Posted by BeauHD from the behind-the-scenes dept.
According to Kaspersky, hackers linked to Chinese threat actors have targeted Russian state agencies and tech companies in a campaign named EastWind. The Record reports: [T]he attackers used the GrewApacha remote access trojan (RAT), an unknown PlugY backdoor and an updated version of CloudSorcerer malware, which was previously used to spy on Russian organizations. The GrewApacha RAT has been used by the Beijing-linked hacking group APT31 since at least 2021, the researchers said, while PlugY shares many similarities with tools used by the suspected Chinese threat actor known as APT27.
According to Kaspersky, the hackers sent phishing emails containing malicious archives. In the first stage of the attack, they exploited a dynamic link library (DLL), commonly found in Windows computers, to collect information about the infected devices and load the additional malicious tools. While Kaspersky didn’t explicitly attribute the recent attacks to APT31 or APT27, they highlighted links between the tools that were used. Although PlugY malware is still being analyzed, it is highly likely that it was developed using the DRBControl backdoor code, the researchers said. This backdoor was previously linked to APT27 and bears similarities to PlugX malware, another tool typically used by hackers based in China.
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