addresses in our monitoring system. Out of these, 27 have been reported for suspicious activities, resulting in a network-wide threat level of 9/10.
Network warning:
This network has elevated threat levels. Exercise caution when interacting with IPs from this ASN.
Comparative Analysis
How this IP compares to others in our threat intelligence database
95
%
Global Threat Ranking
This IP is more threatening than 95% of all IPs in our database.
Top 10% Most DangerousGlobal Comparison
Compared against 1,326,491 reported IPs worldwide
Threat Level
10/10
avg: 6.0
++
Total Reports
33
avg: 7
++
Network Comparison
Compared against 6 IPs in ASN 45382
Threat Level
10/10
network avg: 6.0
++
Total Reports
33
network avg: 7
++
Network Hostcenter has overall threat level 9/10
Geographic Comparison
Compared against 5,608 IPs in KR
Threat Level
10/10
country avg: 7.2
+
Total Reports
33
country avg: 11
++
Activity Trends
Daily report activity over the last 30 days showing patterns and peaks.
Peak Day
0 reports
Daily Average
0
reports/day
Most Active
Wednesday
12 reports
Evolution of threat level over time based on reported categories and frequency.
Initial Threat
6/10
Current Threat
6/10
Distribution of threat categories reported over time.
Top Threat Categories
Hacking
31
SSH
26
Exploited Host
7
Activity patterns showing when this IP is most active during the day and week.
Hourly Activity
Peak activity at 12:00 with 5 reports
Weekly Activity
Geographic Threat Distribution
1,209,135 threat incidents tracked globally • Last 24h: 33,616 Logs
FEED
Top Threat Sources
-
01
Brazil261,016 21.6% -
02
United States206,716 17.1% -
03
India103,480 8.6% -
04
China50,912 4.2% -
05
Argentina42,401 3.5% -
06
SC29,446 2.4% -
07
Mexico27,910 2.3% -
08
Russia26,972 2.2% -
09
Germany24,345 2% -
10
Colombia24,266 2%
+40 more countries
THREAT LEVEL
LOW
MED
HIGH
Related IPs
Other IPs associated with this address through network or behavioral similarity
IPs from the same Autonomous System (AS) network provider.
5
Related IPs
5.2/10
Avg Threat
17%
Avg Confidence
1
High Threat
IPs from the same subnet range, likely same network segment.
1
Related IPs
7/10
Avg Threat
0%
Avg Confidence
1
High Threat
High-risk network: Majority of related IPs are flagged
IPs from the same country with similar threat profiles.
15
Related IPs
10/10
Avg Threat
96%
Avg Confidence
15
High Threat
High-risk network: Majority of related IPs are flagged
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10/10
Confidence
98%
Reports
20
ISP
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Confidence
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Reports
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ISP
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Confidence
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ISP
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Confidence
96%
Reports
41
ISP
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10/10
Confidence
96%
Reports
40
ISP
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Confidence
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Reports
37
ISP
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115.160.76.23
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Confidence
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Reports
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ISP
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Confidence
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Reports
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ISP
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Reports
31
ISP
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210.206.95.162
10/10
Confidence
96%
Reports
30
ISP
LG DACOM Corpor...
115.90.65.132
10/10
Confidence
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Reports
29
ISP
LG DACOM Corpor...
218.155.74.4
10/10
Confidence
96%
Reports
28
ISP
Korea Telecom
220.116.117.213
10/10
Confidence
96%
Reports
25
ISP
Korea Telecom
211.104.198.147
10/10
Confidence
96%
Reports
23
ISP
Korea Telecom
121.184.128.107
10/10
Confidence
96%
Reports
22
ISP
Korea Telecom
IPs with similar threat level and confidence scores.
15
Related IPs
10/10
Avg Threat
9%
Avg Confidence
15
High Threat
High-risk network: Majority of related IPs are flagged
34.75.69.187
10/10
Confidence
9%
Reports
3
Location
US
US
34.58.214.232
10/10
Confidence
9%
Reports
3
Location
US
US
34.140.110.179
10/10
Confidence
9%
Reports
3
Location
BE
BE
4.246.181.2
10/10
Confidence
9%
Reports
3
Location
US
US
20.218.243.163
10/10
Confidence
9%
Reports
4
Location
DE
DE
148.66.14.250
10/10
Confidence
9%
Reports
3
Location
HK
HK
4.184.60.71
10/10
Confidence
9%
Reports
3
Location
DE
DE
1.234.19.104
10/10
Confidence
9%
Reports
3
Location
KR
KR
124.121.95.192
10/10
Confidence
9%
Reports
3
Location
TH
TH
103.125.163.228
10/10
Confidence
9%
Reports
3
Location
IN
IN
203.73.171.206
10/10
Confidence
9%
Reports
3
Location
TW
TW
34.62.109.233
10/10
Confidence
9%
Reports
3
Location
BE
BE
216.227.187.44
10/10
Confidence
9%
Reports
3
Location
US
US
51.38.120.95
10/10
Confidence
9%
Reports
3
Location
FR
FR
144.123.77.239
10/10
Confidence
9%
Reports
3
Location
CN
CN