C2IntelFeeds

Automatically created C2 Feeds | Also posted via @drb_ra

• Feeds ( Source/Raw Data courtesy of Censys - https://censys.io/ )
  Search 2.0 has massively improved detection rates on non-standard ports. Great job Censys Team!

  By default C2s seen active in the last 7 days are added to the main feed files. There is also a 30 day feed for any C2 seen live in the last 30 days.

  • C2 IPs - Live C2 IP (no frontend or CDN IPs - All bad)

  • C2 Domains - All domain names extracted from implants, including domain fronting values and fake Host headers (High abuse of MS, Apple and Google).

  • C2 Domains Filtered - Excludes several domains abused in domain fronting, along with fake headers for popular sites. Current filter list see: exclusions.rex file

  • C2 Domains with URL - Same as domains and domains filtered but including an extra column with the URI path of the C2

  • C2 Domains with URL and IP - Same as domains and domains filtered but including an extra column with the URI path of the C2 and another with the C2 IP

  • Unverified C2 IPs - Live C2 IPs based simply on the Censys search/query no validation can easily be performed or further configuration extracted. Some however are extremely accurate. Details in table below.

    Tool	Censys Search
    Sliver	(services.tls.certificates.leaf_data.subject.common_name="multiplayer" and same_service(services.jarm.fingerprint= 00000000000000000043d43d00043de2a97eabb398317329f027c66e4c1b01 and NOT services.port=31337 )) OR (services.banner_hashes="sha256:1f25c454ae331c582fbdb7af8a9839785a795b06a6649d92484b79565f7174ae" and services.jarm.fingerprint=3fd21b20d00000021c43d21b21b43d41226dd5dfc615dd4a96265559485910) OR same_service(services.tls.certificates.leaf_data.pubkey_bit_size: 2048 and services.tls.certificates.leaf_data.subject.organization: /(ACME|Partners|Tech|Cloud|Synergy|Test|Debug)? ?(co|llc|inc|corp|ltd)?/ and services.jarm.fingerprint: 3fd21b20d00000021c43d21b21b43d41226dd5dfc615dd4a96265559485910 and services.tls.certificates.leaf_data.subject.country: US and services.tls.certificates.leaf_data.subject.postal_code: /<1001-9999>/)
    Covenant	same_service(services.tls.certificates.leaf_data.subject_dn="CN=Covenant" AND services.tls.certificates.leaf_data.issuer_dn="CN=Covenant") OR (services.software.product="Kestrel web server" AND services.http.response.html_title="Covenant")
    Brute Ratel C4	services.http.response.body_hash="sha1:1a279f5df4103743b823ec2a6a08436fdf63fe30" OR same_service(services.http.response.body_hash="sha1:bc3023b36063a7681db24681472b54fa11f0d4ec" and services.jarm.fingerprint="3fd21b20d00000021c43d21b21b43de0a012c76cf078b8d06f4620c2286f5e")
    Mythic	same_service(services.tls.certificates.leaf_data.subject_dn="O=Mythic" AND services.http.response.html_title="Mythic") OR services.banner_hashes="sha256:fb8b5d212f449a8ba61ab9ed9b44853315c33d12a07f8ce4642892750e251530"
    Deimos	services.jarm.fingerprint: "00000000000000000041d00000041d9535d5979f591ae8e547c5e5743e5b64" OR same_service(services.banner_hashes="sha256:38ea755e162c55ef70f9506dddfd01641fc838926af9c43eda652da63c67058b" and services.http.response.body_hashes="sha1:04ca7e137e1e9feead96a7df45bb67d5ab3de190" and services.tls.certificates.leaf_data.subject_dn="O=Acme Co" and services.tls.certificates.leaf_data.issuer_dn="O=Acme Co" and not services.tls.certificates.leaf_data.names="127.0.0.1:3000")
