45.87.53.6
C2 Infrastructure CobaltStrike Indicator 45.87.53.6 Type ip Category C2 Infrastructure Family CobaltStrike Hosting HongKong Starfax Limited Confidence high VT Score 19/94 Source shodan First Seen 2026-07-01 00:00:55 UTC Last Seen 2026-10-10 00:00:19 UTC Shodan View on Shodan ↗
Raw JSON
{
"cobalt_strike_beacon": {
"x86": {
"beacon_type": "HTTPS",
"jitter": 20,
"dns-beacon.strategy_rotate_seconds": -1,
"useragent_header": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.246",
"http-post.client": [
"Host: cs.tpedu2metricstw.dpdns.org",
"Content-Type: text/plain",
"Accept: */*",
"Accept-Language: zh-CN,zh;q=0.9,en;q=0.8",
"Accept-Encoding: gzip, deflate",
"Priority: u=1, i",
"_ZF=",
"Cookie"
],
"maxgetsize": 2464428,
"process-inject.min_alloc": 9216,
"post-ex.spawnto_x86": "%windir%\\syswow64\\werfault.exe",
"port": 8443,
"sleeptime": 6300,
"uses_cookies": 1,
"proxy.behavior": "2 (Use IE settings)",
"process-inject.execute": [
"ntdll.dll:RtlUserThreadStart",
"NtQueueApcThread-s",
"SetThreadContext",
"CreateRemoteThread",
"kernel32.dll:LoadLibraryA",
"RtlCreateUserThread"
],
"process-inject.startrwx": 4,
"post-ex.spawnto_x64": "%windir%\\sysnative\\werfault.exe",
"process-inject.stub": "ae5afcfee8026674dc8f3b4f2da46c7f",
"http-get.uri": "cs.tpedu2metricstw.dpdns.org,/api/v1/get",
"watermark": 987654321,
"dns-beacon.strategy_fail_seconds": -1,
"server.publickey_md5": "23df461e477b2a85344332c55d2dd1c8",
"dns-beacon.strategy_fail_x": -1,
"stage.cleanup": 1,
"http-post.verb": "POST",
"http-post.uri": "/api/v1/post",
"process-inject.userwx": 32,
"http-get.verb": "GET",
"http-get.client": [
"Host: cs.tpedu2metricstw.dpdns.org",
"Accept: */*",
"Accept-Language: zh-CN,zh;q=0.9,en;q=0.8",
"Accept-Encoding: gzip, deflate",
"Priority: u=1, i",
"_UK=",
"Cookie"
]
},
"x64": {
"beacon_type": "HTTPS",
"jitter": 20,
"dns-beacon.strategy_rotate_seconds": -1,
"useragent_header": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.246",
"http-post.client": [
"Host: cs.tpedu2metricstw.dpdns.org",
"Content-Type: text/plain",
"Accept: */*",
"Accept-Language: zh-CN,zh;q=0.9,en;q=0.8",
"Accept-Encoding: gzip, deflate",
"Priority: u=1, i",
"_ZF=",
"Cookie"
],
"maxgetsize": 2464428,
"process-inject.min_alloc": 9216,
"post-ex.spawnto_x86": "%windir%\\syswow64\\werfault.exe",
"port": 8443,
"sleeptime": 6300,
"uses_cookies": 1,
"proxy.behavior": "2 (Use IE settings)",
"process-inject.execute": [
"ntdll.dll:RtlUserThreadStart",
"NtQueueApcThread-s",
"SetThreadContext",
"CreateRemoteThread",
"kernel32.dll:LoadLibraryA",
"RtlCreateUserThread"
],
"process-inject.startrwx": 4,
"post-ex.spawnto_x64": "%windir%\\sysnative\\werfault.exe",
"process-inject.stub": "ae5afcfee8026674dc8f3b4f2da46c7f",
"http-get.uri": "cs.tpedu2metricstw.dpdns.org,/api/v1/get",
"watermark": 987654321,
"dns-beacon.strategy_fail_seconds": -1,
"server.publickey_md5": "23df461e477b2a85344332c55d2dd1c8",
"dns-beacon.strategy_fail_x": -1,
"stage.cleanup": 1,
"http-post.verb": "POST",
"http-post.uri": "/api/v1/post",
"process-inject.userwx": 32,
