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Malicious code in APKPure app

Recently, we’ve found malicious code in version 3.17.18 of the official client of the APKPure app store. The app is not on Google Play, but it is itself a quite a popular app store around the world. Most likely, its infection is a repeat of the CamScanner incident, when the developer implemented a new adware SDK from an unverified source. We notified...

The leap of a Cycldek-related threat actor

Introduction In the nebula of Chinese-speaking threat actors, it is quite common to see tools and methodologies being shared. One such example of this is the infamous “DLL side-loading triad”: a legitimate executable, a malicious DLL to be sideloaded by it, and an encoded payload, generally dropped from a self-extracting archive. Initially considered...

Browser lockers: extortion disguised as a fine

Browser lockers (aka browlocks) are a class of online threats that prevent the victim from using the browser and demand a ransom. A locker is a fake page that dupes the user, under a fictitious pretext (loss of data, legal liability, etc.), into making a call or a money transfer, or giving out payment details. The “locking” consists of preventing the...

Financial Cyberthreats in 2020

2020 was challenging for everyone: companies, regulators, individuals. Due to the limitations imposed by the epidemiological situation, particular categories of users and businesses were increasingly targeted by cybercriminals. While we were adjusting to remote work and the rest of the new conditions, so were scammers. As a result, 2020 was extremely...

APT10: sophisticated multi-layered loader Ecipekac discovered in A41APT campaign

Why is the campaign called A41APT? In 2019, we observed an APT campaign targeting multiple industries, including the Japanese manufacturing industry and its overseas operations, that was designed to steal information. We named the campaign A41APT (not APT41) which is derived from the host name “DESKTOP-A41UVJV” from the attacker’s system used in the...

Doxing in the corporate sector

Introduction Doxing refers to the collection of confidential information about a person without their consent for the purpose of inflicting harm on that person or to otherwise gain some benefit from gathering or disclosing such information. Normally, doxing involves a threat to specific people, such as media personalities or participants of online...

Threat landscape for industrial automation systems. Statistics for H2 2020

Figures Indicator H1 2020 H2 2020 2020 Global percentage of attacked ICS computers 32.6% 33.42% 38.55% Percentage of attacked ICS computers by region Northern Europe 10.1% 11.5% 12.3% Western Europe 15.1% 14.8% 17.6% Australia 16.3% 17.0% 18.9% United States and Canada 17.2% 16.5%...

Convuster: macOS adware now in Rust

Introduction Traditionally, most malicious objects detected on the macOS platform are adware: besides the already familiar Shlayer family, the TOP 10 includes Bnodlero, Cimpli, Adload and Pirrit adware. As a rule, most tend to be written in C, Objective-C or Swift. Recently, however, cybercriminals have been paying increased attention to new programming...

COVID-19: Examining the threat landscape a year later

A year ago — everything changed. In an effort to stem the tide of a rapidly spreading pandemic, the world shut down. Shops were forced to shut their doors, and whole countries were placed on stringent lockdowns. Schools were closed around the world, with more than one billion children affected, and the vast majority of companies had to switch to remote...

Good old malware for the new Apple Silicon platform

Introduction A short while ago, Apple released Mac computers with the new chip called Apple M1. The unexpected release was a milestone in the Apple hardware industry. However, as technology evolves, we also observe a growing interest in the newly released platform from malware adversaries. This inevitably leads us to new malware samples compiled for...

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