Whether the number is more than that of victims to date who can recreate this? Who knows
Other victims whose data were encrypted by the same malware (before any updates) could benefit from this disclosure to try to recover their data.
if they don't release their code, then what's the point of having the code? they accomplished their task, and now here you go for someone else that might have the same need. otherwise, don't get infected by a new version
New versions of Akira and any other ransomware are constantly being developed. This code is specific to a certain version of the malware.
As noted in the article, it also requires:
1. An extremely capable sysadmin 2. A bunch of GPU capacity 3. That the timestamps be brute-forced separately
So it's not exactly a turn-key defeat of Akira.
If they realize that, why publish this? Seems irresponsible at best to give a decryptor in such gory detail for what, Internet cred? It's an interesting read, and my intellectual curiosity is piqued, it just seems keeping the details to yourself would be better for the community at-large.
> Everytime I wrote something about ransomware (in my Indonesian blog), many people will ask for ransomware help. ... > Just checking if the ransomware is recoverable or not may take several hours with a lot of efforts (e.g: if the malware is obfuscated/protected). So please don’t ask me to do that for free
So charge them for it?