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Authors
SirCam, Hybris, Nimda…What do they have in common? They’re on the Virus Top 20 list for the month of September, 2001.
For a complete look at the Top 20 and a full description of each virus in it,
click here.
Authors
From the same authors
In the same category
Kaspersky discloses new tools and techniques discovered in 2025 Tomiris activities: multi-language reverse shells, Havoc and AdaptixC2 open-source frameworks, communications via Discord and Telegram.
Kaspersky experts analyze the ToddyCat APT attacks targeting corporate email. We examine the new version of TomBerBil, the TCSectorCopy and XstReader tools, and methods for stealing access tokens from Outlook.
Kaspersky GReAT experts dive deep into the BlueNoroff APT’s GhostCall and GhostHire campaigns. Extensive research detailing multiple malware chains targeting macOS, including a stealer suite, fake Zoom and Microsoft Teams clients and ChatGPT-enhanced images.
Kaspersky researchers discovered previously unidentified commercial Dante spyware developed by Memento Labs (formerly Hacking Team) and linked it to the ForumTroll APT attacks.
Extra! Extra! September 2001 Top 20!