The Kronos banking trojan is back. Researchers have identified four unique campaigns that use variants of the once formidable malware.

A new wave of document attacks targeting inboxes do not require enabling macros in order for adversaries to trigger an infection chain that ultimately delivers FormBook malware.

Malicious e-mail attachments used in this campaign don’t display any warnings when opened and silently install malware.

Hackers are exploiting three Microsoft Office vulnerabilities to spread the Zyklon HTTP malware .