Akira Ransomware Cracked: GPU Brute-Force Method Discovered
2025-03-17
Security researcher Tinyhack has discovered a GPU-based brute-force method to decrypt the Akira ransomware. Akira, known for its exorbitant ransom demands (reaching tens of millions of dollars), targets high-profile victims. Using an RTX 4090, Tinyhack cracked encrypted files in 7 days; 16 GPUs reduced this to just over 10 hours. The method exploits four nanosecond timestamps used as seeds in Akira's encryption, brute-forcing to find the precise timestamps and generate decryption keys. Success requires untouched files and local disk storage (NFS complicates decryption). While a significant cybersecurity win, Akira's developers will likely patch this vulnerability quickly.
Tech
GPU brute-force