ThreatFox IOC Database
You are viewing the ThreatFox database entry for ip:port 121.40.55.28:80.
Database Entry
This IOC expired
This IOC is an old IOC and hence has expired on 2025-12-17 01:15:01 UTC. We therefore refrain from exporting it into our datasets. As a result, this database entry is purely informational and has no impact.
| IOC ID: | 1358666 |
|---|---|
| IOC: | 121.40.55.28:80 |
| IOC Type : | ip:port |
| Threat Type : | botnet_cc |
| Malware: | Cobalt Strike |
| Malware alias: | Agentemis, BEACON, CobaltStrike, cobeacon |
| Confidence Level : | Confidence level is high (100%) |
| ASN: | AS37963 ALIBABA-CN-NET |
| Country: |  CN |
| First seen: | 2024-12-20 00:00:34 UTC |
| Last seen: | 2025-01-17 06:59:40 UTC |
| UUID: | 6fa777d9-be65-11ef-91ae-42010aa4000a |
| Reporter |  DonPasci |
| Reward |
10 credits from anonymous 10 credits from anonymous |
| Tags: | ALIBABA-CN-NET AS37963 c2 censys CobaltStrike cs-watermark-391144938 |
| Reference: | https://search.censys.io/hosts/121.40.55.28 |
Malware Samples
The table below documents recent malware samples observed that are associated with this indicator of compromise (IOC).
| Time stamp (UTC) | SHA256 hash | Bazaar |
|---|---|---|
| 2024-12-24 18:20:20 | 18176a8ccc62cced9771a9fb2e2996016d79b2fbd700a15dbdd7467d1b998ee0 |