"http-get.verb": "GET",
"http-get.client": [
"Host: cs.tpedu2metricstw.dpdns.org",
"Accept: */*",
"Accept-Language: zh-CN,zh;q=0.9,en;q=0.8",
"Accept-Encoding: gzip, deflate",
"Priority: u=1, i",
"_UK=",
"Cookie"
]
}
},
"ip": 760689926,
"http": {
"status": 404,
"robots_hash": null,
"redirects": [],
"title_hash": null,
"securitytxt": null,
"title": null,
"sitemap_hash": null,
"robots": null,
"dom_hash": 0,
"headers_hash": 973024115,
"host": "45.87.53.6",
"html": "",
"server_hash": -1340961475,
"location": "/",
"components": {
"Nginx": {
"categories": [
"Web servers",
"Reverse proxies"
]
}
},
"securitytxt_hash": null,
"server": "nginx",
"sitemap": null,
"html_hash": 0
},
"port": 8443,
"transport": "tcp",
"location": {
"city": "Singapore",
"region_code": "01",
"area_code": null,
"longitude": 103.85007,
"latitude": 1.28967,
"country_code": "SG",
"country_name": "Singapore"
},
"product": "Cobalt Strike Beacon",
"hash": -2094257832,
"timestamp": "2026-06-30T11:39:17.291229",
"ssl": {
"chain_sha256": [
"6a926e83b7c8667794f9b64f60a162e951a851b7647ab16097d539f7c466acda"
],
"jarm": "2ad2ad16d2ad2ad00042d42d00042ddb04deffa1705e2edc44cae1ed24a4da",
"tlsext": [
{
"id": 43,
"name": "supported_versions"
},
{
"id": 51,
"name": "key_share"
},
{
"id": 10,
"name": "supported_groups"
}
],
"chain": [
"-----BEGIN CERTIFICATE-----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\nxpRH2u6Ajt+OOVrRL9KGMs+6\n-----END CERTIFICATE-----\n"
],
"versions": [],
"acceptable_cas": [],
"alpn": [],
"cert": {
"sig_alg": "sha256WithRSAEncryption",
"issued": "20260609024600Z",
"expires": "20410605024600Z",
"pubkey": {
"bits": 2048,
"type": "rsa"
},
"version": 2,
"extensions": [
{
"critical": true,
"data": "\\x03\\x02\\x05\\xa0",
"name": "keyUsage"
},
{
"data": "0\\x14\\x06\\x08+\\x06\\x01\\x05\\x05\\x07\\x03\\x02\\x06\\x08+\\x06\\x01\\x05\\x05\\x07\\x03\\x01",
"name": "extendedKeyUsage"
},
{
"critical": true,
"data": "0\\x00",
"name": "basicConstraints"
},
{
"data": "\\x04\\x14\\xc3\\x9eK\\x97\\x17\\x89\\xfc0\\xd88Vk\\x13o]\\xafB\\x9dV\\x12",
"name": "subjectKeyIdentifier"
},
{
"data": "0\\x16\\x80\\x14$\\xe8SW]|4@\\x87\\xa9\\xeb\\x94\\xdb\\xba\\xe1\\x16x\\xfc)\\xa4",
"name": "authorityKeyIdentifier"
},
{
"data": "0200\\x06\\x08+\\x06\\x01\\x05\\x05\\x070\\x01\\x86$http://ocsp.cloudflare.com/origin_ca",
"name": "authorityInfoAccess"
},
{
"data": "08\\x82\\x1b*.tpedu2metricstw.dpdns.org\\x82\\x19tpedu2metricstw.dpdns.org",
"name": "subjectAltName"
},
{
"data": "0/0-\\xa0+\\xa0)\\x86\\'http://crl.cloudflare.com/origin_ca.crl",
"name": "crlDistributionPoints"
}
],
"fingerprint": {
"sha256": "6a926e83b7c8667794f9b64f60a162e951a851b7647ab16097d539f7c466acda",
"sha1": "7646de93b8a14b31db034d04a4d8a7f3b23c8ec8"
},
"serial": 2.7382707249991295e+47,
"issuer": {
"C": "US",
"L": "San Francisco",
"OU": "CloudFlare Origin SSL Certificate Authority",
"O": "CloudFlare, Inc.",
"ST": "California"
},
"expired": false,
"subject": {
"OU": "CloudFlare Origin CA",
"CN": "CloudFlare Origin Certificate",
"O": "CloudFlare, Inc."
