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Decrypted: Akira Ransomware
Researchers for Avast have developed a decryptor for the Akira ransomware and released it for public download. The Akira ransomware appeared in March 2023 and since then, the gang claims successful...
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Avast Q2/2023 Threat Report
Unveiling the Dominance of Scams Amidst a 24% Surge in Blocked Attacks Foreword This quarter has been nothing short of extraordinary, with cyber-threat activity reaching its highest point in the past...
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Rhysida Ransomware Technical Analysis
Rhysida is a new ransomware strain that emerged in the second quarter of 2023. The first mention of the Rhysida ransomware was in May 2023 by MalwareHunterTeam (sample’s timestamp is May 16, 2023). As...
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Avast Q3/2023 Threat Report
Stunning 50% Surge in Blocked Attacks, Resulting in 1 Billion Monthly Blocks Foreword As we delve into the Q3/2023 Threat Report, it is evident that the past quarter was not an ordinary one....
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Avast Updates Babuk Ransomware Decryptor in Cooperation with Cisco Talos and...
Babuk, an advanced ransomware strain, was publicly discovered in 2021. Since then, Avast has blocked more than 5,600 targeted attacks, mostly in Brazil, Czech Republic, India, the United States, and...
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Avast Q4/2023 Threat Report
10 Billion Attacks Blocked in 2023, Qakbot’s Resurrection, and Google API Abused Foreword Welcome to the new edition of our report. As we bid farewell to the year 2023, let’s briefly revisit the...
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Decrypted: Rhysida Ransomware
In October 2023, we published a blog post containing technical analysis of the Rhysida ransomware. What we intentionally omitted in the blog post was that we had been aware of a cryptographic...
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Decrypted: HomuWitch Ransomware
HomuWitch is a ransomware strain that initially emerged in July 2023. Unlike the majority of current ransomware strains, HomuWitch targets end-users – individuals – rather than institutions and...
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Avast Q1/2024 Threat Report
Nearly 90% of Threats Blocked are Social Engineering, Revealing a Huge Surge of Scams, and Discovery of the Lazarus APT Campaign Foreword We’re pleased to present the latest edition of our report for...
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Decrypted: DoNex Ransomware and its Predecessors
Researchers from Avast have discovered a flaw in the cryptographic schema of the DoNex ransomware and its predecessors. In cooperation with law enforcement organizations, we have been silently...
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