    Nighthawk C2	same_service(services.banner="HTTP/1.1 404 Not Found\r\nDate: <REDACTED>\r\nX-Test: 2\r\nServer: Apache\r\nContent-Length: 20\r\n" and services.http.response.body_hashes="sha256:d872e8e4176213ea84ebc76d8fb621c31b4ca116fd0a51258813e804fe110ca4")
    Bianlian Go Trojan	[REDACTED]
    Havoc	same_service(services.tls.certificates.leaf_data.issuer.organization=/(Acme|ACME|acme|Partners|PARTNERS|partners|Tech|TECH|tech|Cloud|CLOUD|cloud|Synergy|SYNERGY|synergy|Test|TEST|test|Debug|DEBUG|debug)? ?(Co|CO|co|Llc|LLC|llc|Inc|INC|inc|Corp|CORP|corp|Ltd|LTD|ltd)?/ AND services.tls.certificates.leaf_data.issuer.country=US AND services.tls.certificates.leaf_data.issuer.postal_code=/[0-9]{4}/) OR services.http.response.headers.unknown.name: "X-Havoc" OR services.banner_hashes="sha256:f5a45c4aa478a7ba9b44654a929bddc2f6453cd8d6f37cd893dda47220ad9870"
    Responder	services.banner="HTTP/1.1 401 Unauthorized\r\nServer: Microsoft-IIS/7.5\r\nDate: <REDACTED>\r\nContent-Type: text/html\r\nWWW-Authenticate: NTLM\r\nContent-Length: 0\r\n" OR services.banner_hashes="sha256:0fa31c8c34a370931d8ffe8097e998f778db63e2e036fbd7727a71a0dcf5d28c" OR services.smb.negotiation_log.server_guid="00000000000000000000000000000000ee85abf7eaf60c4f928192476deb76a9"
    Pupy RAT	same_service(services.http.response.headers.Etag:"aa3939fc357723135870d5036b12a67097b03309" AND services.http.response.headers.Server="nginx/1.13.8") OR same_service(services.tls.certificates.leaf_data.issuer.organization:/[a-zA-Z]{10}/ AND services.tls.certificates.leaf_data.subject.organization:/[a-zA-Z]{10}/ AND services.tls.certificates.leaf_data.subject.organizational_unit="CONTROL")
    Qakbot	same_service(services.jarm.fingerprint={"21d14d00021d21d21c42d43d0000007abc6200da92c2a1b69c0a56366cbe21","04d02d00004d04d04c04d02d04d04d9674c6b4e623ae36cc2d998e99e2262e"} AND services.http.response.body_hash="sha1:22e5446e82b3e46da34b5ebce6de5751664fb867") OR same_service(services.banner_hashes="sha256:5234096d7003929ad67037af6f5816933cab9e85f9b286468249ac9ab9bfb861" AND services.http.response.body_hash="sha1:22e5446e82b3e46da34b5ebce6de5751664fb867")
    DcRat	services.tls.certificates.leaf_data.issuer_dn="CN=DcRat Server, OU=qwqdanchun, O=DcRat By qwqdanchun, L=SH, C=CN"
    Viper	services.http.response.body_hashes="sha1:cd40dbcdae84b1c8606f29342066547069ed5a33" OR services.http.response.favicons.md5_hash="a7469955bff5e489d2270d9b389064e1"
    Supershell	services.http.response.html_title="Supershell - 登录" OR services.http.response.body_hashes="sha256:21ec9c71669486c5b874b1be3b9c341133e83939fdbeefa2080df1b1703c4928"

  The easiest files for most of you to use should be C2 IPs, C2 Domains Filtered and Unverified C2 IPs or their 30 day counterparts.

• VPN

  • Nord VPN Exit Nodes
  • Proton VPN Entry & Exit Nodes

• C2_configs

  • Detailed CobaltStrike Configuration in CSV and JSON including the following fields: FirstSeen,ip,ASN,BeaconType,C2Server,Port,SleepTime,Jitter,Proxy_Behavior,HostHeader,CertificateNames,HttpGet_Metadata,HttpPostUri,HttpPost_Metadata,KillDate,PipeName,UserAgent,Watermark,DNS_Idle,DNS_Sleep IP reflects the true C2 IP not the one provided in the configuration of the beacon.
  • Version 2 includes 3 additional fields SpawnToX86,SpawnToX64,PublicKey
  • There's also a 30 day JSON only version that includes First and Last Seen dates within the last 30 days.
  • Powershell Empire and PoSHC2 are also avaliable in JSON format.

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.