The Virus Top Twenty – May 2003
Kaspersky Labs presents the Virus Top 20 for the month of May, 2003.
The percentage shown represents the percentage of registered incidences.
Position
Virus
Percentage by Occurrence…
Reports
The HoneyMyte APT evolves with a kernel-mode rootkit and a ToneShell backdoor
Kaspersky discloses a 2025 HoneyMyte (aka Mustang Panda or Bronze President) APT campaign, which uses a kernel-mode rootkit to deliver and protect a ToneShell backdoor.
Evasive Panda APT poisons DNS requests to deliver MgBot
Kaspersky GReAT experts analyze the Evasive Panda APT’s infection chain, including shellcode encrypted with DPAPI and RC5, as well as the MgBot implant.
Cloud Atlas activity in the first half of 2025: what changed
Kaspersky expert describes new malicious tools employed by the Cloud Atlas APT, including implants of their signature backdoors VBShower, VBCloud, PowerShower, and CloudAtlas.
Operation ForumTroll continues: Russian political scientists targeted using plagiarism reports
Kaspersky’s GReAT experts have uncovered a new wave of cyberattacks by the ForumTroll APT group, targeting Russian political scientists and delivering the Tuoni framework to their devices.
