Official Malware from the German Police
The Chaos Computer Club has disassembled and analyzed the Trojan used by the German police for legal intercept. In its default mode, it takes regular screenshots of the active window and sends it to the police. It encrypts data in AES Electronic Codebook mode with—are you ready?—a fixed key across all versions. There’s no authentication built in, so it’s easy to spoof. It sends data to a command-and-control server in the U.S., which is almost certainly against German law. There’s code to allow the controller to install additional software onto the target machine, but that’s not authenticated either, so it would be easy to fool the Trojan into installing anything.
Detailed analysis in German. F-Secure has announced it will treat the Trojan as malware. I hope all the other anti-virus companies will do the same.
EDITED TO ADD (10/12): Another story. And some good information on the malware. Germany’s Justice Minister is calling for an investigation.
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