}
},
"cipher": {
"version": "TLSv1.3",
"bits": 256,
"name": "TLS_AES_256_GCM_SHA384"
},
"trust": {
"revoked": false,
"browser": null
},
"handshake_states": [
"before SSL initialization",
"SSLv3/TLS write client hello",
"SSLv3/TLS read server hello",
"TLSv1.3 read encrypted extensions",
"SSLv3/TLS read server certificate",
"TLSv1.3 read server certificate verify",
"SSLv3/TLS read finished",
"SSLv3/TLS write change cipher spec",
"SSLv3/TLS write finished",
"SSL negotiation finished successfully"
],
"ja3s": "f03a69cfa3944d6d51bc52febd87a1a8",
"ocsp": {}
},
"hostnames": [
"tpedu2metricstw.dpdns.org"
],
"org": "HongKong Starfax Limited",
"data": "HTTP/1.1 404 Not Found\r\nDate: Tue, 30 Jun 2026 11:39:17 GMT\r\nServer: nginx\r\nContent-Length: 0\r\nConnection: Keep-Alive\r\nContent-Type: text/plain\r\nX-Content-Type-Options: nosniff\r\n\r\n\nCobalt Strike Beacon:\n x86:\n beacon_type: HTTPS\n dns-beacon.strategy_fail_seconds: -1\n dns-beacon.strategy_fail_x: -1\n dns-beacon.strategy_rotate_seconds: -1\n http-get.client:\n Host: cs.tpedu2metricstw.dpdns.org\n Accept: */*\n Accept-Language: zh-CN,zh;q=0.9,en;q=0.8\n Accept-Encoding: gzip, deflate\n Priority: u=1, i\n _UK=\n Cookie\n http-get.uri: cs.tpedu2metricstw.dpdns.org,/api/v1/get\n http-get.verb: GET\n http-post.client:\n Host: cs.tpedu2metricstw.dpdns.org\n Content-Type: text/plain\n Accept: */*\n Accept-Language: zh-CN,zh;q=0.9,en;q=0.8\n Accept-Encoding: gzip, deflate\n Priority: u=1, i\n _ZF=\n Cookie\n http-post.uri: /api/v1/post\n http-post.verb: POST\n jitter: 20\n maxgetsize: 2464428\n port: 8443\n post-ex.spawnto_x64: %windir%\\sysnative\\werfault.exe\n post-ex.spawnto_x86: %windir%\\syswow64\\werfault.exe\n process-inject.execute:\n ntdll.dll:RtlUserThreadStart\n NtQueueApcThread-s\n SetThreadContext\n CreateRemoteThread\n kernel32.dll:LoadLibraryA\n RtlCreateUserThread\n process-inject.min_alloc: 9216\n process-inject.startrwx: 4\n process-inject.stub: ae5afcfee8026674dc8f3b4f2da46c7f\n process-inject.userwx: 32\n proxy.behavior: 2 (Use IE settings)\n server.publickey_md5: 23df461e477b2a85344332c55d2dd1c8\n sleeptime: 6300\n stage.cleanup: 1\n useragent_header: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.246\n uses_cookies: 1\n watermark: 987654321\n x64:\n beacon_type: HTTPS\n dns-beacon.strategy_fail_seconds: -1\n dns-beacon.strategy_fail_x: -1\n dns-beacon.strategy_rotate_seconds: -1\n http-get.client:\n Host: cs.tpedu2metricstw.dpdns.org\n Accept: */*\n Accept-Language: zh-CN,zh;q=0.9,en;q=0.8\n Accept-Encoding: gzip, deflate\n Priority: u=1, i\n _UK=\n Cookie\n http-get.uri: cs.tpedu2metricstw.dpdns.org,/api/v1/get\n http-get.verb: GET\n http-post.client:\n Host: cs.tpedu2metricstw.dpdns.org\n Content-Type: text/plain\n Accept: */*\n Accept-Language: zh-CN,zh;q=0.9,en;q=0.8\n Accept-Encoding: gzip, deflate\n Priority: u=1, i\n _ZF=\n Cookie\n http-post.uri: /api/v1/post\n http-post.verb: POST\n jitter: 20\n maxgetsize: 2464428\n port: 8443\n post-ex.spawnto_x64: %windir%\\sysnative\\werfault.exe\n post-ex.spawnto_x86: %windir%\\syswow64\\werfault.exe\n process-inject.execute:\n ntdll.dll:RtlUserThreadStart\n NtQueueApcThread-s\n SetThreadContext\n CreateRemoteThread\n kernel32.dll:LoadLibraryA\n RtlCreateUserThread\n process-inject.min_alloc: 9216\n process-inject.startrwx: 4\n process-inject.stub: ae5afcfee8026674dc8f3b4f2da46c7f\n process-inject.userwx: 32\n proxy.behavior: 2 (Use IE settings)\n server.publickey_md5: 23df461e477b2a85344332c55d2dd1c8\n sleeptime: 6300\n stage.cleanup: 1\n useragent_header: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.246\n uses_cookies: 1\n watermark: 987654321\n",
"asn": "AS142637",
"cpe23": [
"cpe:2.3:a:f5:nginx",
"cpe:2.3:a:helpsystems:cobalt_strike"
],
"isp": "STAR FAX GROUP PTE LTD",
"cpe": [
"cpe:/a:f5:nginx",
"cpe:/a:helpsystems:cobalt_strike"
],
"domains": [
"dpdns.org"
],
"ip_str": "45.87.53.6",
"os": null,
"_shodan": {
"region": "na",
"module": "https",
"ptr": true,
"options": {},
"id": "f9907b19-a0d5-458b-b35b-d5df3324d8e2",
"crawler": "5e070e08e49493a3c52046c387bd5bc87c1052b9"
}
}