Regarding Sicarii's broken decryption process, researchers said that "during execution, the malware regenerates a new RSA key pair locally, uses the newly generated key material for encryption, and then discards the private key."

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[–] Cevilia@lemmy.blahaj.zone 55 points 2 days ago (1 children)

Even if the malware author did correct the issue, it's unknown whether those already compromised can benefit, or if they're out of luck.

They literally said the private key was discarded. It's absolutely known whether those already compromised can benefit. They can't.

[–] Natanael@infosec.pub 9 points 1 day ago (1 children)

Well, unless they also made key generation shitty, because that's equally plausible and would likely allow RSA keys to be broken (it's surprisingly hard to generate RSA keys safely)

[–] Cevilia@lemmy.blahaj.zone 4 points 1 day ago

I know just enough to know that I absolutely shouldn't try to roll my own encryption, and that's enough knowledge for me