Avast discovered a distribution point where a malware toolset is hosted, but also serves as temporary storage for the gigabytes of data being exfiltrated on a daily basis, including documents, recordings, and webmail dumps including scans of passports from Asian, American and European citizens and diplomats applying for Burmese visas, from Burmese human rights activists and Burmese government institutions.

ViperSoftX is a multi-stage stealer that exhibits interesting hiding capabilities. Other than stealing cryptocurrencies, it also spreads the VenomSoftX browser extension, which performs man-in-the-browser attacks.

Our deep analysis of the Worok toolset (previously described by ESET Research) reveals the final stage, hidden in a PNG file, that steals data and provides a multifunctional backdoor using the DropBox repository and API.

We recently discovered a zero-day vulnerability in Google Chrome (CVE-2022-2294) when it was exploited in the wild in an attempt to attack Avast users in the Middle East. The vulnerability was a memory corruption in WebRTC that was abused to achieve shellcode execution in Chrome’s renderer process. We reported this vulnerability to Google, who patched it on July 4, 2022.

We recently discovered a zero-day vulnerability in Google Chrome (CVE-2022-2294) when it was exploited in the wild in an attempt to attack Avast users in the Middle East. The vulnerability was a memory corruption in WebRTC that was abused to achieve shellcode execution in Chrome’s renderer process. We reported this vulnerability to Google, who patched it on July 4, 2022.

Introduction Rootkits are dangerous pieces of malware. Once in place, they are usually really hard to detect. Their code is typically more challenging to write than other malware, so developers resort to code reuse from open source projects. As rootkits are very interesting to analyze, we are always looking out for these kinds of samples […]

Introduction Rootkits are dangerous pieces of malware. Once in place, they are usually really hard to detect. Their code is typically more challenging to write than other malware, so developers resort to code reuse from open source projects. As rootkits are very interesting to analyze, we are always looking out for these kinds of samples […]