On August 31, 2021 we ran a joint webinar between VirusTotal and Kaspersky, with a focus on YARA rules best practices and real world examples. In this post, we answer your questions that we didn’t answer during webinar.
This is our latest summary of advanced persistent threat (APT) activity, focusing on events that we observed during Q1 2022.
We recently discovered a Trojanized DeFi application that was compiled in November 2021. This application contains a legitimate program called DeFi Wallet that saves and manages a cryptocurrency wallet, but also implants a full-featured backdoor.
At the end of 2021, we inspected UEFI firmware that was tampered with to embed a malicious code we dub MoonBounce. In this report we describe how the MoonBounce implant works and how it is connected to APT41.
It appears that BlueNoroff shifted focus from hitting banks and SWIFT-connected servers to solely cryptocurrency businesses as the main source of the group’s illegal income.