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Subnet 171.243.149.0/24
SUBNET Active highWhy this campaign was detected
3 IPs from the same /24 subnet (171.243.149.0/24) 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
171.243.149.0/24
Country
🇻🇳 VN
Cloud Provider
—
Member Count
3 IPs
Below average
Total Events
286
Below average by volume
Started / Ended
2026-05-23 18:33 — ongoing
Attack Types
MITRE ATT&CK Techniques
Initial Access
Discovery
Member Actors
| IP Address | Behavior | Confidence | Flags | Events | Agents | Attack Types | Hostname | Last Seen | |
|---|---|---|---|---|---|---|---|---|---|
| 171.243.149.73 | credential_harvester | 37% | 58 | 1 | ssh:bruteforce | — | 2026-05-26 19:08 | evidence → | |
| 171.243.149.78 | credential_harvester | 36% | 33 | 1 | ssh:bruteforce | — | 2026-05-26 18:28 | evidence → | |
| 171.243.149.254 | credential_harvester | 36% | 195 | 1 | ssh:bruteforce | — | 2026-05-23 19:00 | evidence → |
VPN Known VPN or proxy provider
DROP ASN on Spamhaus DROP list
Nx OSINT Corroborated by N external threat feeds