Malicious IPs in Vietnam
IPv4 networks located in Vietnam that are currently flagged for malicious activity, aggregated from multiple external and internal threat intelligence sources. Snapshot of (UTC), updated daily.
Vietnam at a glance
Vietnam had 329 flagged IPv4 networks in the snapshot of 2026-10-12, rank #14 of 176 countries by absolute count. Relative to its allocated IPv4 space that is 19.9 flagged networks per million addresses, rank #18 of 75, 2.2 times the median of 9.15 across all rated countries. The largest category is brute force sources with 77% of the flagged networks, followed by other malicious networks (12%). The three networks (ASNs) with the most flagged IPs hold 53% of them, led by VIETEL-AS-AP - Viettel Group (AS7552). Another 16 flagged IPv6 networks are located in Vietnam.
Malicious activity in Vietnam by category
A network listed in several categories counts once, in the most specific one. Also flagged: 16 IPv6 networks.
Brute force sources in Vietnam
252 (77%)252 flagged networks, #8 of 157 countries for brute force sources. Sources of password guessing against SSH, mail, FTP and web logins. Brute Force Sources by Country
Other malicious networks in Vietnam
40 (12%)40 flagged networks, #21 of 143 countries for other malicious networks. Addresses and ranges reported as malicious without a more specific category. Other Malicious Networks by Country
Botnet hosts in Vietnam
22 (7%)22 flagged networks, #19 of 120 countries for botnet hosts. Infected hosts taking part in a botnet. Botnet Hosts by Country
Spam sources in Vietnam
11 (3%)11 flagged networks, #12 of 86 countries for spam sources. Sources of email spam. Spam Sources by Country
C2 servers in Vietnam
2 (1%)2 flagged networks, #29 of 51 countries for C2 servers. Command-and-control servers, payload hosts and other attacker-run infrastructure. C2 Servers by Country
Scanners in Vietnam
2 (1%)2 flagged networks, #23 of 38 countries for scanners. Hosts scanning or probing services on the internet. Scanners by Country
Networks with the most flagged IPs in Vietnam
Autonomous systems announcing the flagged networks located in Vietnam.
| # | Network | Flagged networks |
|---|---|---|
| 1 | AS7552VIETEL-AS-AP - Viettel Group | 91 |
| 2 | AS45899VNPT-AS-VN - VNPT Corp | 55 |
| 3 | AS18403FPT-VN - FPT Telecom Company | 28 |
| 4 | AS135905VNPT-AS-VN - VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | 15 |
| 5 | AS38731VTDC-AS-VN - Vietel - CHT Compamy Ltd | 13 |
| 6 | AS150895EZTECH-VN - EZ TECHNOLOGY COMPANY LIMITED | 12 |
| 7 | AS7602SPT-AS-VN - Sai gon Postel Corporation | 12 |
| 8 | AS24086VIETTEL-AS-VN - Viettel Corporation | 8 |
| 9 | AS131423LVHN-AS-VN - Branch of Long Van System Solution JSC - Hanoi | 6 |
| 10 | AS131353NHANHOA-AS-VN - NhanHoa Software company | 5 |
Compare Vietnam with other countries
Ranked by flagged networks per million allocated IPv4 addresses.
Countries ranked next to Vietnam by rate
| # | Country | Networks | Per million |
|---|---|---|---|
| 16 | Philippines | 131 | 20.9 |
| 17 | Paraguay | 24 | 20.8 |
| 18 | Vietnam | 329 | 19.9 |
| 19 | Belgium | 240 | 19.4 |
| 20 | Ukraine | 169 | 18.4 |
| 21 | Tanzania | 20 | 18.1 |
Other countries in the APNIC region
| # | Country | Networks | Per million |
|---|---|---|---|
| 3 | Bangladesh | 146 | 69.9 |
| 4 | Pakistan | 353 | 62.1 |
| 6 | Nepal | 32 | 54.6 |
| 8 | Sri Lanka | 20 | 35.5 |
| 9 | India | 1,341 | 31.9 |
| 10 | Hong Kong SAR China | 513 | 31.8 |
| 16 | Philippines | 131 | 20.9 |
| 22 | Indonesia | 344 | 17.7 |
Questions about Vietnam
- How many malicious IP addresses are there in Vietnam?
- On 2026-10-12, 329 IPv4 networks (/24 blocks) located in Vietnam were flagged for malicious activity, with 607 listed IPv4 addresses and 16 IPv6 networks. Each /24 counts once, however many of its addresses are listed.
- Which networks in Vietnam host the most flagged IPs?
- VIETEL-AS-AP - Viettel Group (AS7552, 91 networks), VNPT-AS-VN - VNPT Corp (AS45899, 55 networks), FPT-VN - FPT Telecom Company (AS18403, 28 networks). Large hosting providers appear because attackers rent their servers, not necessarily because of the operator.
Query this data per IP via the API
Look up threat categories, reputation score, ASN and geolocation for any address in Vietnam or anywhere else with one API call.