TF-1932546
high
📛 Threat Title
Cobalt Strike: ip:port combination that is used for botnet Command&control (C&C) 23.27.143.19:443
Description
Indicator that identifies a botnet command&control server (C&C). IOC type: ip:port combination that is used for botnet Command&control (C&C). Attributed malware: Cobalt Strike (aliases: Agentemis,BEACON,CobaltStrike,cobeacon). Confidence: 100. Observed port: 443. First seen: 2026-09-25 01:05:07 UTC. Reporter: anonymous. Tags: CobaltStrike.
Indicators of Compromise (1)
Each indicator is enriched from the IOC database, threat-intel feed corroboration (Threat Hunt) and VirusTotal. Click one to expand.
ipv4
23.27.143.19
VT 6 / 91
IOC database
- Type
- ipv4
- Value
23.27.143.19- First seen
- Last seen
- Attached to this threat
- Appears in
- 3 threats
- Description
- ip:port combination that is used for botnet Command&control (C&C) attributed to Cobalt Strike
Threat Hunt — feed corroboration
Not present in any configured threat-intel feed.
Flagged by 6 of 91 VirusTotal vendors
| Vendor | Verdict | Detection |
|---|---|---|
| AlphaSOC | malicious | malware |
| CRDF | malicious | malicious |
| Hunt.io Intelligence | malicious | malicious |
| MalwareURL | malicious | malware |
| SOCRadar | malicious | malware |
| Gridinsoft | suspicious | suspicious |
Details From VirusTotal
Basic Properties
| Network | 23.27.140.0/22 |
| Country | US |
| AS owner | Evoxt Sdn. Bhd. |
| ASN | 149440 |
| Regional registry | ARIN |
History
| Last analysis | 2026-09-26 00:26 UTC |
| Last modified on VirusTotal | 2026-09-26 01:26 UTC |
| WHOIS record date | 2026-09-23 10:56 UTC |
References (2)
- Malpedia profile ThreatFox IOCs
-
ThreatFox IOC page
ThreatFox IOCs
Indicator that identifies a botnet command&control server (C&C). IOC type: ip:port combination that is used for botnet Command&control (C&C). Attributed malware: Cobalt Strike (aliases: Agentemis,BEACON,CobaltStrike,cobeacon). Confidence: 100. Observed port: 443. First seen: 2026-09-25 01:05:07 UTC. Reporter: anonymous. Tags: CobaltStrike.
Remediations (8)
-
web:download.cobaltstrike.com
We would like to show you a description here but the site won't allow us.
-
web:owasp.org
The Access-Control-Request-Method header is used when a browser performs a preflight OPTIONS request and lets the client indicate the request method of the final request. On the other hand, the Access-Control-Allow-Method is a response header used by the server to describe the methods the clients are allowed to use.
-
web:pubs.acs.org
ACS Publications
-
web:redblueteam.wordpress.com
We would like to show you a description here but the site won't allow us.
-
web:www.cisa.gov
The number of covert networks used by China-nexus cyber actors is large, with new networks regularly developed and deployed. The existing covert networks change too, either because of defensive or legal action, or simply as a result of software updates and new exploits being used to target different technologies for incorporation into the network.
-
web:www.crowdstrike.com
We would like to show you a description here but the site won't allow us.
-
web:www.efrag.org
52. To respond to a frequent implementation question new guidance has been introduced on how to consider the implemented remediation , mitigation and prevention policies and actions when assessing the materiality of an impact (so called "gross versus net" issue).
-
web:www.gdatasoftware.com
The second stage loader communicates with the C&C server to get the RAT component, once again scripted with JScript. The RAT component has the capability to continue running until directed to stop, and execute additional commands received from the C&C server.
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.