WannaCry and ExPetr: Kaspersky Lab researchers conducted a comparison analysis των δύο τελευταίων επιθέσεων με ransomware προletterwhich were carried out in different modes of operation and with different objectives.
However, both attacks have some similarities, showing signs of an emerging trend of disastrous targeted activity.
- Unlike previous destructive attacks with technologies Wiper, like BlackEnergy and Destover in 2014, and Shamoon and StonedDrill in 2016-2017, which were carried out in a very methodical and destructive way, the motivations of WannaCry and ExPetr – whether for malicious activity or 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 of messages encouraging users to pay BTC to wallet their.
- ExPetr's development was steep, advanced and technically flexible, focusing on the software of organizations associated with Ukraine. However, ExPetr's attackers apparently did not return either with widespread messages or challenges for their goals, nor prolonged the incident by asking for Bitcoins to decrypt 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.
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