WannaCry and ExPetr: The researchers της Kaspersky Lab πραγματοποίησαν μια συγκριτική ανάλυση των two of recent ransomware attacks, which were carried out in different modes and on different targets. 
However, both attacks have some similarities, showing signs of an emerging trend of disastrous targeted activity.
- Unlike previous catastrophic attacks with Wiper technologies, such as BlackEnergy and Destover in 2014, and Shamoon and StonedDrill in 2016-2017, which took place in a very methodical and destructive way, WannaCry and ExPetr were motivated - either for destructive activity or for some sabotage - remain unclear.
- There was the same delay of about two months for the delivery of worm-enabled variants: according to the first information about the goals, the development of WannaCry started in March, while ExPetr was held in April. But the ransomware / wiper itself was propagated much later in May and June respectively.
- WannaCry's development was slow and hands-on, with scattered global targets, inconsistent profiles and no attention to collecting Bitcoins: the attacker sent a set messages which encouraged users to pay BTC to their wallet.
- The development of ExPetr was rapid, advanced and technically flexible, focusing on the software of organizations connected to Ukraine. However, the ExPetr attackers apparently did not return with either widespread messages or challenges to their targets, nor did they extend the incident by asking for Bitcoin transactions to deencryption discs.
According to the researchers of Kaspersky Lab, the differences in the development of each ransomware show that the two attacks were not carried out by the same attacker.
But there are obvious similarities in both WannaCry and ExPetr tactics, which indicates the launch of new targeted APT attack activity behind the ransomware.
For more information, visit the specialistsite of Securelist.com.
