Idea for downgrader: Modify Trojan.PSPBrick
I just brainstormed an idea just now. I learned a little bit about how the Trojan.PSPBrick works... http://securityresponse.symantec.com....pspbrick.html
I already know that the TIFF exploit has been patched for all firmwares v2.01 and above, and I may be wrong in this, but I think I remember reading on some forums that people using v2.01+ bricked their PSPs with this trojan, so what we need to do is modify the virus so that it doesn't only delete all of the startup system files but also replaces them with older firmware versioned ones. This came up out of the top of my head... please reply :o