Even though the obfuscation tricks are relatively simple and well-known, they are in a combination that totally fools ATP which lets the infected attachment through to customers. SLK to bypass Microsoft much-hyped ATP (Advanced Threat Protection) system. SLK to get past their email security and infect Excel for Windows computers.Īs reported by Avanan, criminals have found a way to bypass the email security for Office 365 hosted mailboxes (possibly as well), allowing an infected email attachment to reach Microsoft’s customers. Thanks for joining us! You'll get a welcome message in a few moments.ĭespite fair warnings, Microsoft has allowed an old Excel format.
