confirmed host

IP address 43.138.195.173

Quasarremote-access trojan controller · :5000

First seen 2026-09-19, last confirmed 2026-09-23. No longer listed. On AS45090.

archived last confirmed feed checked TLP:CLEAR

Relations

Values this address shares with other hosts in this archive, rarest first. A shared value says the hosts were set up alike, not that one operator runs them.

SharedValueOther hosts
JA4X templatea373a9f83c6b_7022c563de38_258381d3d68a17 other hosts · 15 listed

Not shared with any other host in this archive: 1 certificate.

Network context

SharedValueOther hosts
NetworkAS45090 · Shenzhen Tencent Computer Systems Com…538 other hosts · 494 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-09-19
Evidence1 certificate
Look up elsewhereVirusTotal · Shodan · Censys

Observation history

Listed on 1 of the 5 days from its first sighting by the scanner on 2026-09-19 to its last confirmation on 2026-09-23 UTC.

  1. listed
  2. :5000

2026-08-292026-09-23

  • first seen to last confirmed

A marked day is a UTC day the feed listed this address. The feed keeps a listener for up to 90 days after its last confirmation, so a listed day is not a confirmation. A listener no longer in the feed is drawn to its last confirmation.

Listed days as dates
  • 2026-09-23 (1 day)

43.138.195.173:5000 · Quasar

no longer listed Last confirmed

first seen2026-09-19 13:29 UTC
serviceip-port · tcp
observed hostblark.chat
networkAS45090 · Shenzhen Tencent Computer Systems Com…
confidence100 / 100
tls certificate4261366ac1a7a8f733de5a7b9b8499455d522f28fad4c7cc0c70ffb46642352a
cert subjectblark.chat
cert issuerTrustAsia DV TLS RSA CA 2024
cert issuer orgTrustAsia Technologies, Inc.
cert validity2026-07-09 → 2026-10-07
cert typeissuer-signed
cert key2048-bit
cert serial (hex)291931a0313dc1db5f9257e8134f36f59a4384d5
cert serial (decimal)234630463246382883461767722541066429009695573205
cert namesblark.chat www.blark.chat

The names above are what the certificate asserts, signed by the issuer it names, which may be a public certificate authority, a private one, or one a builder ships. This site verifies none of it, so treat a name here as a lead to investigate, never an attribution.

jarm2ad2ad0002ad2ad00042d42d000000ad9bf51cc3f5a1e29eecb81d0c7b06eb

Hosts sharing a value with this one

17 other hosts in this archive share at least one value with this one. Each is listed once, under its first shared value in Relations order. Dates and status are from the records that share a value.

AddressFamilySharesLast confirmedStatus
JA4X template · 17 other hosts · 15 listed

These hosts’ certificates share one JA4X template, which points to the same certificate tooling. It is not evidence of a single operator.

103.249.106.28Flying EagleJA4X templatelisted
103.249.106.27Flying EagleJA4X templatelisted
103.249.105.43Flying EagleJA4X templatelisted
192.229.92.36Flying EagleJA4X templatelisted
103.249.106.26Flying EagleJA4X templatelisted
154.12.83.111Flying EagleJA4X templatelisted
103.249.105.42Flying EagleJA4X templatelisted
103.206.22.66Flying EagleJA4X templatelisted
108.187.7.162Flying EagleJA4X templatelisted
103.121.95.77Flying EagleJA4X templatelisted
175.178.255.222QuasarJA4X templatearchived
81.68.213.31QuasarJA4X templatearchived
154.219.100.114Flying EagleJA4X templatelisted
154.219.100.47Flying EagleJA4X templatelisted
118.107.47.28Flying EagleJA4X templatelisted
118.107.47.27Flying EagleJA4X templatelisted
154.201.68.199Flying EagleJA4X templatelisted

Deploy

No listener here is listed, so there are no rules. The queries below search past traffic: run them once, not as a standing alert.

Each query searches the last 30 days of your logs for connections to these listeners. Queries hold only addresses, ports and file hashes.

Microsoft Defender XDR (KQL)
DeviceNetworkEvents
| where Timestamp > ago(30d)
| where (RemoteIP == "43.138.195.173" and RemotePort in (5000))
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "43.138.195.173" and DestinationPort in (5000))
Splunk (SPL, CIM data models)
| tstats summariesonly=false count min(_time) as first_time max(_time) as last_time
    from datamodel=Network_Traffic where earliest=-30d
    ((All_Traffic.dest_ip="43.138.195.173" (All_Traffic.dest_port=5000)))
    by All_Traffic.src_ip All_Traffic.dest_ip All_Traffic.dest_port
Elastic (EQL)
network where
  (destination.ip == "43.138.195.173" and destination.port in (5000))

Cite this record

Plain text, for a ticket or a report
Address 43.138.195.173 Family Quasar (remote-access trojan controller) Ports :5000 Status archived (feed checked 2026-10-30 20:07 UTC) First seen 2026-09-19 Last confirmed 2026-09-23 Record https://publicmosaic.com/ip/43.138.195.173 Source Public Mosaic, TLP:CLEAR