{"id":28486185,"url":"https://github.com/fox-it/operation-wocao","last_synced_at":"2026-01-28T09:36:32.943Z","repository":{"id":74469270,"uuid":"228982039","full_name":"fox-it/operation-wocao","owner":"fox-it","description":"Operation Wocao - Indicators of Compromise","archived":false,"fork":false,"pushed_at":"2019-12-19T13:36:26.000Z","size":6,"stargazers_count":30,"open_issues_count":0,"forks_count":7,"subscribers_count":7,"default_branch":"master","last_synced_at":"2025-07-02T12:48:10.179Z","etag":null,"topics":["apt20","iocs","operation-wocao","suricata","yara"],"latest_commit_sha":null,"homepage":null,"language":"YARA","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/fox-it.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2019-12-19T05:31:43.000Z","updated_at":"2023-06-28T02:43:31.000Z","dependencies_parsed_at":null,"dependency_job_id":"046e23ad-a60b-4ff3-a6f0-d22f7728993f","html_url":"https://github.com/fox-it/operation-wocao","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/fox-it/operation-wocao","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fox-it%2Foperation-wocao","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fox-it%2Foperation-wocao/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fox-it%2Foperation-wocao/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fox-it%2Foperation-wocao/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/fox-it","download_url":"https://codeload.github.com/fox-it/operation-wocao/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fox-it%2Foperation-wocao/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28761898,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-25T23:06:19.311Z","status":"ssl_error","status_checked_at":"2026-01-25T23:03:50.555Z","response_time":113,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["apt20","iocs","operation-wocao","suricata","yara"],"created_at":"2025-06-08T01:10:31.987Z","updated_at":"2026-01-28T09:36:32.939Z","avatar_url":"https://github.com/fox-it.png","language":"YARA","funding_links":[],"categories":[],"sub_categories":[],"readme":"Operation Wocao - Indicators of Compromise\r\n==========================================\r\n\r\nThis repository contains the indicators of compromise related to the Operation Wocao report.\r\n\r\n\u003e Operation Wocao (我操, “Wǒ cāo”, used as “shit” or “damn”) is the name that Fox-IT uses to describe the hacking activities of a Chinese based hacking group. \r\n\r\nThe full report can be found here:\r\n\r\n * [https://www.fox-it.com/en/news/whitepapers/operation-wocao-shining-a-light-on-one-of-chinas-hidden-hacking-groups/](https://www.fox-it.com/en/news/whitepapers/operation-wocao-shining-a-light-on-one-of-chinas-hidden-hacking-groups/)\r\n\r\n### Available IOCs\r\n| Filename                          | Description                                                                   |\r\n|-----------------------------------|-------------------------------------------------------------------------------|\r\n| [ips.txt](ips.txt)                | The various IPs obversed, either as C2 or as operator IPs.                    |\r\n| [hashes.txt](hashes.txt)          | The hashes for various malicious scripts and binaries.                        |\r\n \r\n### Available signatures\r\n| Filename                          | Description                                                                   |\r\n|-----------------------------------|-------------------------------------------------------------------------------|\r\n| [yara.yar](yara.yar)              | Contains Yara signatures to detect various malicious scripts and binaries.    |\r\n| [suricata.rules](suricata.rules)  | Contains Suricata signatures to detect XServer and other malicious traffic.   |\r\n\r\n### Context for IP addresses\r\n| IP                | Hoster                | Active period | Description |\r\n|-------------------|-----------------------|---------------|-------------|\r\n| 185.244.150.236   | Host Sailor           | 2018          | Identified in the memory dump of a compromised machine. Used as a command line argument for a PowerShell backdoor. Also used to access webshells. |\r\n| 217.182.129.156   | OVH                   | 2018-2019     | Back-connect used by the agent backdoor. Identified based on compromised machines connecting to this IP with a known suspicious client hello value in the TLS handshake. IP is hardcoded. |\r\n| 23.254.211.108    | Hostwinds             | 2018-2019     | Used to connect to a VPN concentrator with stolen credentials. |\r\n| 108.61.179.160    | Choopa / Vultr        | 2018-2019     | Used to connect to a VPN concentrator with stolen credentials. |\r\n| 198.46.140.26     | ColoCrossing          | 2018-2019     | Used to connect to a VPN concentrator with stolen credentials. |\r\n| 31.222.185.215    | Rackspace             | 2018-2019     | Used to access webshells. |\r\n| 45.77.229.10      | Choopa / Vultr        | 2018-2019     | Used to access webshells. |\r\n| 46.101.153.58     | Digital Ocean         | 2018-2019     | Used to access webshells. |\r\n| 62.141.37.236     | myLoc                 | 2018-2019     | Used to access webshells. |\r\n| 95.179.161.243    | Vultr                 | 2018-2019     | Used to access webshells. |\r\n| 138.68.144.161    | Digital Ocean         | 2018-2019     | Used to access webshells. |\r\n| 185.191.228.108   | Cogent Communications | 2018-2019     | Used to access webshells. |\r\n| 209.97.140.206    | Alameda               | 2018-2019     | Used to access webshells. |\r\n| 46.182.106.190    | _Tor exit node_       | *             | Used to access webshells. |\r\n| 141.255.162.36    | _Tor exit node_       | *             | Used to access webshells. |\r\n| 185.220.101.0     | _Tor exit node_       | *             | Used to access webshells. |","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffox-it%2Foperation-wocao","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffox-it%2Foperation-wocao","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffox-it%2Foperation-wocao/lists"}