← Back to feed
Subnet 121.29.4.0/24
SUBNET Ended highWhy this campaign was detected
3 IPs from the same /24 subnet (121.29.4.0/24) were observed attacking our sensors within the same time window. All belong to CHINA UNICOM China169 Backbone (AS4837). Concentrated activity from adjacent IPs is a strong indicator of a single operator or coordinated botnet.
Primary ASN
AS4837 · CHINA UNICOM China169 Backbone
Subnet
121.29.4.0/24
Country
🇨🇳 CN
Cloud Provider
—
Member Count
3 IPs
Below average
Total Events
105
Below average by volume
Started / Ended
2026-03-27 00:36 — 2026-07-10 12:27
Attack Types
MITRE ATT&CK Techniques
Initial Access
Discovery
Command and Control
Member Actors
| IP Address | Behavior | Confidence | Flags | Events | Agents | Attack Types | Hostname | Last Seen | |
|---|---|---|---|---|---|---|---|---|---|
| 121.29.4.74 | malware_dropper | 46% | 41 | 2 | ssh:bruteforce | — | 2026-05-28 05:19 | evidence → | |
| 121.29.4.85 | scanner | 27% | 56 | 2 | ssh:bruteforce | — | 2026-05-29 14:01 | evidence → | |
| 121.29.4.46 | scanner | 13% | 8 | 1 | ssh:bruteforce | — | 2026-06-03 12:22 | evidence → |
VPN Known VPN or proxy provider
DROP ASN on Spamhaus DROP list
Nx OSINT Corroborated by N external threat feeds