Wednesday, 17 May 2017
During the last decade, ransomware (cryptolockers) show sustainable growth that can be explained by an effective business model that incorporates an anonymous payment system (Bitcoin) and network (TOR). This allows attackers to go untraceable and unpunished in their criminal activities.
Monday, 15 May 2017
WannaCry (WannaCryptor) is becoming probably the most popular cryptolocker in the history of ransomware. It has nothing new in terms of files encryption (RSA + AES using MS CryptoAPI) but uses MS17-010 (a.k.a. ETERNALBLUE named by NSA) vulnerability to propagate itself through local networks using the Server Message Block (SMB) protocol as a network worm resulting in thousands of infections of Windows machines that have not been updated so far.
Tuesday, 2 May 2017
One more targeted attack against Ukraine that used spear phishing to deliver the DarkTrack backdoor through a fake prescription of the Minister of Defense of Ukraine. The target is CERT in the military domain.