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Subnet 171.231.188.0/24
SUBNET Active highWhy this campaign was detected
3 IPs from the same /24 subnet (171.231.188.0/24) were observed attacking our sensors within the same time window. All belong to Viettel Group (AS7552). Concentrated activity from adjacent IPs is a strong indicator of a single operator or coordinated botnet.
Primary ASN
AS7552 · Viettel Group
Subnet
171.231.188.0/24
Country
🇻🇳 VN
Cloud Provider
—
Member Count
3 IPs
Below average
Total Events
151
Below average by volume
Started / Ended
2026-08-16 15:32 — ongoing
Attack Types
MITRE ATT&CK Techniques
Initial Access
Discovery
Member Actors
| IP Address | Behavior | Confidence | Flags | Events | Agents | Attack Types | Hostname | Last Seen | |
|---|---|---|---|---|---|---|---|---|---|
| 171.231.188.76 | credential_harvester | 37% | 51 | 1 | ssh:bruteforce | — | 2026-08-27 12:27 | evidence → | |
| 171.231.188.81 | credential_harvester | 34% | 81 | 1 | ssh:bruteforce | — | 2026-08-21 19:09 | evidence → | |
| 171.231.188.110 | credential_probe | 18% | 1x OSINT | 19 | 1 | ssh:bruteforce | — | 2026-08-22 12:00 | evidence → |
VPN Known VPN or proxy provider
DROP ASN on Spamhaus DROP list
Nx OSINT Corroborated by N external threat feeds