Researchers at security company ESET uncover Crutch, a new malware backdoor. The newly detailed Crutch campaign appears tailored towards particular targets, suggesting a ministry of foreign affairs in an EU country.
This malware is built to steal sensitive documents and other files by secretly copying them from Dropbox accounts controlled by the attackers. This malware campaign has been active from 2015 through to 2020 and researchers have linked it to the Turla hacking group due to similarities with previously uncovered campaigns. The backdoor has repeatedly been updated and changed over the years in order to maintain effectiveness while also keeping it hidden. The attackers were able to move laterally and compromise additional machines by reusing admin passwords.
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