Hacker group Black Mirror has released a new cache of intercepted internal documents allegedly tied to Russia’s state defense conglomerate Rostec, including never-before-seen photographs of the assembly and testing process for the 1RL257 Krasukha-4 electronic warfare system.
The materials appear to be part of a formal production report created for a foreign customer—possibly Serbia—and provide the first visual confirmation of components and manufacturing details of one of Russia’s most closely guarded ground-based electronic warfare platforms.
The Krasukha-4 system is described as “one of the country’s most advanced ground-based electronic warfare capabilities.” Its purpose is stated as “to detect and jam large radars, such as those on airborne early warning and control aircraft, and satellites.”
The leaked photos, believed to have been taken in 2023, show component assembly, internal hardware, and stages of system testing. These visuals offer rare insight into a platform whose inner layout and combat systems had previously remained classified.
A complete Krasukha-4 system consists of two vehicles, both based on the 8×8 KAMAZ-6350 chassis—one equipped with the EW emitter and the other configured as a command post. Russian officials have claimed the system can locate and jam a wide array of radar types, including airborne imaging radars, active seekers in missiles, and ground-based surveillance radars.
According to its manufacturer, Concern Radio-Electronic Technologies (KRET), the Krasukha-4 has an effective operating radius of “between 150 and 300 kilometers (93 to 186 miles) in any direction, depending on environmental factors.”
In addition to suppression, the russian state media reference unconfirmed claims that “Krasukha-4’s jamming system can emit powerful enough beams of RF energy to physically damage sensitive electronic systems on certain targets.” If true, this would position the system not just as a signal disruptor but potentially as an offensive weapon against electronic components.
What makes the leak notable is not only its content, but the broader context: Moscow has gone to great lengths to shield the performance characteristics and internal architecture of its strategic EW systems. The leaked report, with embedded visual references, could enable Western analysts and intelligence agencies to more accurately assess the design, modularity, and deployment logic behind the Krasukha-4 system.
Russia has long touted the system as a core component of its layered air defense doctrine—designed to blind high-value assets like E-3 AWACS and RQ-4 Global Hawk drones before they can collect targeting data. However, experts have noted that many of the system’s claimed effects remain difficult to verify due to the absence of open-source test data.
The leak is part of an ongoing pattern in which Black Mirror has targeted Russian defense contractors, previously exposing files related to drone manufacturing, radar exports, and tank modernization projects.