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Infostealing malware masquerading as generative AI tools

Over the past six months, there has been a notable surge in Android financial threats – malware targeting victims’ mobile banking funds, whether in the form of ‘traditional’ banking malware or, more recently, cryptostealers, according to ESET.

 infostealing malware generative AI

Vidar infostealer targets Windows users

Infostealing malware can now be found impersonating generative AI tools, and new mobile malware GoldPickaxe is capable of stealing facial recognition data to create deepfake videos used by the malware’s operators to authenticate fraudulent financial transactions. Video games and cheating tools used in online multiplayer games were recently found to contain infostealer malware such as the RedLine Stealer, which saw several detection spikes in H1 2024 in ESET telemetry.

“GoldPickaxe has both Android and iOS versions and has been targeting victims in Southeast Asia through localized malicious apps. As ESET researchers investigated this malware family, they discovered that an older Android sibling of GoldPickaxe, called GoldDiggerPlus, has also tunneled its way to Latin America and South Africa by actively targeting victims in these regions,” explains Jiří Kropáč, Director of ESET Threat Detection.

In recent months infostealing malware also began to utilize the impersonation of generative AI tools. In H1 2024, Rilide Stealer was spotted misusing the names of generative AI assistants, such as OpenAI’s Sora and Google’s Gemini, to entice potential victims.

In another malicious campaign, the Vidar infostealer was lurking behind a supposed Windows desktop app for AI image generator Midjourney – even though Midjourney’s AI model is only accessible via Discord. Since 2023, ESET Research has increasingly seen cybercriminals abusing the AI theme – a trend that is expected to continue.

Law enforcement takes down LockBit

Gaming enthusiasts who ventured out of the official gaming ecosystem were attacked by infostealers, as some cracked video games and cheating tools used in online multiplayer games were recently found to contain infostealer malware such as Lumma Stealer and RedLine Stealer.

RedLine Stealer saw several detection spikes in H1 2024 in ESET telemetry, caused by campaigns in Spain, Japan and Germany. Its recent waves were so significant that RedLine Stealer detections in H1 2024 surpassed those from H2 2023 by a third.

Balada Injector, a gang notorious for exploiting WordPress plug-in vulnerabilities, continued to run rampant in the first half of 2024, compromising over 20,000 websites and racking up over 400,000 hits in ESET telemetry for the variants used in the gang’s recent campaign.

On the ransomware scene, former leading player LockBit was knocked off its pedestal by Operation Chronos, a global disruption conducted by law enforcement in February 2024. Although ESET telemetry recorded two notable LockBit campaigns in H1 2024, these were found to be the result of non-LockBit gangs using the leaked LockBit builder.

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