Dubbed "Cherry Blossom," the framework was allegedly designed by the Central Intelligence Agency (CIA) with the help of Stanford Research Institute (SRI International), an American nonprofit research institute, as part of its ‘Cherry Bomb’ project.
Cherry Blossom is basically a remotely controllable firmware-based implant for wireless networking devices, including routers and wireless access points (APs), which exploits router vulnerabilities to gain unauthorized access and then replace firmware with custom Cherry Blossom firmware.
"An implanted device [called Flytrap] can then be used to monitor the internet activity of and deliver software exploits to targets of interest." a leaked CIA manual reads.
"The wireless device itself is compromised by implanting a customized CherryBlossom firmware on it; some devices allow upgrading their firmware over a wireless link, so no physical access to the device is necessary for a successful infection," WikiLeaks says.
According to Wikileaks, CIA hackers use Cherry Blossom hacking tool to hijack wireless networking devices on the targeted networks and then perform man-in-the-middle attacks to monitor and manipulate the Internet traffic of connected users.