Customers in the US using antivirus software from the Moscow-based cybersecurity company Kaspersky are finding that the software has been deleted and replaced by antivirus protection from a different company,

Some US Kaspersky security users got a big surprise when their protection was suddenly replaced by UltraAV due to a government ban. But Kaspersky’s demise has been looming for years.

The Russia-based antivirus software may be now banned in the United States, but it hasn't left without a trace.

"Following the recent decision by the U.S. Department of Commerce that prohibits Kaspersky from selling or updating certain antivirus products in the United States, Kaspersky part

Kaspersky's antivirus software deletes itself across the US and installs UltraAV instead without notifying customers. Some are frustrated and struggling to uninstall the new program.