Researchers find new destructive wiper malware in Ukraine
Researchers have discovered a new type of destructive wiper malware affecting computers in Ukraine, making it at least the third strain of wiper to have hit Ukrainian systems since the Russian invasion began.
The malware, dubbed CaddyWiper, was found by researchers at Slovakia-based cybersecurity firm ESET, who shared details in a tweet thread posted Monday.
According to the researchers, the malware erases user data and partition information from any drives attached to a compromised machine. Sample code shared on Twitter suggests the malware corrupts files on the machine by overwriting them with null byte characters, making them unrecoverable.
“We know that if the wiper works, it will effectively render the system useless,” Jean-Ian Boutin, head of threat research at ESET, told The Verge. “However, it is unclear at this point what is the overall impact of this attack.”