Home Cyber Security Gelsevirine malware target government and others in Middle East and Asia
Gelsevirine malware target government and others in Middle East and Asia

Gelsevirine malware target government and others in Middle East and Asia

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ESET Research has been analyzing multiple campaigns since last year and some of the campaigns were attributed to the Gelsemium cyberespionage group, and the security company was able to track down the earliest version of their main malware, Gelsevirine, to 2014.

During the investigation, ESET researchers found a new version of Gelsevirine, a backdoor that is both complex and modular. Victims of its campaigns are located in East Asia as well as the Middle East and include governments, religious organizations, electronics manufacturers and universities. At present, the group has managed to remain mostly under the radar. This research was exclusively previewed at the annual ESET World conference this week.

Gelsemium is very targeted – with only a few victims, according to ESET telemetry – and considering its capabilities, this points to the conclusion that the group is involved in cyberespionage. The group has a vast number of adaptable components. “Gelsemium’s whole chain might appear simple at first sight, but the exhaustive number of configurations, implanted at each stage, can modify on-the-fly settings for the final payload, making it harder to understand,” explains ESET researcher Thomas Dupuy, co-author of the Gelsemium research analysis.

Gelsemium uses three components and a plug-in system to give the operators a range of possibilities to gather information: the dropper Gelsemine, the loader Gelsenicine, and the main plugin Gelsevirine.

ESET researchers believe that Gelsemium is behind the supply-chain attack against BigNox that was previously reported as Operation NightScout. This was a supply-chain attack, reported by ESET, that compromised the update mechanism of NoxPlayer, an Android emulator for PCs and Macs, and part of BigNox’s product range, with over 150 million users worldwide. The investigation uncovered some overlap between this supply-chain attack and the Gelsemium group. Victims originally compromised by that supply-chain attack were later being compromised by Gelsemine. Among the different variants examined, “variant 2” from the article shows similarities with Gelsemium malware.

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