39.100.66.238
C2 Infrastructure CobaltStrike Indicator 39.100.66.238 Type ip Category C2 Infrastructure Family CobaltStrike Hosting Aliyun Computing Co., LTD Confidence high VT Score 6/94 Source shodan First Seen 2026-09-25 16:00:10 UTC Last Seen 2026-10-10 00:00:19 UTC Shodan View on Shodan ↗
Raw JSON
{
"cobalt_strike_beacon": {
"x86": {
"beacon_type": "HTTP",
"dns-beacon.strategy_rotate_seconds": -1,
"useragent_header": "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)",
"http-post.client": [
"Content-Type: application/octet-stream",
"id"
],
"maxgetsize": 1048576,
"post-ex.spawnto_x86": "%windir%\\syswow64\\rundll32.exe",
"port": 80,
"sleeptime": 60000,
"uses_cookies": 1,
"proxy.behavior": "2 (Use IE settings)",
"process-inject.execute": [
"CreateThread",
"SetThreadContext",
"CreateRemoteThread",
"RtlCreateUserThread"
],
"process-inject.startrwx": 64,
"post-ex.spawnto_x64": "%windir%\\sysnative\\rundll32.exe",
"process-inject.stub": "b50b86d735412685eb6044ad8d01781c",
"http-get.uri": "39.100.66.238,/ptj",
"watermark": 391144938,
"dns-beacon.strategy_fail_seconds": -1,
"server.publickey_md5": "870c9cac6f1a579abf9d7e8b3acee744",
"dns-beacon.strategy_fail_x": -1,
"http-post.verb": "POST",
"http-post.uri": "/submit.php",
"process-inject.userwx": 64,
"http-get.verb": "GET",
"http-get.client": [
"Cookie"
]
},
"x64": {
"beacon_type": "HTTP",
"dns-beacon.strategy_rotate_seconds": -1,
"useragent_header": "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; BOIE9;ENXA)",
"http-post.client": [
"Content-Type: application/octet-stream",
"id"
],
"maxgetsize": 1048576,
"post-ex.spawnto_x86": "%windir%\\syswow64\\rundll32.exe",
"port": 80,
"sleeptime": 60000,
"uses_cookies": 1,
"proxy.behavior": "2 (Use IE settings)",
"process-inject.execute": [
"CreateThread",
"SetThreadContext",
"CreateRemoteThread",
"RtlCreateUserThread"
],
"process-inject.startrwx": 64,
"post-ex.spawnto_x64": "%windir%\\sysnative\\rundll32.exe",
"process-inject.stub": "b50b86d735412685eb6044ad8d01781c",
"http-get.uri": "39.100.66.238,/ptj",
"watermark": 391144938,
"dns-beacon.strategy_fail_seconds": -1,
"server.publickey_md5": "870c9cac6f1a579abf9d7e8b3acee744",
"dns-beacon.strategy_fail_x": -1,
"http-post.verb": "POST",
"http-post.uri": "/submit.php",
"process-inject.userwx": 64,
"http-get.verb": "GET",
"http-get.client": [
"Cookie"
]
}
},
"ip": 660882158,
"http": {
"status": 404,
"robots_hash": null,
"redirects": [],
"title_hash": null,
"securitytxt": null,
"title": null,
"sitemap_hash": null,
"robots": null,
"dom_hash": 0,
"components_hash": 0,
"headers_hash": 2129120964,
"host": "39.100.66.238",
"html": "",
"server_hash": null,
"location": "/",
"components": {},
"securitytxt_hash": null,
"headers": {
"date": "Thu, 24 Sep 2026 18:51:52 GMT",
"content-length": "0",
"content-type": "text/plain"
},
"server": null,
"sitemap": null,
"html_hash": 0
},
"port": 80,
"transport": "tcp",
"cpe23_hash": -527748401,
"location": {
"city": "Zhangjiakou",
"region_code": "HE",
"area_code": null,
"longitude": 114.87139,
"latitude": 40.78341,
"country_code": "CN",
"country_name": "China"
},
"product": "Cobalt Strike Beacon",
"hash": -1307308187,
"timestamp": "2026-09-24T18:51:53.100257",
"hostnames": [],
"org": "Aliyun Computing Co., LTD",
"data": "HTTP/1.1 404 Not Found\r\nDate: Thu, 24 Sep 2026 18:51:52 GMT\r\nContent-Type: text/plain\r\nContent-Length: 0\r\n\r\n\nCobalt Strike Beacon:\n x86:\n beacon_type: HTTP\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 Cookie\n http-get.uri: 39.100.66.238,/ptj\n http-get.verb: GET\n http-post.client:\n Content-Type: application/octet-stream\n id\n http-post.uri: /submit.php\n http-post.verb: POST\n maxgetsize: 1048576\n port: 80\n post-ex.spawnto_x64: %windir%\\sysnative\\rundll32.exe\n post-ex.spawnto_x86: %windir%\\syswow64\\rundll32.exe\n process-inject.execute:\n CreateThread\n SetThreadContext\n CreateRemoteThread\n RtlCreateUserThread\n process-inject.startrwx: 64\n process-inject.stub: b50b86d735412685eb6044ad8d01781c\n process-inject.userwx: 64\n proxy.behavior: 2 (Use IE settings)\n server.publickey_md5: 870c9cac6f1a579abf9d7e8b3acee744\n sleeptime: 60000\n useragent_header: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727)\n uses_cookies: 1\n watermark: 391144938\n x64:\n beacon_type: HTTP\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 Cookie\n http-get.uri: 39.100.66.238,/ptj\n http-get.verb: GET\n http-post.client:\n Content-Type: application/octet-stream\n id\n http-post.uri: /submit.php\n http-post.verb: POST\n maxgetsize: 1048576\n port: 80\n post-ex.spawnto_x64: %windir%\\sysnative\\rundll32.exe\n post-ex.spawnto_x86: %windir%\\syswow64\\rundll32.exe\n process-inject.execute:\n CreateThread\n SetThreadContext\n CreateRemoteThread\n RtlCreateUserThread\n process-inject.startrwx: 64\n process-inject.stub: b50b86d735412685eb6044ad8d01781c\n process-inject.userwx: 64\n proxy.behavior: 2 (Use IE settings)\n server.publickey_md5: 870c9cac6f1a579abf9d7e8b3acee744\n sleeptime: 60000\n useragent_header: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; BOIE9;ENXA)\n uses_cookies: 1\n watermark: 391144938\n",
"asn": "AS37963",
"cpe23": [
"cpe:2.3:a:helpsystems:cobalt_strike"
],
"isp": "Hangzhou Alibaba Advertising Co.,Ltd.",
"cpe": [
"cpe:/a:helpsystems:cobalt_strike"
],
"domains": [],
"ip_str": "39.100.66.238",
"os": null,
"_shodan": {
"region": "na",
"module": "http",
"ptr": true,
"options": {
"scan": "nJevhAOdgQ00oL0Y"
},
"id": "8d3e80de-2eea-4286-8580-3fc1e98e6de8",
"crawler": "85a5be66a1913a867d4f8cd62bd10fb79f410a2a"
}
}