US seizes domains tied to Chinese botnet targeting NASA, DOJ, Senate

Botnet’s Reach Extends Across Critical Agencies

On Wednesday, the FBI announced it had seized several domains linked to a massive botnet. The botnet, operated by Chinese state‑backed hackers, was used to infiltrate NASA, the Department of Justice and the U. S. Senate. The takedown denies the operators access to the command infrastructure and disrupts ongoing cyber operations against federal agencies.

The Justice Department said the domains were part of a coordinated network that routed traffic through compromised servers worldwide. By taking control of the domains, the FBI cut off the botnet’s command‑and‑control channels. Preventing the hackers from issuing new commands or updating malware on infected systems.

The botnet, operated from servers in China, had compromised thousands of computers globally. Enabling the infiltrators to exfiltrate data from NASA’s research networks, access internal communications at the Department of Justice, and penetrate Senate committee systems. Officials say the intrusion attempts were part of a broader espionage campaign aimed at stealing sensitive government information.

How the Takedown Disrupts Ongoing Espionage?

A Justice Department spokesperson said, The seizure deprives the adversary of a vital communication pathway. Emphasizing that the action blocks the botnet’s ability to issue commands or distribute updates to compromised machines.

By seizing the domains, the FBI removed the public-facing addresses that the botnet relied on to coordinate attacks. Without these addresses, the malicious software can no longer receive new instructions, making it far more difficult for the Chinese operators to sustain their campaign against federal networks.

The takedown marks a rare law‑enforcement success in curbing a state‑sponsored cyber tool, but experts warn that other botnet nodes may remain active. Continued vigilance and coordinated international action will be essential to prevent future breaches of critical U. S. institutions. The action demonstrates the United States' commitment to defending its digital infrastructure.

Frequently Asked Questions

What agencies were targeted by the Chinese botnet? The botnet targeted NASA, the Department of Justice and the U. S. Senate, according to the Justice Department.

How did the FBI manage to seize the domains? The FBI obtained legal authority to take control of the domain registration records, effectively shutting down the botnet’s command‑and‑control servers.

Will this action stop all Chinese cyber activities? While the seizure disables a major infrastructure component, investigators believe additional botnet servers may still exist, so ongoing monitoring and further takedowns are needed.