Impersonations of Zoom accounted for 41 percent of all malicious files spread.
Attacks involving malware masquerading as widely used software and services have impacted nearly 8,500 small and medium-sized business users during the first four months of 2025.
According to GBHackers News the most impersonated software in such intrusions was Zoom, which accounted for 41 percent of all malicious files spread between January and April, according to a report from Kaspersky.
While Microsoft Outlook and PowerPoint were the next most spoofed programs, accounting for 16 percent each of the identified files, OpenAI's ChatGPT artificial intelligence chatbot had the greatest increase in nefarious files at 115 percent.
Additional findings showed three and one percentage point increases in malicious files impersonating Microsoft Teams and Google Drive. Increasingly sophisticated phishing attacks have also been launched against SMBs, with the emergence of Google business account- and banking service-spoofing pages.
Written by
Dan Raywood is a B2B journalist with 25 years of experience, including covering cybersecurity for the past 17 years. He has extensively covered topics from Advanced Persistent Threats and nation-state hackers to major data breaches and regulatory changes.
He has spoken at events including 44CON, Infosecurity Europe, RANT Forum, BSides Scotland, Steelcon and the National Cyber Security Show, and served as editor of SC Media UK, Infosecurity Magazine and IT Security Guru. He was also an analyst with 451 Research and a product marketing lead at Tenable.
