9/27/2023 0 Comments Msert exchange![]() ![]() Out of the around 50 investigations over 70% did have webshells installed at some point.All of the described situations are real world examples we observed in our investigations. While the vulnerabilities and how attackers exploit them has been described in great length by many entities, we wanted to give our readers insights into what the checking procedures suggested by Microsoft and other fail to detect. ![]() In the last 2 weeks the InfoGuard CSIRT investigated over 50 potential Exchange Server breaches based on some of the 0-day vulnerabilities published by Microsoft on March 2nd 2021. The findings and actions described below are the results from over 50 Exchange breach investigations conducted by InfoGuard CSIRT and are unfortunately real. In this blog post, we want to give you an update on what critical footholds the testing methods proposed by Microsoft and others fail to detect. The highest warning level applies, the threat situation is more than critical. On March 2, Microsoft released updates for Exchange server vulnerabilities. ![]()
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