This is likely a reference to GitHub, which was DoSed by the Chinese government for hosting a repository that was mirroring uncensored Western media on a domain that could not be blocked by the Great Firewall without hobbling the Chinese software industry.

The attribution wasn't subtle - a substantial fraction of Baidu's ads/analytics traffic served to domestic Chinese users was rewritten to hammer that specific repository directly.

NYT coverage at the time: https://www.nytimes.com/2015/03/31/technology/china-appears-...