It is unclear if the NoxPlayer compromise is the work of a state-sponsored group or a financially-motivated group looking to compromise game developers.ĮSET did, however, point out that the three malware strains deployed via malicious NoxPlayer updates had "similarities" with other malware strains used in a Myanmar presidential office website supply-chain compromise in 2018 and in early 2020 in an intrusion into a Hong Kong university. The second is the case of the VGCA, the official certificate authority of the Vietnamese government.ĮSET researchers did not formally link this incident to a well-known hacking group. The first is the case of Able Desktop, software used by many Mongolian government agencies. This incident is also the third supply chain attack discovered by ESET over the past two months. Until today, and based on its own telemetry, ESET said it spotted malware-laced NoxPlayer updates being delivered to only five victims, located in Taiwan, Hong Kong, and Sri Lanka.ĮSET has released today a report with technical details for NoxPlayers to determine if they received a malware-laced update and how to remove the malware.Ī BigNox spokesperson did not return a request for comment. "Three different malware families were spotted being distributed from tailored malicious updates toselected victims, with no sign of leveraging any financial gain, but rather surveillance-related capabilities," ESET said in a report shared today with ZDNet.ĭespite evidence implying that attackers had access to BigNox servers since at least September 2020, ESET said the threat actor didn't target all of the company's users but instead focused on specific machines, suggesting this was a highly-targeted attack looking to infect only a certain class of users. Using this access, hackers tampered with the download URL of NoxPlayer updates in the API server in order to deliver malware to NoxPlayer users. The attack was discovered by Slovak security firm ESET on January 25, last week, and targeted BigNox, a company that makes NoxPlayer, a software client for emulating Android apps on Windows or macOS desktops.ĮSET says that based on evidence its researchers gathered, a threat actor compromised one of the company's official API () and file-hosting servers (). Only five detected until now, in countries such as Taiwan, Hong Kong, and Sri Lanka.īy Catalin Cimpanu for Zero Day | Febru- 10:30 GMT (10:30 GMT) | Topic: SecurityĪ mysterious hacking group has compromised the server infrastructure of a popular Android emulator and has delivered malware to a handful of victims across Asia in a highly-targeted supply chain attack. The second is the case of the VGCA, the official certificate authority of the Vietnamese government.Attackers targeted only a handful of victims. These correlations referred to the three malware strains deployed via malicious NoxPlayer updates, which ESET said contained "similarities" to other malware strains used in a Myanmar presidential office website supply-chain compromise in 2018 and early 2020 in an intrusion into a Hong Kong university. "We are still investigating, but we have found tangible correlations to a group we internally call Stellera, which we will be reporting about in the near future." A mysterious hacking group has compromised the server infrastructure of a popular. "We discard the possibility that this operation is the product of some financially motivated group," an ESET spokesperson told ZDNet today via email. Hacker group inserted malware in NoxPlayer Android emulator ZDNet. adopt additional measures, notably encryption of sensitive data, to avoid exposing users' personal informationĪs for who's behind the attack, ESET doesn't know, but it knows who it wasn't.implement file integrity verification using MD5 hashing and file signature checks.use only HTTPS to deliver software updates in order to minimize the risks of domain hijacking and Man-in-the-Middle (MitM) attacks.
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